Datasets:

Terrantez

/

raft_dataset_pubmed

like 0

Question: Does the National Institutes of Health Stroke Scale favor left hemisphere strokes? Context: [The National Institutes of Health Stroke Scale (NIHSS) is a valid, reproducible scale that measures neurological deficit. Of 42 possible points, 7 points are directly related to measurement of language compared with only 2 points related to neglect.]...[We examined the placebo arm of the NINDS t-PA stroke trial to test the hypothesis that the total volume of cerebral infarction in patients with right hemisphere strokes would be greater than the volume of cerebral infarction in patients with left hemisphere strokes who have similar NIHSS scores. The volume of stroke was determined by computerized image analysis of CT films and CT images stored on computer tape and optical disks. Cube-root transformation of lesion volume was performed for each CT. Transformed lesion volume was analyzed in a logistic regression model to predict volume of stroke by NIHSS score for each hemisphere. Spearman rank correlation was used to determine the relation between the NIHSS score and lesion volume.]...[The volume for right hemisphere stroke was statistically greater than the volume for left hemisphere strokes, adjusting for the baseline NIHSS (P<0. 001). For each 5-point category of the NIHSS score<20, the median volume of right hemisphere strokes was approximately double the median volume of left hemisphere strokes. For example, for patients with a left hemisphere stroke and a 24-hour NIHSS score of 16 to 20, the median volume of cerebral infarction was 48 mL (interquartile range 14 to 111 mL) as compared with 133 mL (interquartile range 81 to 208 mL) for patients with a right hemisphere stroke (P<0.001). The median volume of a right hemisphere stroke was roughly equal to the median volume of a left hemisphere stroke in the next highest 5-point category of the NIHSS. The Spearman rank correlation between the 24-hour NIHSS score and 3-month lesion volume was 0.72 for patients with left hemisphere stroke and 0.71 for patients with right hemisphere stroke.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: For a given NIHSS score, the median volume of right hemisphere strokes is consistently larger than the median volume of left hemisphere strokes. The clinical implications of our finding need further exploration. ##Answer: yes

Question: Can a Novel Surgical Approach to the Temporomandibular Joint Improve Access and Reduce Complications? Context: [This clinical study investigated whether the vascular-guided multilayer preauricular approach (VMPA) to the temporomandibular joint (TMJ) could improve access and decrease complications.]...[This retrospective evaluation consisted of a consecutive series of patients who underwent TMJ surgeries through the VMPA from January through December 2013. Patients with a history of TMJ surgery were excluded. Clinical data, including operating times, subjective complaints of incision scars, functional conditions of the auriculotemporal nerve and facial nerve, and other complications, were recorded and analyzed. All patients in this study were followed for at least 6 months.]...[All patients (606 joints) had successful TMJ surgeries through the VMPA. All incisions healed favorably with an uneventful recovery. No patient developed permanent weakness of the facial nerve or other severe complications.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The VMPA can provide direct access and favorable visibility to the TMJ region and yield good esthetic and functional results. The VMPA can be considered the approach of choice for common TMJ surgeries. ##Answer: yes

Question: Young-Burgess classification of pelvic ring fractures: does it predict mortality, transfusion requirements, and non-orthopaedic injuries? Context: [The objectives of this study were to evaluate the ability of the Young-Burgess classification system to predict mortality, transfusion requirements, and nonorthopaedic injuries in patients with pelvic ring fractures and to determine whether mortality rates after pelvic fractures have changed over time.]...[Retrospective review.]...[Level I trauma center.]...[One thousand two hundred forty-eight patients with pelvic fractures during a 7-year period.]...[None.]...[Mortality at index admission, transfusion requirement during first 24 hours, and presence of nonorthopaedic injuries as a function of Young-Burgess pelvic classification type. Mortality compared with historic controls.]...[Despite a relatively large sample size, the ability of the Young-Burgess system to predict mortality only approached statistical significance (P = 0.07, Kruskal-Wallis). The Young-Burgess system differentiated transfusion requirements--lateral compression Type 3 (LC3) and anteroposterior compression Types 2 (APC2) and 3 (APC3) fractures had higher transfusion requirements than did lateral compression Type 1 (LC1), anteroposterior compression Type 1 (APC1), and vertical shear (VS) (P<0.05)--but was not as useful at predicting head, chest, or abdomen injuries. Dividing fractures into stable and unstable types allowed the system to predict mortality rates, abdomen injury rates, and transfusion requirements. Overall mortality in the study group was 9.1%, unchanged from original Young-Burgess studies 15 years previously (P = 0.3).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The Young-Burgess system is useful for predicting transfusion requirements. For the system to predict mortality or nonorthopaedic injuries, fractures must be divided into stable (APC1, LC1) and unstable (APC2, APC3, LC2, LC3, VS, combined mechanism of injury) types. LC1 injuries are very common and not always benign (overall mortality rate, 8.2%). ##Answer: maybe

Question: Is vitamin D deficiency a feature of pediatric celiac disease? Context: [Celiac disease (CD) is an autoimmune enteropathy characterized by villus atrophy and malabsorption of essential nutrients. Vitamin D deficiency has been described in autoimmune diseases, but its status in prepubertal children with CD has not been adequately studied.]...[To determine the vitamin D status of prepubertal children with CD.]...[A retrospective study of prepubertal children aged 3-12 years with CD (n=24) who were compared to prepubertal, non-CD children of the same age (n=50). Children were included in the study if they had a diagnosis of CD by intestinal biopsy, and were not on a gluten-free diet (GFD). Patients were excluded if they had diseases of calcium or vitamin D metabolism, or were receiving calcium or vitamin D supplementation or had other autoimmune diseases. All subjects had their serum 25-hydroxyvitamin D [25(OH)D] level measured.]...[There was no difference in 25(OH)D level between the CD and non-CD children (27.58 +/- 9.91 versus 26.20 +/- 10.45, p = 0.59). However, when the patients were subdivided into obese and non-obese groups, the non-obese CD patients had a significantly higher 25(OH)D level than the obese normal children (28.39 +/- 10.26 versus 21.58 +/- 5.67, p = 0.009). In contrast, there was no difference in 25(OH)D level between non-obese CD patients and non-obese normal children (28.39 +/- 10.26 versus 30.64 +/-12.08, p = 0.52). The season of 25(OH)D measurement was not a significant confounder (p =0.7).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Our data showed no difference in 25(OH) D levels between normal children and those with CD when adjusted for body mass index. ##Answer: no

Question: Is unsafe sexual behaviour increasing among HIV-infected individuals? Context: [The number of new diagnoses of HIV infection is rising in the northwestern hemisphere and it is becoming increasingly important to understand the mechanisms behind this trend.]...[To evaluate whether reported unsafe sexual behaviour among HIV- infected individuals is changing over time.]...[Participants in the Swiss HIV Cohort Study were asked about their sexual practices every 6 months for 3 years during regular follow-up of the cohort beginning on 1 April 2000.]...[: Logistic regression models were fit using generalized estimating equations assuming a constant correlation between responses from the same individual.]...[At least one sexual behaviour questionnaire was obtained for 6545 HIV-infected individuals and the median number of questionnaires completed per individual was five. There was no evidence of an increase in reported unsafe sex over time in this population [odds ratio (OR), 1.0; 95% confidence interval (CI), 0.96-1.05]. Females (OR, 1.38; 95% CI, 1.19-1.60), 15-30 year olds (OR, 1.26; 95% CI, 1.09-1.47), those with HIV-positive partners (OR, 12.58; 95% CI, 10.84-14.07) and those with occasional partners (OR, 3.25; 95% CI, 2.87-3.67) were more likely to report unsafe sex. There was no evidence of a response bias over time, but individuals were less willing to leave questions about their sexual behaviour unanswered or ambiguous (OR, 0.93; 95% CI, 0.90-0.97).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: There was no evidence of a trend in unsafe sex behaviour over time. However, several subgroups were identified as being more likely to report unsafe sex and should be targeted for specific interventions. ##Answer: no

Question: Cholestasis associated with small bowel atresia: do we always need to investigate? Context: [Cholestasis occurs frequently in patients with small bowel atresia (SBA) and is often attributed to prolonged parental nutrition. When severe or prolonged, patients may undergo unnecessary intensive or invasive investigation. We characterized cholestasis and analyzed the pertinence of investigating this patient population.]...[With Research Ethics Board approval, patients with SBA between 1996 and 2005 were retrospectively reviewed. Demographics, location of atresia, operative findings, complications, investigations, resumption of feeding, duration of prolonged parental nutrition, and follow-up information were examined. Cholestasis was evaluated for incidence, severity, and evolution.]...[Fifty-five patients (29 male, 26 female), with a median gestational age and birth weight of 36 weeks and 2025 g, respectively, were reviewed. Care was withdrawn for 2 patients before repair. For the remaining 53 patients, SBA were duodenal atresia in 18, jejunoileal atresia in 32, and multiple atresia in 3. Of 53, 24 (45%) patients developed cholestasis postoperatively (direct/total bilirubin>20%). All patients with short bowel (4) and 60% (6/10) of patients with a delay of enteral feeding more than 14 days postoperatively had cholestasis. Ten patients (36%) proceeded with in-depth evaluations for cholestasis, with 8 (28%) undergoing liver biopsy. No patient had biliary atresia. No deaths were related to isolated cholestasis/cirrhosis. Cholestasis resolved spontaneously in all the survivors.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Small bowel atresia is frequently associated with postoperative cholestasis that will resolve with time. We recommend a more selective and expectant approach to SBA-associated cholestasis to minimize unnecessary investigations. ##Answer: no

Question: Are financial incentives cost-effective to support smoking cessation during pregnancy? Context: [To investigate the cost-effectiveness of up to £400 worth of financial incentives for smoking cessation in pregnancy as an adjunct to routine health care.]...[Cost-effectiveness analysis based on a Phase II randomized controlled trial (RCT) and a cost-utility analysis using a life-time Markov model.]...[The RCT was undertaken in Glasgow, Scotland. The economic analysis was undertaken from the UK National Health Service (NHS) perspective.]...[A total of 612 pregnant women randomized to receive usual cessation support plus or minus financial incentives of up to £400 vouchers (US $609), contingent upon smoking cessation.]...[Comparison of usual support and incentive interventions in terms of cotinine-validated quitters, quality-adjusted life years (QALYs) and direct costs to the NHS.]...[The incremental cost per quitter at 34-38 weeks pregnant was £1127 ($1716).This is similar to the standard look-up value derived from Stapleton&West's published ICER tables, £1390 per quitter, by looking up the Cessation in Pregnancy Incentives Trial (CIPT) incremental cost (£157) and incremental 6-month quit outcome (0.14). The life-time model resulted in an incremental cost of £17 [95% confidence interval (CI) = -£93, £107] and a gain of 0.04 QALYs (95% CI = -0.058, 0.145), giving an ICER of £482/QALY ($734/QALY). Probabilistic sensitivity analysis indicates uncertainty in these results, particularly regarding relapse after birth. The expected value of perfect information was £30 million (at a willingness to pay of £30 000/QALY), so given current uncertainty, additional research is potentially worthwhile.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Financial incentives for smoking cessation in pregnancy are highly cost-effective, with an incremental cost per quality-adjusted life years of £482, which is well below recommended decision thresholds. ##Answer: yes

Question: Can medical students contribute to quality assurance programmes in day surgery? Context: [Health care delivery has undertaken a major shift from inpatient management to ambulatory surgical care with increasing emphasis on quality assurance (QA) processes. Educational opportunities for medical undergraduate programmes are being sought in the day surgery environment. Our study was undertaken to explore ways in which senior medical students can actively contribute to QA processes as part of an undergraduate day surgery educational programme.]...[Health care delivery has undertaken a major shift from inpatient management to ambulatory surgical care with increasing emphasis on quality assurance (QA) processes. Educational opportunities for medical undergraduate programmes are being sought in the day surgery environment. Our study was undertaken to explore ways in which senior medical students can actively contribute to the QA processes as part of an undergraduate day surgery educational programme.]...[Fifty-nine final year medical students followed allocated patients with common surgical conditions through all phases of the day surgery process. Students kept records about each case in a log book and also presented their cases at weekly Problem Based Learning tutorials. An audit of student log books and review of tutorial records was conducted for the 1996 and 1997 academic years, in order to evaluate student contribution to QA.]...[Students followed 621 cases, representing a sampling of 14. 1% day surgery cases. Categories of problems highlighted by students included inappropriate patient and procedure selection, inadequate pain management, discharge, communication and resource issues. Students made a number of recommendations including the development of multilingual videotapes and patient information sheets for non-English speaking patients, avoidance of bilateral surgical procedures and improved links with local medical officers. They also developed new guidelines and protocols.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Our study confirms that students are able to identify QA issues and propose solutions. We recommend that students have a formally recognized place in day surgery QA programmes, to close the QA loop and to adequately prepare them for medical practice in the 21st century. ##Answer: yes

Question: Measurement of head and neck paragangliomas: is volumetric analysis worth the effort? Context: [The aim of this study was to assess the reproducibility of different measurement methods and define the most workable technique for measuring head and neck paragangliomas, to determine the best method for evaluating tumour growth. The evaluation of tumour growth is vital for a 'wait-and-scan' policy, a management strategy that became increasingly important.]...[Method comparison study.]...[Thirty tumours, including carotid body, vagal body, jugulotympanic tumours and conglomerates of multiple tumours, were measured in duplicate, using linear dimensions, manual area tracing and an automated segmentation method.]...[Reproducibility was assessed using the Bland-Altman method.]...[The smallest detectable difference using the linear dimension method was 11% for carotid body and 27% for vagal body tumours, compared with 17% and 20% for the manual area tracing method. Due to the irregular shape of paragangliomas in the temporal bone and conglomerates, the manual area tracing method showed better results in these tumours (26% and 8% versus 54% and 47%). The linear dimension method was significantly faster (median 4.27 versus 18.46 minutes, P<0.001). The automatic segmentation method yielded smallest detectable differences between 39% and 75%, and although fast (2.19 ± 1.49 minutes), it failed technically.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Due to a relatively good reproducibility, fast and easy application, we found the linear dimension method to be the most pragmatic approach for evaluation of growth of carotid and vagal body paragangliomas. For jugulotympanic tumours, the preferred method is manual area tracing. However, volumetric changes of these tumours may be of less clinical importance than changes in relation to surrounding anatomical structures. ##Answer: yes

Question: Three-dimensional ultrasound-validated large-core needle biopsy: is it a reliable method for the histological assessment of breast lesions? Context: [The use of three-dimensional (3D) ultrasound may help to determine the exact position of the needle during breast biopsy, thereby reducing the number of core samples that are needed to achieve a reliable histological diagnosis. The aim of this study was to demonstrate the efficacy of 3D ultrasound-validated large-core needle biopsy (LCNB) of the breast.]...[A total of 360 core needle biopsies was obtained from 169 breast lesions in 146 patients. Additional open breast biopsy was performed in 111 women (127/169 breast lesions); the remaining 42 lesions were followed up for at least 24 months. 3D ultrasound visualization of the needle in the postfiring position was used to classify the biopsy as central, marginal or outside the lesion. Based on this classification it was decided whether another sample had to be obtained.]...[A median of two core samples per lesion provided for all the lesions a sensitivity for malignancy of 96.9%, specificity of 100%, false-positive rate of 0% and false-negative rate of 3.1%, and for the excised lesions a sensitivity of 96.5%, specificity of 100%, false-positive rate of 0%, false-negative rate of 3.5% and an underestimation rate of 3.4%.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: 3D ultrasound validation of the postfiring needle position is an efficient adjunct to ultrasound-guided LCNB. The advantages of 3D ultrasound validation are likely to include a reduction in the number of core samples needed to achieve a reliable histological diagnosis (and a possible reduction in the risk of tumor cell displacement), reduced procedure time and lower costs. ##Answer: yes

Question: Can bone thickness and inter-radicular space affect miniscrew placement in posterior mandibular sites? Context: [The proper angle of miniscrew insertion is important for cortical anchorage, patient safety, and biomechanical control. The purposes of this study are to report the alveolar process thickness and inter-radicular space in the posterior region of the mandible, to assess the impact of different miniscrew insertion angle protocols, and to identify differences between the genders or types of malocclusion.]...[In this retrospective study, 100 individuals were selected for orthodontic treatment at a radiology clinic. Cone-beam computed tomography data were imported into 3-dimensional software. The predictor variable was the location in the mandible and insertion angle. The demographic variables collected included age, gender, and malocclusion (Angle Classes I and II). The primary outcome variables were bone thickness and inter-radicular space. The inter-radicular spaces were evaluated 5 mm from the cement-enamel junction. The bone thicknesses were taken at 45°, 60°, and 90° in relation to the alveolar ridge, simulating a miniscrew insertion. These factors were evaluated for sexual dimorphism and malocclusion (Angle Classes I and II). Sexual dimorphism and malocclusion were evaluated with t tests. To compare the inter-radicular space and the thickness of bone between areas, an analysis of variance for repeated measures was used.]...[The sample was composed of 100 patients with a mean age of 17.4 ± 6.74 years. There were 61 female and 39 male patients and 60 Class I and 40 Class II molar relationships. The inter-radicular space ranged from 2.46 to 3.31 mm, and alveolar bone thickness ranged from 8.01 to 13.77 mm. The thickness tended to decrease with the increase in insertion angle from 45° to 90°. No significant differences between the genders or types of malocclusion were found.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The results of this study suggest that the safest areas for the placement of miniscrews are between the first and second premolars and between the first and second molars, regardless of the angle of insertion. ##Answer: no

Question: Do general practice selection scores predict success at MRCGP? Context: [Selection into general practice training is undertaken using a competency based approach. The clear advantage of this approach over traditional methods has been demonstrated through evaluation of its validity and reliability. However, the relationship between selection and performance in the Royal College of General Practitioner examinations (MRCGP) has yet to be explored. The MRCGP comprises of an applied knowledge test (AKT), a clinical skills assessment (CSA) and workplace-based assessments (WPBA).AIM: To explore the predictive validity of general practice selection scores using the AKT and CSA elements of the MRCGP as a final outcome measure.]...[This study carried out a retrospective analysis of 101 trainees from the Wales Deanery who were successfully selected on to general practice training in 2007. Selection data consisted of an overall selection score as well as scores from each individual stage of selection. Correlation was used to explore associations between selection scores and examination scores.]...[The score for overall performance at selection achieved statistically significant correlation with examination performance (r = 0.491 for the AKT and r = 0.526 for the CSA, P<0.01).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The general practice selection process is predictive of future performance in the MRCGP. ##Answer: yes

Question: The Deformity Angular Ratio: Does It Correlate With High-Risk Cases for Potential Spinal Cord Monitoring Alerts in Pediatric 3-Column Thoracic Spinal Deformity Corrective Surgery? Context: [A retrospective analysis.]...[The purpose of this study was to determine whether the deformity angular ratio (DAR) can reliably assess the neurological risks of patients undergoing deformity correction.]...[Identifying high-risk patients and procedures can help ensure that appropriate measures are taken to minimize neurological complications during spinal deformity corrections. Subjectively, surgeons look at radiographs and evaluate the riskiness of the procedure. However, 2 curves of similar magnitude and location can have significantly different risks of neurological deficit during surgery. Whether the curve spans many levels or just a few can significantly influence surgical strategies. Lenke et al have proposed the DAR, which is a measure of curve magnitude per level of deformity.]...[The data from 35 pediatric spinal deformity correction procedures with thoracic 3-column osteotomies were reviewed. Measurements from preoperative radiographs were used to calculate the DAR. Binary logistic regression was used to model the relationship between DARs (independent variables) and presence or absence of an intraoperative alert (dependent variable).]...[In patients undergoing 3-column osteotomies, sagittal curve magnitude and total curve magnitude were associated with increased incidence of transcranial motor evoked potential changes. Total DAR greater than 45° per level and sagittal DAR greater than 22° per level were associated with a 75% incidence of a motor evoked potential alert, with the incidence increasing to 90% with sagittal DAR of 28° per level.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: In patients undergoing 3-column osteotomies for severe spinal deformities, the DAR was predictive of patients developing intraoperative motor evoked potential alerts. Identifying accurate radiographical, patient, and procedural risk factors in the correction of severe deformities can help prepare the surgical team to improve safety and outcomes when carrying out complex spinal corrections. ##Answer: yes

Question: Does age moderate the effect of personality disorder on coping style in psychiatric inpatients? Context: [To examine age-related differences in the relationship between personality and coping strategies in an Australian population of psychiatric inpatients.]...[Consenting eligible adults (N=238) from 18-100 years of age consecutively admitted to inpatient psychiatry units were assessed using the SCID I and II, the Coping Orientations to Problems Experienced Scale (COPE), the Brief Psychiatric Rating Scale (BPRS), the Global Assessment of Functioning Scale (GAF), the Social and Occupational Functioning Assessment Scale (SOFAS), the 12 Item Short-Form Heath Survey (SF12), the Sarason Social Support Questionnaire, and the NEO Five Factor Inventory (NEO-FFI) (cognitively impaired, and non-English speaking patients were excluded).]...[Older adults reported less symptomatology than younger patients and younger patients described more personality dysfunction than older patients. As assessed by the COPE, older adults reported lower levels of dysfunctional coping strategies than younger adults. Personality traits, social supports, gender, and age predicted coping strategies, while Axis I diagnosis, education, personality disorder, and symptom severity were not significant predictors of coping strategies.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: This study found that influences on coping were multifactorial and moderated by age. These factors have implications for interventions designed to enhance coping strategies. ##Answer: yes

Question: Autoxidation products of both carbohydrates and lipids are increased in uremic plasma: is there oxidative stress in uremia? Context: [Advanced glycation end products (AGEs), formed by non-enzymatic glycation and oxidation (glycoxidation) reactions, have been implicated in the pathogenesis of several diseases, including normoglycemic uremia. AGE research in uremia has focused on the accumulation of carbohydrate-derived adducts generated by the Maillard reaction. Recent studies, however, have demonstrated that one AGE, the glycoxidation product carboxymethyllysine (CML), could be derived not only from carbohydrates but also from oxidation of polyunsaturated fatty acids in vitro, raising the possibility that both carbohydrate and lipid autoxidation might be increased in uremia.]...[To address this hypothesis, we applied gas chromatography-mass spectrometry and high performance liquid chromatography to measure protein adducts formed in uremic plasma by reactions between carbonyl compounds and protein amino groups: pentosidine derived from carbohydrate-derived carbonyls, malondialdehyde (MDA)-lysine derived from lipid-derived carbonyls, and CML originating possibly from both sources.]...[All three adducts were elevated in uremic plasma. Plasma CML levels were mainly (>95%) albumin bound. Their levels were not correlated with fructoselysine levels and were similar in diabetic and non-diabetic patients on hemodialysis, indicating that their increase was not driven by glucose. Pentosidine and MDA-lysine were also increased in plasma to the same extent in diabetic and non-diabetic hemodialysis patients. Statistical analysis indicated that plasma levels of CML correlated weakly (P<0.05) with those of pentosidine and MDA-lysine, but that pentosidine and MDA-lysine varied independently (P>0.5).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: These data suggest that the increased levels of AGEs in blood, and probably in tissues, reported in uremia implicate a broad derangement in non-enzymatic biochemistry involving alterations in autoxidation of both carbohydrates and lipids. ##Answer: yes

Question: Can 'high-risk' human papillomaviruses (HPVs) be detected in human breast milk? Context: [Using polymerase chain reaction techniques, we evaluated the presence of HPV infection in human breast milk collected from 21 HPV-positive and 11 HPV-negative mothers.]...[Of the 32 studied human milk specimens, no 'high-risk' HPV 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58 or 58 DNA was detected.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: This preliminary case-control study indicates the absence of mucosal 'high-risk' HPV types in human breast milk. ##Answer: no

Question: Quaternary cytoreductive surgery in ovarian cancer: does surgical effort still matter? Context: [To evaluate surgical outcome and survival benefit after quaternary cytoreduction (QC) in epithelial ovarian cancer (EOC) relapse.]...[We systematically evaluated all consecutive patients undergoing QC in our institution over a 12-year period (October 2000-January 2012). All relevant surgical and clinical outcome parameters were systematically assessed.]...[Forty-nine EOC patients (median age: 57; range: 28-76) underwent QC; in a median of 16 months (range:2-142) after previous chemotherapy. The majority of the patients had an initial FIGO stage III (67.3%), peritoneal carcinomatosis (77.6%) and no ascites (67.3%). At QC, patients presented following tumour pattern: lower abdomen 85.7%; middle abdomen 79.6% and upper abdomen 42.9%. Median duration of surgery was 292 min (range: a total macroscopic tumour clearance could be achieved. Rates of major operative morbidity and 30-day mortality were 28.6% and 2%, respectively.Mean follow-up from QC was 18.41 months (95% confidence interval (CI):12.64-24.18) and mean overall survival (OS) 23.05 months (95% CI: 15.5-30.6). Mean OS for patients without vs any tumour residuals was 43 months (95% CI: 26.4-59.5) vs 13.4 months (95% CI: 7.42-19.4); P=0.001. Mean OS for patients who received postoperative chemotherapy (n=18; 36.7%) vs those who did not was 40.5 months (95% CI: 27.4-53.6) vs 12.03 months (95% CI: 5.9-18.18); P<0.001.Multivariate analysis indentified multifocal tumour dissemination to be of predictive significance for incomplete tumour resection, higher operative morbidity and lower survival, while systemic chemotherapy subsequent to QC had a protective significant impact on OS. No prognostic impact had ascites, platinum resistance, high grading and advanced age.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Even in this highly advanced setting of the third EOC relapse, maximal therapeutic effort combining optimal surgery and chemotherapy appear to significantly prolong survival in a selected patients 'group'. ##Answer: yes

Question: Chemotherapy and survival in advanced non-small cell lung carcinoma: is pneumologists' skepticism justified? Context: [Few studies have assessed whether the advantage chemotherapy has been shown to have in treating advanced non-small lung carcinoma in clinical trials is transferrable to normal health care activity. This could explain the skepticism of a large number of pneumologists towards this treatment. The objective of our study was to analyze prognostic factors related to survival and to see whether cytostatic treatment was an independent predictor.]...[Patients enrolled in the study had been diagnosed with non-small cell carcinoma in stages IV or IIIB with pleural or N2-N3 involvement and with a performance status of 2 or below according to the Eastern Cooperative Oncology Group (ECOG). Survival was analyzed with regard to the following variables: age, sex, comorbidity, weight loss, laboratory test results, histological type, ECOG score, TNM staging, and treatment. The Student t test, the chi(2) test, the Kaplan-Meier method, the log-rank test, and Cox regression analysis were used in the statistical analysis.]...[We enrolled 190 patients (157 men and 33 women) with a mean (SD) age of 61.75 (10.85) years (range, 33-85 years). Of these patients, 144 received cytostatic treatment and 46 palliative treatment. The median survival was 31 weeks and was related to absence of weight loss (hazard ratio [HR], 1.73; 95% confidence interval [CI], 1.26-2.39; P=.001), cytostatic treatment (HR, 1.85; 95% CI, 1.25-2.76; P=.002), and ECOG score of 0 to 1 (HR, 2.84; 95% CI, 1.62-5.00; P=.0001). In patients with ECOG scores of 0 to 1, weight loss and treatment were significant prognostic factors. Survival in the ECOG 2 group was 15 weeks for patients undergoing cytostatic treatment and 11 weeks for patients with symptomatic treatment.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: In normal clinical practice, chemotherapy significantly prolongs survival in patients with performance status of less than 2, more time being gained if there is no associated weight loss. We conclude that the reluctance shown by many pneumologists toward using this treatment is not entirely justified. ##Answer: no

Question: Does topical ropivacaine reduce the post-tonsillectomy morbidity in pediatric patients? Context: [To determine whether post-operative administration of topical ropivacaine hydrochloride decreases morbidity following adenotonsillectomy.]...[Prospective, randomized, double-blind clinical trial.]...[University referral center; ENT Department.]...[Fourty one children, aged 4-16 years, undergoing tonsillectomy.]...[Patients received 1.0% ropivacaine hydrochloride soaked swabs packed in their tonsillar fossae while the control group received saline-soaked swabs. Mc Grath's face scale was used to compare the two groups in respect of pain control. Chi-square and two-tailed unpaired Student's t-tests or Mann-Whitney-U-tests were used to compare the two independent groups. As 10 we made 11 comparison between groups, for Bonferroni correction, p<0.005 was accepted as statistically significant.]...[Only first hour there was no significant pain-relieving effect seen in the ropivacaine group (p>0.05). The other hours and days there were statistically significance between the two groups (p<0.001). Also, the other post-operative parameters such as nausea, fever, vomiting, odor, bleeding, otalgia and trismus were not statistically different between the two groups. There were no complications associated with ropivacaine hydrochloride. No patients in this study suffered systemic side effects related to the use of this medication.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Locally 1.0% ropivacaine administration significantly relieves the pain of pediatric tonsillectomy and, it is a safe and effective method. High concentrations of ropivaciane may produce clinically significant pain relief. It is more effective to reduce of post-operative analgesic requirement after first hour. ##Answer: yes

Question: Is pain a clinically relevant problem in general adult psychiatry? Context: [To study the prevalence of pain and risk factors for pain in psychiatric patients in a psychiatric hospital.]...[Using a questionnaire we investigated in a cross-sectional study the prevalence of pain, duration of pain, impairment and unfitness for work due to pain in 106 patients primarily diagnosed with a psychiatric disorder in the field of general adult psychiatry. Potential risk factors were explored.]...[The point prevalence of pain was about 50%, the 6-month prevalence 75.5% and the 12-month prevalence 76.5%. The patients' most frequent complaints were low back pain, headache and shoulder and neck pain. Patients with affective disorders most frequently had pain complaints, followed by those with neurotic, stress-related and somatoform disorders and those with psychotic disorders such as schizophrenia, schizotypic and delusional disorders. Almost 10% of all patients reported pain continuing at least 3 months in the past year. Impairment and unfitness for work were related to specific psychiatric diagnosis. Statistically significant risk factors for pain were depression (OR=6.05) and the number of past admissions to psychiatric hospitals (OR=3.609).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: We found evidence that pain can be a significant clinical problem in psychiatric patients which seems to be underestimated in psychiatry. The investigated patients in general adult psychiatry are characterized by specific risk factors different from clinical subpopulations of other disciplines. ##Answer: yes

Question: Does concomitant anterior/apical repair during midurethral sling improve the overactive bladder component of mixed incontinence? Context: [Midurethral sling (MUS) can improve overactive bladder (OAB) symptoms. It is unclear if anterior/apical prolapse (AA) repair provides additional benefit. We hypothesized that women with mixed urinary incontinence (MUI) experience greater improvement in the OAB component of their symptoms after concomitant MUS and AA repair compared with MUS alone.]...[This is a retrospective cohort study of women with bothersome MUI (defined by objective stress test and validated questionnaire) undergoing MUS alone ("MUS-only") or concomitant MUS and AA repair ("MUS + AA"). Our primary outcome was the Overactive Bladder Questionnaire Symptom Severity (OAB-q SS) change score 6 weeks after surgery.]...[Of 151 women, 67 (44 %) underwent MUS-only and 84 (56 %) underwent MUS + AA. The MUS-only cohort was younger and had less severe baseline prolapse (p < 0.05 for both). Postoperative complications (predominantly UTI) occurred in 35 (23 %) patients and were similar between cohorts. For all subjects mean OAB-q SS scores significantly improved postoperatively (p < 0.05). Our primary outcome, OAB-q SS change score, showed no significant differences between cohorts (30 ± 26 MUS-only vs 25 ± 25 MUS + AA, p = 0.20), indicating similar improvements in OAB symptoms. Multivariate linear regression analysis revealed no difference in OAB-q SS change score between cohorts; however, OAB-q SS change scores were lower for women with a postoperative complication (β = -19, 95 % CI -31 to -6; p < 0.01).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: In women with bothersome MUI, concomitant AA repair does not result in additional improvement in OAB symptoms over MUS alone. Patients with postoperative complications exhibit less improvement in OAB symptoms. ##Answer: no

Question: Does the use of atypical antipsychotics as adjunctive therapy in depression result in cost savings? Context: [Several atypical antipsychotics (AAPs) are used as second-line agents for treatment resistant depression. AAPs can be expensive compared to other treatment options and can cause several side effects.]...[To estimate healthcare costs and utilization of AAPs compared to other second-line agents.]...[Observational study using Medicaid claims data (2006-2011). Subjects were depression-diagnosed adult members with at least two prescriptions of antidepressant medications followed by a second-line agent. Gamma generalized linear models (GLM) produced estimates of the difference in mean expenditures among treatment groups after adjusting for individual baseline characteristics using propensity scores. Negative binomial models produced estimates of the difference in number of hospitalizations and emergency department (ED) visits.]...[A total of 3910 members received second-line treatment. Treatment groups were AAPs (n = 2211), augmentation agents other than AAPs (n = 1008), and antidepressant switching (n = 691). AAPs resulted in higher mean adjusted pharmacy costs and higher mean adjusted total mental health-related costs. Mean adjusted total healthcare costs and number of inpatient and ED visits were not different among treatments.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The results show no evidence that AAPs used as second-line treatment for depression results in overall cost savings or lower inpatient and ED visits compared to other treatment strategies. ##Answer: no

Question: Can patients be anticoagulated after intracerebral hemorrhage? Context: [Warfarin increases both the likelihood and the mortality of intracerebral hemorrhage (ICH), particularly in patients with a history of prior ICH. In light of this consideration, should a patient with both a history of ICH and a clear indication for anticoagulation such as nonvalvular atrial fibrillation be anticoagulated? In the absence of data from a clinical trial, we used a decision-analysis model to compare the expected values of 2 treatment strategies-warfarin and no anticoagulation-for such patients.]...[We used a Markov state transition decision model stratified by location of hemorrhage (lobar or deep hemispheric). Effectiveness was measured in quality-adjusted life years (QALYs). Data sources included English language literature identified through MEDLINE searches and bibliographies from selected articles, along with empirical data from our own institution. The base case focused on a 69-year-old man with a history of ICH and newly diagnosed nonvalvular atrial fibrillation.]...[For patients with prior lobar ICH, withholding anticoagulation therapy was strongly preferred, improving quality-adjusted life expectancy by 1.9 QALYs. For patients with prior deep hemispheric ICH, withholding anticoagulation resulted in a smaller gain of 0.3 QALYs. In sensitivity analyses for patients with deep ICH, anticoagulation could be preferred if the risk of thromboembolic stroke is particularly high.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Survivors of lobar ICH with atrial fibrillation should not be offered long-term anticoagulation. Similarly, most patients with deep hemispheric ICH and atrial fibrillation should not receive anticoagulant therapy. However, patients with deep hemispheric ICH at particularly high risk for thromboembolic stroke or low risk of ICH recurrence might benefit from long-term anticoagulation. ##Answer: maybe

Question: Diagnostic and therapeutic ureteroscopy: is dilatation of ureteral meatus always necessary? Context: [To assess the feasibility and safety of diagnostic or therapeutic semirigid ureteroscopy without ureteral meatus dilatation.]...[A comparative, retrospective study was conducted of patients undergoing ureteroscopy from January 2000 to May 2008. For data analysis purposes, the population was divided into two groups based on whether ureteroscopy had been performed with (Group 1) or without (Group 2) ureteral meatus dilatation. Variables recorded included age, sex, type of procedure, surgical diagnosis, passive or active dilatation, number of stones, stone location, stone diameter, peroperative and postoperative complications, internal urinary diversion after the procedure, therapeutic success rate, operating time, and hospital stay duration. A 8-9.8 Fr Wolf semirigid ureteroscope was used. Descriptive statistics of the population and cohorts were performed, providing medians, quartiles, and limit values for non-normally distributed interval variables, and absolute and relative frequencies for categorical variables. Shapiro-Wilk's, Mann-Whitney's U, Chi-square, and Fisher's exact tests were used for statistical analysis. A value of p 2 alpha<or = 0.005 was considered statistically significant. Arcus Quickstat Biomedical 1.0 software was used.]...[Among the 306 ureteroscopies studied, 286 performed in 256 patients were analyzed. Median age was 50 years (16-83), 59% of patients were male, and elective ureteroscopy was performed in 183 patients (64%). Group 1: 191 ureteroscopies, Group 2: 95 ureteroscopies. Stone location: 149 in distal ureter, 60 in middle ureter, and 35 in proximal ureter. Sixty-nine percent of stones had sizes ranging from 5 and 10 mm. The overall success rate was 86.5%. There were 5 peroperative and 22 postoperative complications, with no statistically significant differences between the groups.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: In selected cases, ureteroscopy may be performed without ureteral meatus dilatation with success and morbidity rates similar to when the procedure is performed with meatal dilatation. ##Answer: no

Question: Does managed care enable more low income persons to identify a usual source of care? Context: [By requiring or encouraging enrollees to obtain a usual source of care, managed care programs hope to improve access to care without incurring higher costs.]...[(1) To examine the effects of managed care on the likelihood of low-income persons having a usual source of care and a usual physician, and; (2) To examine the association between usual source of care and access.]...[Cross-sectional survey of households conducted during 1996 and 1997.]...[A nationally representative sample of 14,271 low-income persons.]...[Usual source of care, usual physician, managed care enrollment, managed care penetration.]...[High managed care penetration in the community is associated with a lower likelihood of having a usual source of care for uninsured persons (54.8% vs. 62.2% in low penetration areas) as well as a lower likelihood of having a usual physician (60% vs. 72.8%). Managed care has only marginal effects on the likelihood of having a usual source of care for privately insured and Medicaid beneficiaries. Having a usual physician substantially reduces unmet medical needs for the insured but less so for the uninsured.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Having a usual physician can be an effective tool in improving access to care for low-income populations, although it is most effective when combined with insurance coverage. However, the effectiveness of managed care in linking more low-income persons to a medical home is uncertain, and may have unintended consequences for uninsured persons. ##Answer: maybe

Question: Knee extensor strength, dynamic stability, and functional ambulation: are they related in Parkinson's disease? Context: [To evaluate the relationship between knee extensor strength, postural stability, functional ambulation, and disease severity in Parkinson's disease (PD).]...[A cohort study.]...[University research laboratory.]...[Patients (N=44) with idiopathic PD.]...[Not applicable.]...[Participants were evaluated on their isokinetic knee extensor strength. Additionally, participants completed an assessment of their postural stability (Functional Reach Test for static stability and a dynamic postural stability assessment as measured by the center of pressure-center of mass moment arm during gait initiation). Participants also underwent an evaluation of their functional ambulation as measured by a 6-minute walk test. Lastly, participants were evaluated by a neurologist specially trained in movement disorders to assess neurologic status and disease severity using the Unified Parkinson's Disease Rating Scale and the Hoehn and Yahr disability score.]...[Knee extensor strength positively correlated with dynamic postural stability and negatively correlated with disease severity. Further, dynamic postural stability was negatively correlated to disease severity and positively correlated with functional ambulation in this cohort of patients with PD (P<.05). The results also suggest that the Functional Reach Test may be a valuable assessment tool to examine postural stability in PD.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: These findings suggest a malleable relationship between knee extensor strength, dynamic stability, and disease severity in PD. Although strength is only one piece of the puzzle in the functional outcome of PD, these findings may assist clinicians in designing appropriate interventions aimed at increasing function and decreasing fall risk in PD. ##Answer: yes

Question: Is distance to provider a barrier to care for medicaid patients with breast, colorectal, or lung cancer? Context: [Distance to provider might be an important barrier to timely diagnosis and treatment for cancer patients who qualify for Medicaid coverage. Whether driving time or driving distance is a better indicator of travel burden is also of interest.]...[Driving distances and times from patient residence to primary care provider were calculated for 3,917 breast, colorectal (CRC) and lung cancer Medicaid patients in Washington State from 1997 to 2003 using MapQuest.com. We fitted regression models of stage at diagnosis and time-to-treatment (number of days between diagnosis and surgery) to test the hypothesis that travel burden is associated with timely diagnosis and treatment of cancer.]...[Later stage at diagnosis for breast cancer Medicaid patients is associated with travel burden (OR = 1.488 per 100 driving miles, P= .037 and OR = 1.270 per driving hour, P= .016). Time-to-treatment after diagnosis of CRC is also associated with travel burden (14.57 days per 100 driving miles, P= .002 and 5.86 days per driving hour, P= .018).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Although travel burden is associated with timely diagnosis and treatment for some types of cancer, we did not find evidence that driving time was, in general, better at predicting timeliness of cancer diagnosis and treatment than driving distance. More intensive efforts at early detection of breast cancer and early treatment of CRC for Medicaid patients who live in remote areas may be needed. ##Answer: no

Question: Can folic acid protect against congenital heart defects in Down syndrome? Context: [Several studies have suggested a protective effect of folic acid (FA) on congenital heart anomalies. Down syndrome (DS) infants are known to have a high frequency of heart anomalies. Not all children with DS suffer from heart anomalies, which raises the question whether maternal factors might affect the risk of these anomalies. Our objectives were to investigate whether first-trimester FA use protects against heart anomalies among DS children.]...[Women with liveborn DS children participating in the Slone Epidemiology Center Birth Defects Study between 1976 and 1997 were included. We performed case-control analyses using DS, with heart anomalies as cases and DS, without heart anomalies as controls. Subanalyses were performed for defects that have been associated with FA in non-DS populations (conotruncal, ventricular septal [VSD]) and for those that are associated with DS (ostium secundum type atrial septal defects [ASD]and endocardial cushion defects [ECD]). Exposure was defined as the use of any FA-containing product for an average of at least 4 days per week during the first 12 weeks of pregnancy, whereas no exposure was defined as no use of FA in these 12 weeks.]...[Of the 223 cases, 110 (49%) were exposed versus 84 (46%) of the 184 controls. After adjustment for possible confounders, no protective effect of FA was found on heart anomalies overall (OR 0.95, 95% CI: 0.61-1.47) nor separately for conotruncal defects, VSDs, ASDs, or ECDs.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Our study does not show a protective effect of FA on heart anomalies among infants with DS. ##Answer: no

Question: Are there mental health differences between francophone and non-francophone populations in manitoba? Context: [Francophones may experience poorer health due to social status, cultural differences in lifestyle and attitudes, and language barriers to health care. Our study sought to compare mental health indicators between Francophones and non-Francophones living in the province of Manitoba.]...[Two populations were used: one from administrative datasets housed at the Manitoba Centre for Health Policy and the other from representative survey samples. The administrative datasets contained data from physician billings, hospitalizations, prescription drug use, education, and social services use, and surveys included indicators on language variables and on self-rated health.]...[Outside urban areas, Francophones had lower rates of diagnosed substance use disorder (rate ratio [RR] = 0.80; 95% CI 0.68 to 0.95) and of suicide and suicide attempts (RR = 0.59; 95% CI 0.43 to 0.79), compared with non-Francophones, but no differences were found between the groups across the province in rates of diagnosed mood disorders, anxiety disorders, dementia, or any mental disorders after adjusting for age, sex, and geographic area. When surveyed, Francophones were less likely than non-Francophones to report that their mental health was excellent, very good, or good (66.9%, compared with 74.2%).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The discrepancy in how Francophones view their mental health and their rates of diagnosed mental disorders may be related to health seeking behaviours in the Francophone population. Community and government agencies should try to improve the mental health of this population through mental health promotion and by addressing language and cultural barriers to health services. ##Answer: maybe

Question: Does type 1 diabetes mellitus affect Achilles tendon response to a 10 km run? Context: [Achilles tendon structure deteriorates 2-days after maximal loading in elite athletes. The load-response behaviour of tendons may be altered in type 1 diabetes mellitus (T1DM) as hyperglycaemia accelerates collagen cross-linking. This study compared Achilles tendon load-response in participants with T1DM and controls.]...[Achilles tendon structure was quantified at day-0, day-2 and day-4 after a 10 km run. Ultrasound tissue characterisation (UTC) measures tendon structural integrity by classifying pixels as echo-type I, II, III or IV. Echo-type I has the most aligned collagen fibrils and IV has the least.]...[Participants were 7 individuals with T1DM and 10 controls. All regularly ran distances greater than 5 km and VISA-A scores indicated good tendon function (T1DM = 94 ± 11, control = 94 ± 10). There were no diabetic complications and HbA1c was 8.7 ± 2.6 mmol/mol for T1DM and 5.3 ± 0.4 mmol/mol for control groups. Baseline tendon structure was similar in T1DM and control groups - UTC echo-types (I-IV) and anterior-posterior thickness were all p > 0.05. No response to load was seen in either T1DM or control group over the 4-days post exercise.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Active individuals with T1DM do not have a heightened Achilles tendon response to load, which suggests no increased risk of tendon injury. We cannot extrapolate these findings to sedentary individuals with T1DM. ##Answer: no

Question: Fragility of the esophageal mucosa: a pathognomonic endoscopic sign of primary eosinophilic esophagitis? Context: [Primary eosinophilic esophagitis, a chronic inflammatory disorder of the esophagus, evokes recurrent dysphagia. Endoscopy is often unremarkable, and no consensus exists regarding management of resultant dysphagia. The response of a series of patients with primary eosinophilic esophagitis to dilation is reported together with a description of a possibly pathognomonic sign: fragile esophageal mucosa, for which the term "crêpe-paper" mucosa is introduced.]...[Five men underwent endoscopy because of dysphagia confirmed (clinically, endoscopically, and histologically) to be caused by primary eosinophilic esophagitis and were treated by bouginage.]...[All patients had extremely fragile, inelastic, and delicate mucosa, which tore easily even with minor trauma. After the procedure, patients remained asymptomatic for 3 to 24 months.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Primary eosinophilic esophagitis is characterized by fragile esophageal mucosa that readily tears in response to minor trauma during otherwise uneventful diagnostic endoscopy. This "crêpe-paper" sign may alert endoscopists to the presence of the disease when other mucosal alterations are lacking. Dilation is effective for patients with symptoms with minimal morbidity, despite development of disquieting lesions in response to the procedure. ##Answer: yes

Question: Does cup-cage reconstruction with oversized cups provide initial stability in THA for osteoporotic acetabular fractures? Context: [The incidence of acetabular fractures in osteoporotic patients is increasing. Immediate total hip arthroplasty (THA) has potential advantages, but achieving acetabular component stability is challenging and, at early followup, reported revision rates for loosening are high.QUESTIONS/]...[This study measured acetabular component stability and the initial surface contact achieved between the acetabular component and unfractured region of the pelvis after THA using an oversized acetabular component and cup-cage reconstruction.]...[Between November 2011 and November 2013, we treated 40 acute acetabular fractures in patients older than 70 years of age. Of these, 12 (30%) underwent immediate THA using an oversized acetabular component with screws inserted only into the ilium and a cup-cage construct. Postoperatively all patients were mobilized without weightbearing restrictions. Indications for immediate THA after acetabular fractures were displaced articular comminution deemed unreducible. Eleven of the 12 were prospectively studied to evaluate the initial stability of the reconstructions using radiostereometric analysis. One of the patients died of a pulmonary embolism after surgery, and the remaining 10 (median age, 81 years; range, 72-86 years) were studied. Of these, five were analyzed at 1 year and five were analyzed at 2 years. Acetabular component migration was defined as acceptable if less than the limits for primary THA that predict later loosening (1.76 mm of proximal migration and 2.53° of sagittal rotation). The contact surface between the acetabular component and ilium in direct continuity with the sacroiliac joint, and the ischium and pubis in direct continuity with the symphysis pubis, was measured on postoperative CT scans.]...[At 1 year the median proximal migration was 0.83 mm (range, 0.09-5.13 mm) and sagittal rotation was 1.3° (range, 0.1°-7.4°). Three of the 10 components had migration above the suggested limits for primary THA at 1 year postoperatively. The contact surface achieved at surgery between the acetabular component and pelvis ranged from 11 to 17 cm(2) (15%-27% of each component).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The majority of acetabular components in this cohort were stable despite the small contact surface achieved between the component and pelvic bone. Three of 10 migrated in excess of the limits that predict later loosening in primary THA but it remains to be seen whether these limits apply to this selected group of frail osteoporotic patients. We continue to use this technique routinely to treat patients with the same indications, but since the analysis of these data we have added screw fixation of the acetabular component to the ischial tuberosity and the superior pubic ramus. ##Answer: yes

Question: Pulmonary valve replacement in adults late after repair of tetralogy of fallot: are we operating too late? Context: [The purpose of this study is to evaluate right ventricular (RV) volume and function after pulmonary valve replacement (PVR) and to address the issue of optimal surgical timing in these patients.]...[Chronic pulmonary regurgitation (PR) following repair of tetralogy of Fallot (TOF) leads to RV dilation and an increased incidence of sudden cardiac death in adult patients.]...[We studied 25 consecutive adult patients who underwent PVR for significant PR late after repair of TOF. Radionuclide angiography was performed in all at a mean of 8.2 months (+/- 8 months) before PVR and repeated at a mean of 28.0 months (+/- 22.8 months) after the operation. Right ventricular (RV) end-systolic volume (RVESV), RV end-diastolic volume (RVEDV) and RV ejection fraction (RVEF) were measured.]...[Mean RVEDV, RVESV and RVEF remained unchanged after PVR (227.1 ml versus 214.9 ml, p = 0.74; 157.4 ml versus 155.4 ml, p = 0.94; 35.6% versus 34.7%, p = 0.78, respectively). Of the 10 patients with RVEF>or = 0.40 before PVR, 5 patients (50%) maintained a RVEF>or = 0.40 following PVR, whereas only 2 out of 15 patients (13%) with pre-operative values<0.40 reached an RVEF>or = 0.40 postoperatively (p<0.001).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Right ventricular recovery following PVR for chronic significant pulmonary regurgitation after repair of TOF may be compromised in the adult population. In order to maintain adequate RV contractility, pulmonary valve implant in these patients should be considered before RV function deteriorates. ##Answer: yes

Question: Xanthogranulomatous cholecystitis: a premalignant condition? Context: [Xanthogranulomatous cholecystitis (XGC) is an uncommon variant of chronic cholecystitis, characterized by marked thickening of the gallbladder wall and dense local adhesions. It often mimics a gallbladder carcinoma (GBC), and may coexist with GBC, leading to a diagnostic dilemma. Furthermore, the premalignant nature of this entity is not known. This study was undertaken to assess the p53, PCNA and beta-catenin expression in XGC in comparison to GBC and chronic inflammation.]...[Sections from paraffin-embedded blocks of surgically resected specimens of GBC (69 cases), XGC (65), chronic cholecystitis (18) and control gallbladder (10) were stained with the monoclonal antibodies to p53 and PCNA, and a polyclonal antibody to beta-catenin. p53 expression was scored as the percentage of nuclei stained. PCNA expression was scored as the product of the percentage of nuclei stained and the intensity of the staining (1-3). A cut-off value of 80 for this score was taken as a positive result. Beta-catenin expression was scored as type of expression-membranous, cytoplasmic or nuclear staining.]...[p53 mutation was positive in 52% of GBC cases and 3% of XGC, but was not expressed in chronic cholecystitis and control gallbladders. p53 expression was lower in XGC than in GBC (P<0.0001). PCNA expression was seen in 65% of GBC cases and 11% of XGC, but not in chronic cholecystitis and control gallbladders. PCNA expression was higher in GBC than XGC (P=0.0001), but there was no significant difference between the XGC, chronic cholecystitis and control gallbladder groups. Beta-catenin expression was positive in the GBC, XGC, chronic cholecystitis and control gallbladder groups. But the expression pattern in XGC, chronic cholecystitis and control gallbladders was homogenously membranous, whereas in GBC the membranous expression pattern was altered to cytoplasmic and nuclear.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The expression of p53, PCNA and beta-catenin in XGC was significantly different from GBC and similar to chronic cholecystitis, thus indicating the inflammatory nature of XGC and may not support a premalignant nature of the lesion. ##Answer: no

Question: Does TDP-43 type confer a distinct pattern of atrophy in frontotemporal lobar degeneration? Context: [To determine whether TDP-43 type is associated with distinct patterns of brain atrophy on MRI in subjects with pathologically confirmed frontotemporal lobar degeneration (FTLD).]...[In this case-control study, we identified all subjects with a pathologic diagnosis of FTLD with TDP-43 immunoreactive inclusions (FTLD-TDP) and at least one volumetric head MRI scan (n = 42). In each case we applied published criteria for subclassification of FTLD-TDP into FTLD-TDP types 1-3. Voxel-based morphometry was used to compare subjects with each of the different FTLD-TDP types to age- and gender-matched normal controls (n = 30). We also assessed different pathologic and genetic variants within, and across, the different types.]...[Twenty-two subjects were classified as FTLD-TDP type 1, 9 as type 2, and 11 as type 3. We identified different patterns of atrophy across the types with type 1 showing frontotemporal and parietal atrophy, type 2 predominantly anterior temporal lobe atrophy, and type 3 predominantly posterior frontal atrophy. Within the FTLD-TDP type 1 group, those with a progranulin mutation had significantly more lateral temporal lobe atrophy than those without. All type 2 subjects were diagnosed with semantic dementia. Subjects with a pathologic diagnosis of FTLD with motor neuron degeneration had a similar pattern of atrophy, regardless of whether they were type 1 or type 3.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Although there are different patterns of atrophy across the different FTLD-TDP types, it appears that genetic and pathologic factors may also affect the patterns of atrophy. ##Answer: yes

Question: Is oncoplastic surgery a contraindication for accelerated partial breast radiation using the interstitial multicatheter brachytherapy method? Context: [To evaluate accelerated partial breast irradiation (APBI) in patients after oncoplastic surgery for early breast cancer.]...[A retrospective analysis of 136 breasts of 134 patients, who received breast-conserving oncoplastic surgery for low-risk breast cancer between 2002 and 2010 in the Universities of Vienna and Luebeck followed by adjuvant APBI applying total doses of pulse dose rate of 50.4 Gy or high-dose rate (HDR) of 32 Gy over 4 days. Target volume definition was performed by the use of surgical-free margin data, related to intraoperatively fixed clip positions, pre- and postoperative imaging, and palpation.]...[At the time of data acquisition, 131 of 134 patients were alive. The median follow-up time was 39 months (range, 4-106 months). After high-dose rate treatment, 3 of 89 patients showed systemic progress after a mean follow-up of 47 months (range, 19-75 months) and 2 patients had a different quadrant in-breast tumor after 27 and 35 months. One patient died 7 months after treatment of unknown causes. After pulse dose rate treatment, 1 of 45 patients had a local recurrence after 42 months and 1 patient died because of another cause after 13 months. We observed mild fibrosis in 27 breasts, telangiectasia in 6, hyperpigmentation in 14 cases, and keloid formation in 1.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: These preliminary results suggest the feasibility of multicatheter APBI after oncoplastic breast-conserving surgery in selected low-risk breast cancer patients; however, special attention to target volume definition is needed. Further prospective investigations with long follow-up are needed to define the real value of the procedure. ##Answer: maybe

Question: Diagnostic characteristics of child bipolar I disorder: does the "Treatment of Early Age Mania (team)" sample generalize? Context: [To examine the representativeness of a randomized controlled trial (RCT) sample versus one obtained by consecutive new case ascertainment, for subjects with child bipolar I disorder.]...[Subjects (N = 247) were outpatients who participated in either the National Institute of Mental Health-funded Phenomenology and Course of Pediatric Bipolar Disorders study or the Treatment of Early Age Mania (TEAM) study. Both studies required that subjects have current DSM-IV bipolar I disorder (manic or mixed phase) and a Children's Global Assessment Scale (CGAS) score<or=60. All subjects had elation and/or grandiosity. Subjects in the Phenomenology study were obtained from 1995 to 1998 by consecutive new case ascertainment from designated pediatric and psychiatric facilities. Subjects in the TEAM RCT were recruited from media and community sources between March 2003 and March 2005. Assessment instruments included the Washington University in St. Louis Kiddie Schedule for Affective Disorders and Schizophrenia, given separately to parents about their children and to children about themselves, and the CGAS. Logistic regression was used for comparisons.]...[The TEAM and Phenomenology groups were similar in age (10.4 [SD = 2.3], 10.9 [SD = 2.3]years, respectively) and other demography. Both had long current episode duration (4.8 [SD = 2.4], 3.2 [SD = 2.3]years) and low lifetime use of any mood stabilizer (23.6%, 35.0%). Many mania symptoms and ultradian rapid cycling, psychosis, and suicidality were significantly more prevalent in the RCT sample.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Generalization of the RCT sample was supported, because only 7.8% of Phenomenology subjects did not fit the RCT criteria. Nevertheless, because the RCT subjects were more severely ill, it is unclear if treatment findings from the RCT will be applicable to children with less severe mania. ##Answer: yes

Question: Estimation of basal metabolic rate in Chinese: are the current prediction equations applicable? Context: [Measurement of basal metabolic rate (BMR) is suggested as a tool to estimate energy requirements. Therefore, BMR prediction equations have been developed in multiple populations because indirect calorimetry is not always feasible. However, there is a paucity of data on BMR measured in overweight and obese adults living in Asia and equations developed for this group of interest. The aim of this study was to develop a new BMR prediction equation for Chinese adults applicable for a large BMI range and compare it with commonly used prediction equations.]...[Subjects were 121 men and 111 women (age: 21-67 years, BMI: 16-41 kg/m(2)). Height, weight, and BMR were measured. Continuous open-circuit indirect calorimetry using a ventilated hood system for 30 min was used to measure BMR. A regression equation was derived using stepwise regression and accuracy was compared to 6 existing equations (Harris-Benedict, Henry, Liu, Yang, Owen and Mifflin). Additionally, the newly derived equation was cross-validated in a separate group of 70 Chinese subjects (26 men and 44 women, age: 21-69 years, BMI: 17-39 kg/m(2)).]...[The equation developed from our data was: BMR (kJ/d) = 52.6 x weight (kg) + 828 x gender + 1960 (women = 0, men = 1; R(2) = 0.81). The accuracy rate (within 10 % accurate) was 78 % which compared well to Owen (70 %), Henry (67 %), Mifflin (67 %), Liu (58 %), Harris-Benedict (45 %) and Yang (37 %) for the whole range of BMI. For a BMI greater than 23, the Singapore equation reached an accuracy rate of 76 %. Cross-validation proved an accuracy rate of 80 %.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: To date, the newly developed Singapore equation is the most accurate BMR prediction equation in Chinese and is applicable for use in a large BMI range including those overweight and obese. ##Answer: yes

Question: Does rugby headgear prevent concussion? Context: [To examine the attitudes of players and coaches to the use of protective headgear, particularly with respect to the prevention of concussion.]...[A questionnaire designed to assess attitudes to headgear was administered to 63 players from four different Canadian teams, each representing a different level of play (high school, university, community club, national). In addition, coaches from all four levels were questioned about team policies and their personal opinions about the use of headgear to prevent concussion.]...[Although the players tended to believe that the headgear could prevent concussion (62%), the coaches were less convinced (33%). Despite the players' belief that headgear offers protection against concussion, only a minority reported wearing headgear (27%) and few (24%) felt that its use should be made mandatory. Common reasons for not wearing headgear were "its use is not mandatory", "it is uncomfortable", and "it costs too much".] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Although most players in the study believe that rugby headgear may prevent concussion, only a minority reported wearing it. Coaches tended to be less convinced than the players that rugby headgear can prevent concussion. ##Answer: maybe

Question: Spinal subdural hematoma: a sequela of a ruptured intracranial aneurysm? Context: [A case of spinal subdural hematoma (SSDH) following subarachnoid hemorrhage (SAH) because of a ruptured internal carotid aneurysm is described. Such a case has never been reported.]...[A 52-year-old woman underwent a craniotomy for a ruptured internal carotid aneurysm. A computed tomography scan showed that SAH existed predominantly in the posterior fossa and subdural hematoma beneath the cerebellar tentorium. Intrathecal administration of urokinase, IV administration of fasudil hydrochloride, and continuous cerebrospinal fluid (CSF) evacuation via cisternal drainage were performed as prophylactic treatments for vasospasm. On the sixth postoperative day, the patient complained of severe lower back and buttock pain. Magnetic resonance imaging showed a subdural hematoma in the lumbosacral region. Although the mass effect was extensive, the patient showed no neurologic symptoms other than the sciatica. She was treated conservatively. The hematoma dissolved gradually and had diminished completely 15 weeks later. Her pain gradually subsided, and she was discharged 7 weeks later without any neurologic deficit.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Although the exact mechanism of SSDH in this case is unclear, we speculate that this SSDH was a hematoma that migrated from the intracranial subdural space. Low CSF pressure because of continuous drainage and intrathecal thrombolytic therapy may have played an important role in the migration of the hematoma through the spinal canal. It is important to recognize the SSDH as a possible complication of the SAH accompanied with intracranial subdural hematoma. ##Answer: yes

Question: Can shape analysis differentiate free-floating internal carotid artery thrombus from atherosclerotic plaque in patients evaluated with CTA for stroke or transient ischemic attack? Context: [Patients presenting with transient ischemic attack or stroke may have symptom-related lesions on acute computed tomography angiography (CTA) such as free-floating intraluminal thrombus (FFT). It is difficult to distinguish FFT from carotid plaque, but the distinction is critical as management differs. By contouring the shape of these vascular lesions ("virtual endarterectomy"), advanced morphometric analysis can be performed. The objective of our study is to determine whether quantitative shape analysis can accurately differentiate FFT from atherosclerotic plaque.]...[We collected 23 consecutive cases of suspected carotid FFT seen on CTA (13 men, 65 ± 10 years; 10 women, 65.5 ± 8.8 years). True-positive FFT cases (FFT+) were defined as filling defects resolving with anticoagulant therapy versus false-positives (FFT-), which remained unchanged. Lesion volumes were extracted from CTA images and quantitative shape descriptors were computed. The five most discriminative features were used to construct receiver operator characteristic (ROC) curves and to generate three machine-learning classifiers. Average classification accuracy was determined by cross-validation.]...[Follow-up imaging confirmed sixteen FFT+ and seven FFT- cases. Five shape descriptors delineated FFT+ from FFT- cases. The logistic regression model produced from combining all five shape features demonstrated a sensitivity of 87.5% and a specificity of 71.4% with an area under the ROC curve = 0.85 ± 0.09. Average accuracy for each classifier ranged from 65.2%-76.4%.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: We identified five quantitative shape descriptors of carotid FFT. This shape "signature" shows potential for supplementing conventional lesion characterization in cases of suspected FFT. ##Answer: yes

Question: Dementia and aphasia in motor neuron disease: an underrecognised association? Context: [To determine the prevalence and nature of global cognitive dysfunction and language deficits in an unselected population based cohort of patients with motor neuron disease (MND).]...[A battery of neuropsychological and language tests was administered to patients presenting consecutively over a 3 year period to a regional neurology service with a new diagnosis of sporadic motor neuron disease.]...[The 18 patients could be divided on the basis of their performance into three groups: Three patients were demented and had impaired language function (group 1); two non-demented patients had an aphasic syndrome characterised by word finding difficulties and anomia (group 2). Major cognitive deficits were therefore found in five of the 18 patients (28%). The remaining 13 performed normally on the test battery apart from decreased verbal fluency (group 3).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The prevalence of cognitive impairment in MND in this population based study of an unselected cohort was higher than has been previously reported. Language deficits, especially anomia, may be relatively frequent in the MND population. Aphasia in MND may be masked by dysarthria and missed if not specifically examined. ##Answer: yes

Question: Does solid culture for tuberculosis influence clinical decision making in India? Context: [Medical units at an academic tertiary referral hospital in Southern India.]...[To investigate the impact of solid culture on Löwenstein-Jensen medium on clinical decision making.]...[In a retrospective review of 150 culture-positive and 150 culture-negative consecutively sampled tuberculosis (TB) suspects, treatment decisions were analysed at presentation, after the availability of culture detection results and after the availability of drug susceptibility testing (DST) culture results.]...[A total of 124 (82.7%) culture-positive patients and 35 (23.3%) culture-negative patients started anti-tuberculosis treatment prior to receiving their culture results; 101 patients (33.7%) returned for their results; two (1.3%) initiated treatment based on positive culture and no culture-negative patients discontinued treatment. DST was performed on 119 (79.3%) positive cultures: 30 (25.2%) showed any resistance, eight (6.7%) showed multidrug resistance and one (0.84%) showed extensively drug-resistant TB. Twenty-eight patients (23.5%) returned for their DST results. Based on DST, treatment was modified in four patients (3.4%).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Using solid culture, 150 cultures need to be tested for one treatment modification and 30 for DST. The cost of the widespread application of culture will need to be balanced against its impact on treatment decisions in India. ##Answer: maybe

Question: Diffusion-weighted echo-planar MR imaging of primary parotid gland tumors: is a prediction of different histologic subtypes possible? Context: [Our aim was to determine the value of echo-planar diffusion-weighted MR imaging (epiDWI) in differentiating various types of primary parotid gland tumors.]...[One hundred forty-nine consecutive patients with suspected tumors of the parotid gland were examined with an epiDWI sequence by using a 1.5T unit. Image analysis was performed by 2 radiologists independently, and the intraclass correlation coefficient was computed. Histologic diagnosis was obtained in every patient. For comparison of apparent diffusion coefficients (ADCs), a paired 2-tailed Student t test with a Bonferroni correction was used.]...[In 136 patients, a primary parotid gland tumor was confirmed by histology. Among the observers, a high correlation was calculated (0.98). ADC values of pleomorphic adenomas were significantly higher than those of all other entities, except for myoepithelial adenomas (P = .054). ADC values of Warthin tumors were different from those of myoepithelial adenomas, lipomas, and salivary duct carcinomas (P<.001, 0.013, and .037, respectively). Mucoepidermoid carcinomas, acinic cell carcinomas, and basal cell adenocarcinomas were not differentiable from Warthin tumors (P = .094, .396, and .604, respectively).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: epiDWI has the potential to differentiate pleomorphic adenoma and myoepithelial adenomas from all other examined entities. Due to an overlap not only within the group of benign and malignant lesions but also between groups, diagnoses should not be addressed on the basis of ADC values solely. Therefore, further studies combining DWI, morphologic criteria, and probably other MR imaging techniques seem warranted. ##Answer: yes

Question: Is there a role for endothelin-1 in the hemodynamic changes during hemodialysis? Context: [The etiology of hemodialysis (HD)-induced hypotension and hypertension remains speculative. There is mounting evidence that endothelin-1 (ET-1) may play a vital role in these hemodynamic changes. We examined the possible role of intradialytic changes of ET-1 in the pathogenesis of hypotension and rebound hypertension during HD.]...[The present study included 45 patients with end-stage renal disease (ESRD) on regular HD. They were divided according to their hemodynamic status during HD into three groups (group I had stable intradialytic hemodynamics, group II had dialysis-induced hypotension, and group III had rebound hypertension during HD). In addition, 15 healthy volunteers were included as a control group. Pulse and blood pressure were monitored before, during (every half hour), and after HD session. ET-1 level was measured at the beginning, middle, and end of HD. ET-1 was measured in the control group for comparison.]...[Pre-dialysis levels of ET-1 were significantly higher in dialysis patients compared to the controls (P<0.001); however, they were comparable in the three HD groups. The post-dialysis ET-1 level was not changed significantly in group I compared with predialysis values (14.49 +/- 2.04 vs. 14.33 +/- 2.23 pg/ml; P = NS), while the ET-1 concentration decreased significantly in group II and increased in group III in comparison to predialysis values (8.56 +/- 1.44 vs. 11.75 +/- 2.51; 16.39 +/- 3.12 vs. 11.93 +/- 2.11 pg/ml, respectively; P<0.001).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Altered ET-1 levels may be involved in the pathogenesis of rebound hypertension and hypotension during HD. ##Answer: maybe

Question: Do risk factors for suicidal behavior differ by affective disorder polarity? Context: [Suicide is a leading cause of death and has been strongly associated with affective disorders. The influence of affective disorder polarity on subsequent suicide attempts or completions and any differential effect of suicide risk factors by polarity were assessed in a prospective cohort.]...[Participants with major affective disorders in the National Institute of Mental Health (NIMH) Collaborative Depression Study (CDS) were followed prospectively for up to 25 years. A total of 909 participants meeting prospective diagnostic criteria for major depressive and bipolar disorders were followed through 4204 mood cycles. Suicidal behavior was defined as suicide attempts or completions. Mixed-effects, grouped-time survival analysis assessed risk of suicidal behavior and differential effects of risk factors for suicidal behavior by polarity. In addition to polarity, the main effects of age, gender, hopelessness, married status, prior suicide attempts and active substance abuse were modeled, with mood cycle as the unit of analysis.]...[After controlling for age of onset, there were no differences in prior suicide attempts by polarity although bipolar participants had more prior severe attempts. During follow-up, 40 cycles ended in suicide and 384 cycles contained at least one suicide attempt. Age, hopelessness and active substance abuse but not polarity predicted suicidal behavior. The effects of risk factors did not differ by polarity.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Bipolarity does not independently influence risk of suicidal behavior or alter the influence of well-established suicide risk factors within affective disorders. Suicide risk assessment strategies may continue to appraise these common risk factors without regard to mood polarity. ##Answer: no

Question: Multidisciplinary breast cancer clinics. Do they work? Context: [In an attempt to improve the care they provide for their patients with breast cancer, the authors' institution developed a multidisciplinary breast cancer clinic (MDBCC) to offer "one-stop shopping" consultation and support for newly diagnosed breast cancer patients.]...[One hundred sixty-two patients, the control group for this study, were evaluated at Henry Ford Hospital during the year prior to the opening of the MDBCC. These patients, who were referred in the traditional sequential consultation manner, were compared with the first 177 patients seen during the first year of the clinic's operation. Retrospective chart reviews were conducted to assess treatment timeliness, and anonymous questionnaires were used to assess patient satisfaction.]...[The authors found that the MDBCC increased patient satisfaction by encouraging involvement of patients' families and friends and by helping patients make treatment decisions (P<0.001). The time between diagnosis and the initiation of treatment was also significantly decreased (42.2 days vs. 29.6 days; P<0.0008).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Although planning and operating a multidisciplinary clinic is not a new venture, to the best of the authors' knowledge, they have provided the first report demonstrating the benefits described above. ##Answer: yes

Question: Is the international normalised ratio (INR) reliable? Context: [As part of an MRC funded study into primary care oral anticoagulation management, INR measurements obtained in general practice were validated against values on the same samples obtained in hospital laboratories. A prospective comparative trial was undertaken between three hospital laboratories and nine general practices. All patients attending general practice based anticoagulant clinics had parallel INR estimations performed in general practice and in a hospital laboratory.]...[405 tests were performed. Comparison between results obtained in the practices and those in the reference hospital laboratory (gold standard), which used the same method of testing for INR, showed a correlation coefficient of 0.96. Correlation coefficients comparing the results with the various standard laboratory techniques ranged from 0.86 to 0.92. It was estimated that up to 53% of tests would have resulted in clinically significant differences (change in warfarin dose) depending upon the site and method of testing. The practice derived results showed a positive bias ranging from 0.28 to 1.55, depending upon the site and method of testing.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: No technical problems associated with INR testing within primary care were uncovered. Discrepant INR results are as problematic in hospital settings as they are in primary care. These data highlight the failings of the INR to standardise when different techniques and reagents are used, an issue which needs to be resolved. For primary care to become more involved in therapeutic oral anticoagulation monitoring, close links are needed between hospital laboratories and practices, particularly with regard to training and quality assurance. ##Answer: maybe

Question: Are there associations of health status, disease activity and damage in SLE patients? Context: [A cross sectional study of 38 patients fulfilling the classification criteria for SLE. The patients visited a rheumatology outpatient clinic in Switzerland between January 2002 and December 2004. The last assessment during this period was used for the study. The assessment included, besides demographic data, the measurement of disease activity using the BILAG index, the measurement of disease damage using the SLICC/ACR damage index (SDI), as well as the patient's self assessed health status using the patient's questionnaire Medical Outcome Survey Short Form 36 (SF-36).]...[A total of 36 women and 2 men were included in the study (median age: 43 yrs, median disease duration: 11 yrs). Increased disease activity (total BILAG) was shown to be significantly correlated with reduced physical function. A greater damage (total SDI) correlated significantly with reduced role function due to emotional limitations. Neither age nor disease duration showed any significant correlation with health status in this study.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The present study, which is based on internationally accepted assessment tools for SLE patients, shows a significant relationship between increased disease activity and reduced physical function. This result emphasizes the importance of optimizing treatment aiming at reducing disease activity. ##Answer: yes

Question: PSA repeatedly fluctuating levels are reassuring enough to avoid biopsy? Context: [Prostate-specific antigen (PSA) levels can show wide fluctuations when repeatedly measured. Here we investigatewd if: (a) biopsy timing influences the prostate cancer (PC) detection rate in patients with fluctuating PSA (flu-PSA) in comparison with patients with steadily increasing PSA (si-PSA); (b) PSA slope estimated in patients with flu-PSA predicts a different risk of cancer detection; (c) flu-PSA and si-PSA patients develop PC in topographically different sites; (d) the behaviour of pre-operative PSA is an expression of a disease with defferent characteristics to the following radical prostatectomy.]...[The study involved 211 patients who underwent at least a second biopsy after a first negative prostate biopsy. PSA Slope, PSA velocity (PSAV) and PSA doubling time (PSADT) were estimated. Flu-PSA level was defined as a PSA series with at least one PSA value lower than the one immediately preceding it.]...[82 patients had flu-PSA levels and 129 si-PSA levels. There were no significant differences between the two groups in terms of cancer detection, clinical or pathological stage, but the si-PSA group with cancer had a higher Gleason score. No difference was found for PSA Slope between flu-PSA patients with cancer and those without.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Our study demonstrates no difference in PC detection rate at repeat biopsy between patients with flu or si-PSA levels. PSA Slope, PSAV and PSADT were not found helpful tools in cancer detection. ##Answer: no

Question: Is zero central line-associated bloodstream infection rate sustainable? Context: [Adoption and implementation of evidence-based measures for catheter care leads to reductions in central line-associated bloodstream infection (CLABSI) rates in the NICU. The purpose of this study is to evaluate whether this rate reduction is sustainable for at least 1 year and to identify key determinants of this sustainability at the NICU of the Floating Hospital for Children at Tufts Medical Center.]...[We reviewed the incidence of CLABSIs in the NICU temporally to the implementation of new practice policies and procedures, from July 2008 to December 2013.]...[Adoption of standardized care practices, including bundles and checklists, was associated with a significant reduction of the CLABSI rate to zero for>370 consecutive days in our NICU in 2012. Overall, our CLABSI rates decreased from 4.1 per 1000 line days in 2009 (13 infections; 3163 line days) to 0.94 in 2013 (2 infections; 2115 line days), which represents a 77% reduction over a 5-year period. In the first quarter of 2013, there was a brief increase in CLABSI rate to 3.3 per 1000 line days; after a series of interventions, the CLABSI rate was maintained at zero for>600 days. Ongoing training, surveillance, and vigilance with catheter insertion and maintenance practices and improved documentation were identified as key drivers for success.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: High-quality training, strict compliance with evidence-based guidelines, and thorough documentation is associated with significant reductions in CLABSIs. Mindful organizing may lead to a better understanding of what goes into a unit's ability to handle peak demands and sustain extraordinary performance in the long-term. ##Answer: yes

Question: Is gastric electrical stimulation superior to standard pharmacologic therapy in improving GI symptoms, healthcare resources, and long-term health care benefits? Context: [Severe upper gastrointestinal (GI) motor disorders, including gastroparesis (GP), can consume significant health care resources. Many patients are refractory to traditional drug therapy.]...[To compare symptoms, healthcare resource utilization and costs in two groups of patients with the symptoms of GP: those treated via gastric electrical stimulation (GES) and those treated with traditional pharmacological agents in an intensive outpatient program (MED).]...[A long-term comparison of patients with devices (n = 9) vs intensive medical therapy (n = 9).]...[A total of 18 eligible patients with the symptoms of GP reported for 1-year baseline and long-term treatment for 3 years.]...[Patients with the symptoms of GP were treated by a GES or intensive medical therapy (MED).]...[GP Symptoms, healthcare resource utilization using investigator-derived independent outcome measure score (IDIOMS) and total hospital (inpatient and outpatient) billing costs.]...[Gastrointestinal symptoms were significantly different from baseline (F = 3.03, P<0.017) with GP patients treated via GES showing more sustained improvement over 36 months than those treated via MED. Healthcare resource usage, measured via the IDIOMS, significantly improved at 12, 24 and 36 month follow-up for GES patients (F = 10.49, P<0.001), compared with patients receiving medical therapy, who demonstrated further deterioration. GP patients treated via GES also proved superior to medical therapy at 24 and 36 months with regard to decreased costs (F = 4.85, P<0.001). Within group comparisons indicated significantly reduced hospital days for both patient groups; however, no statistical differences were noted between groups in terms of hospital days. Three of nine patients in the MED group died primarily from i.v. access related problems; none of the GES patients died.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: We conclude that GES is more effective in improving long-term GI symptoms and costs, and decreasing use of healthcare resources than intensive medical therapy, in this sample of patients with the symptoms of GP followed for 3 years. Certain patients with GP form a high-risk group in terms of costs, quality of life, morbidity and mortality. ##Answer: yes

Question: Should pulp chamber pulpotomy be seen as a permanent treatment? Context: [Seventeen patients, aged 7-54 years (mean of 37.2 year), were treated by pulpotomy and filling with ProRoot MTA(®) in premolar or molar teeth with vital pulps and without clinical evidence of irreversible pulpitis. The patients were then followed up for 12 to 24 months and the teeth then assessed by clinical and radiographic examination. Statistical analysis was performed with Kaplan-Meier survival probability statistics to estimate the survival of the treated teeth.]...[At 24 months, the survival rate without any complementary treatment was estimated to be 82%. Two of the 17 treated teeth required root canal treatment for pain control and one for prosthetic reasons.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Under the conditions of this study, pulpotomy offered a viable alternative to root canal treatment for teeth with vital pulps in the short term. However, there is insufficient clinical evidence to consider this technique for the treatment of every permanent tooth. Nevertheless, it should be considered as a potential alternative approach to be further developed for future applications. ##Answer: no

Question: Does transverse apex coincide with coronal apex levels (regional or global) in adolescent idiopathic scoliosis? Context: [Cross-sectional.]...[To identify the regional and global apexes of curves in adolescent idiopathic scoliosis and to compare the levels of those with the most rotated vertebral levels on computed tomography scans.]...[The terminology regarding the terms and definitions had been arbitrary until being refined and standardized by the Scoliosis Research Society Working Group on Three-Dimensional Terminology of Spinal Deformity. Apical vertebra or disc is defined as the most laterally deviated vertebra or disc in a scoliosis curve, but the most rotated vertebra (or disc) has not been included in this terminology. One study suggested that the most rotated vertebral level was always located at the apex.]...[Thirty-three structural curves of 25 consecutive patients scheduled for surgery for thoracic or thoracolumbar scoliosis were analyzed with standing anteroposterior radiographs and computed tomography scans covering the curve apexes and pelvis. Thoracic and lumbar curves were evaluated separately for all Type II curves. Vertebral rotations were normalized by the rotation of the pelvis. The most rotated vertebral (or disc) levels (transverse apex) were compared with the regional and global apex levels (vertebra or disc) (coronal apexes) of the corresponding curves separately.]...[Regional and global apexes were at the same level in 18 (54.5%) curves, and within half a level in another 15 (45.4%), and the regional apex was one level higher in two curves (95% confidence levels: -0.82, +0.88). Comparison of the most rotated levels with regional and global apex levels revealed a higher variability, extending up to two levels for the global apex (95% confidence levels: -1.19, +1.54 levels for the global and -1.0, +1.41 levels for the regional apexes).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: This study demonstrated that the regional or global apex of a given curve is the most rotated level in only a minority of the curves. The most rotated level may be as far as two levels from the global apex and one level from the regional apex. ##Answer: no

Question: Does the Child Health Computing System adequately identify children with cerebral palsy? Context: [This paper assesses the usefulness of the Child Health Computing System as a source of information about children with cerebral palsy.]...[A comparative survey of information held on the Child Health Computing System (CHCS) and the Northern Ireland Cerebral Palsy Register (NICPR) in one Health and Social Services Board in Northern Ireland was carried out. The sample comprised children with cerebral palsy aged 5-9 years.]...[Of the 135 cases recorded on the NICPR, 47 per cent were not found on the CHCS; the majority of these children had no computer record of any medical diagnosis. Of the 82 cases recorded on the CHCS, 10 (12 per cent) were not found on the NICPR; five of these cases (6 per cent) were found on follow-up not to have CP.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Unless improvements are made in case ascertainment, case validation and recording activities, the evidence suggests that the CHCS will not be able to provide the same quality of information for needs assessment and surveillance of very low birthweight infants in relation to cerebral palsy as is provided by a specialist case register. ##Answer: no

Question: Are we seeing the effects of public awareness campaigns? Context: [The last 20 years has seen a marked improvement in skin cancer awareness campaigns. We sought to establish whether this has affected the presenting Breslow thickness of malignant melanoma in the South West.]...[This is a retrospective study looking at the first presentation of melanomas from 2003 to 2011. Data was accessed using the local online melanoma database.]...[A total of 2001 new melanomas presented from 2003 to 2012 (Male:Female = 1:1.062). The average yearly number of melanomas was 200.1 (range = 138-312). The mean age was 62.5 years (range 12-99). Data was analysed using a Chi² test. For 0-1 mm melanomas, there is a significant difference in the observed versus expected values over the 10 years (p = 0.0018). There is an increasing proportion of 0-1 mm (thin) melanomas presenting year on year, with a positive linear trend. This is very statistically significant (p<0.0001). The 1-2 mm melanomas are decreasing in proportion with a negative linear trend (p = 0.0013). The 2-4 mm are also decreasing in proportion (p = 0.0253). There is no significant change in the thick>4 mm melanomas (p = 0.1456).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The proportion of thin 0-1 mm melanomas presenting in South West England has significantly increased from 2003 to 2012. There is no significant change in the thick>4 mm melanomas. This may be a result of increased public awareness due to effective public health campaigns which has significant prognostic and financial implications. ##Answer: maybe

Question: Is breast cancer prognosis inherited? Context: [A genetic component is well established in the etiology of breast cancer. It is not well known, however, whether genetic traits also influence prognostic features of the malignant phenotype.]...[We carried out a population-based cohort study in Sweden based on the nationwide Multi-Generation Register. Among all women with breast cancer diagnosed from 1961 to 2001, 2,787 mother-daughter pairs and 831 sister pairs with breast cancer were identified; we achieved complete follow-up and classified 5-year breast cancer-specific prognosis among proband (mother or oldest sister) into tertiles as poor, intermediary, or good. We used Kaplan-Meier estimates of survival proportions and Cox models to calculate relative risks of dying from breast cancer within 5 years depending on the proband's outcome.]...[The 5-year survival proportion among daughters whose mothers died within 5 years was 87% compared to 91% if the mother was alive (p = 0.03). Among sisters, the corresponding proportions were 70% and 88%, respectively (p = 0.001). After adjustment for potential confounders, daughters and sisters of a proband with poor prognosis had a 60% higher 5-year breast cancer mortality compared to those of a proband with good prognosis (hazard ratio [HR], 1.6; 95% confidence interval [CI], 1.2 to 2.2; p for trend 0.002). This association was slightly stronger among sisters (HR, 1.8; 95% CI, 1.0 to 3.4) than among daughters (HR, 1.6; 95% CI, 1.1 to 2.3).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Breast cancer prognosis of a woman predicts the survival in her first-degree relatives with breast cancer. Our novel findings suggest that breast cancer prognosis might be inherited. ##Answer: yes

Question: Does nuchal translucency thickness in the first trimester predict GDM onset during pregnancy? Context: [This study was planned to evaluate whether increased nuchal translucency (NT) thickness in the first trimester of gestation can be related to onset of gestational diabetes mellitus (GDM) during pregnancy.]...[From January 2006 to August 2008, a group of 678 singleton pregnancies who had developed GDM has been selected as a study group among a total of 3966 pregnant women who had undergone first trimester screening for aneuploidies at 11-14 weeks of gestation. A group of 420 single pregnant women with physiological pregnancy were enrolled as control group. Both fetal structural and karyotype's anomalies were excluded in the two groups. NT was mesured by a Fetal Medicine Foundation certificated operator; GDM was diagnosed at 24-28 weeks of gestation following Carpenter and Coustan criteria. In the analyses of continuos variables, study and control group were compared by Student's t-test and Anova test.]...[There was no significative difference (p = 0.585) between NT values in the study (mean = 1.56) and control group (mean = 1.54).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: NT thickness does not show a significative increase in those women who subsequently develop GDM. Therefore, NT assessment does not prove to be an useful ultrasound parameter for predicting GDM onset during pregnancy. ##Answer: no

Question: Are the arginine vasopressin V1a receptor microsatellites related to hypersexuality in children with a prepubertal and early adolescent bipolar disorder phenotype? Context: [To examine family-based transmission of the number of 5' flanking arginine vasopressin V1a receptor (AVPR1A) microsatellites, which include [(GATA)(14)] and complex [(CT)(4)-TT-(CT)(8)-(GT)(24)]repeats, in probands with a prepubertal and early adolescent bipolar disorder phenotype (PEA-BP). Preferential transmission of the number of AVPR1A microsatellite repeats to hypersexual and uninhibited people-seeking probands was hypothesized, based on reports from preclinical work in the literature.]...[Probands were 83 participants in an ongoing controlled study of PEA-BP. The PEA-BP phenotype was defined by DSM-IV mania with at least one of the cardinal symptoms of mania (elation and/or grandiosity) to avoid diagnosing mania only by symptoms that overlapped with those for attention-deficit hyperactivity disorder (ADHD). Comprehensive assessment of the probands included separate Washington University in St. Louis Kiddie Schedule for Affective Disorders and Schizophrenia (WASH-U-KSADS) interviews of parents about their children and of children about themselves. Hypersexuality and uninhibited people-seeking were assessed from the corresponding WASH-U-KSADS items. Microsatellite genotyping of the AVPR1A repeats was conducted using fluorescently labeled primers and detected by laser-induced fluorescence. Alleles were determined with the assistance of semi-automated allele-calling software. There were 32 complete, biological trios (28 informative families) for the GATA repeat and 34 complete, biological trios (30 informative families) for the complex repeat. Data were analyzed using case-control and family-based association methods.]...[Preferential transmission of AVPR1A GATA or complex repeats was not significant for hypersexuality or uninhibited people-seeking, using the transmission disequilibrium test. Similarly, case-control analyses found no significant associations between hypersexuality or uninhibited people-seeking and the number of AVPR1A GATA or complex repeats. For p<0.05, there was about 80% power to detect odds ratios of 5.0 and 4.0 (in the family-based analyses) and 3.5 and 2.6 (in the case-control analyses), for allele frequencies of 0.1 and 0.5, respectively.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Preferential transmission of AVPR1A to hypersexual or uninhibited people-seeking probands was not supported. ##Answer: no

Question: Stage I non-small cell lung carcinoma: really an early stage? Context: [We review our results on surgical treatment of patients with stage I non-small cell lung carcinoma and we attempted to clarify the prognostic significance of some surgical--pathologic variables.]...[From 1993 to 1999, 667 patients received curative lung resection and complete hilar and mediastinal lymphadenectomy for non-small cell lung cancer. Of these, there were 436 Stage I disease (65%), of whom 144 T1N0 and 292 T2N0. No patients had pre- or postoperative radio- or chemotherapy. Prognostic significance of the following independent variables was tested using univariate (log-rank) and multivariate (Cox proportional-hazards) analysis: type of resection (sublobar vs lobectomy vs pneumonectomy), histology (squamous cell vs adenocarcinoma), tumour size (<or=3cm vs>3cm), histologic vascular invasion, visceral pleura involvement, positive bronchial resection margin, general T status.]...[Overall 5-year survival was 63%. In both univariate and multivariate survival analysis, significant prognostic factors were histology (adenocarcinoma 65% vs squamous cell carcinoma 51%), tumour size (<or=3cm 67% vs>3cm 46%), and the presence of negative resection margin. Five-year survival by general T status was 66% in T1N0 vs 55% in T2N0 disease (P=0.19).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Despite advances in early diagnosis and surgical technique, 5-year survival of stage I non-small cell lung carcinoma remains low as compared to survival of other solid organ neoplasm. Tumour size<or=3cm, adenocarcinoma histologic type and negative bronchial resection margins were associated with a more favourable outcome in our patient population. More effective multimodality treatments are needed to increase survival rates. ##Answer: no

Question: Does Residency Selection Criteria Predict Performance in Orthopaedic Surgery Residency? Context: [More than 1000 candidates applied for orthopaedic residency positions in 2014, and the competition is intense; approximately one-third of the candidates failed to secure a position in the match. However, the criteria used in the selection process often are subjective and studies have differed in terms of which criteria predict either objective measures or subjective ratings of resident performance by faculty.QUESTIONS/]...[Do preresidency selection factors serve as predictors of success in residency? Specifically, we asked which preresidency selection factors are associated or correlated with (1) objective measures of resident knowledge and performance; and (2) subjective ratings by faculty.]...[Charts of 60 orthopaedic residents from our institution were reviewed. Preresidency selection criteria examined included United States Medical Licensing Examination (USMLE) Step 1 and Step 2 scores, Medical College Admission Test (MCAT) scores, number of clinical clerkship honors, number of letters of recommendation, number of away rotations, Alpha Omega Alpha (AOA) honor medical society membership, fourth-year subinternship at our institution, and number of publications. Resident performance was assessed using objective measures including American Board of Orthopaedic Surgery (ABOS) Part I scores and Orthopaedics In-Training Exam (OITE) scores and subjective ratings by faculty including global evaluation scores and faculty rankings of residents. We tested associations between preresidency criteria and the subsequent objective and subjective metrics using linear correlation analysis and Mann-Whitney tests when appropriate.]...[Objective measures of resident performance namely, ABOS Part I scores, had a moderate linear correlation with the USMLE Step 2 scores (r = 0.55, p<0.001) and number of clinical honors received in medical school (r = 0.45, p<0.001). OITE scores had a weak linear correlation with the number of clinical honors (r = 0.35, p = 0.009) and USMLE Step 2 scores (r = 0.29, p = 0.02). With regards to subjective outcomes, AOA membership was associated with higher scores on the global evaluation (p = 0.005). AOA membership also correlated with higher global evaluation scores (r = 0.60, p = 0.005) with the strongest correlation existing between AOA membership and the "interpersonal and communication skills" subsection of the global evaluations.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: We found that USMLE Step 2, number of honors in medical school clerkships, and AOA membership demonstrated the strongest correlations with resident performance. Our goal in analyzing these data was to provide residency programs at large a sense of which criteria may be "high yield" in ranking applicants by analyzing data from within our own pool of residents. Similar studies across a broader scope of programs are warranted to confirm applicability of our findings. The continually emerging complexities of the field of orthopaedic surgery lend increasing importance to future work on the appropriate selection and training of orthopaedic residents. ##Answer: yes

Question: Optimism and survival: does an optimistic outlook predict better survival at advanced ages? Context: [Studies examining predictors of survival among the oldest-old have primarily focused on objective measures, such as physical function and health status. Only a few studies have examined the effect of personality traits on survival, such as optimism. The aim of this study was to examine whether an optimistic outlook predicts survival among the oldest-old.]...[The Danish 1905 Cohort Survey is a nationwide, longitudinal survey comprising all individuals born in Denmark in 1905. At baseline in 1998, a total of 2,262 persons aged 92 or 93 agreed to participate in the intake survey. The baseline in-person interview consisted of a comprehensive questionnaire including physical functioning and health, and a question about whether the respondent had an optimistic, neutral or pessimistic outlook on his or her own future.]...[During the follow-up period of 12 years (1998-2010) there were 2,239 deaths (99 %) in the 1905 Cohort Survey. Univariable analyses revealed that optimistic women and men were at lower risk of death compared to their neutral counterparts [HR 0.82, 95 % CI (0.73-0.93) and 0.81, 95 % CI (0.66-0.99), respectively]. When confounding factors such as baseline physical and cognitive functioning and disease were taken into account the association between optimism and survival weakened in both sexes, but the general pattern persisted. Optimistic women were still at lower risk of death compared to neutral women [HR 0.85, 95 % CI (0.74-0.97)]. The risk of death was also decreased for optimistic men compared to their neutral counterparts, but the effect was non-significant [HR 0.91, 95 % CI (0.73-1.13)].] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: An optimistic outlook appears to be a significant predictor of survival among the oldest-old women. It may also be a significant predictor for men but the sample size is small. ##Answer: yes

Question: Is it better to be big? Context: [Swedish hospital mergers seem to stem from a conviction among policy makers that bigger hospitals lead to lower average costs and improved clinical outcomes. The effects of mergers in the form of multisited hospitals have not been systematically evaluated. The purpose of this article is to contribute to this area of knowledge by exploring responses to the merger of Blekinge Hospital.]...[The evaluation was guided by the philosophy of triangulation. A questionnaire was sent to 597 randomly selected employees, that is 24% of the health care staff. Four hundred ninety-eight employees answered the questionnaire, giving a response rate of 83%. Furthermore, interviews of different groups of stakeholders were conducted.]...[A moderate increase of quality was assessed, which, a low proportion of the employees perceived had decisively or largely to do with the merger. The majority perceives economical incentives as the drivers of change, but, at the same time, only 10% of this group believes this target was reached completely or to a large extent.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The employees believe the merger has neither generated economy of scale advantages nor substantial quality improvement. Instead, it seems more rewarding to promote cross-functional collaboration together with clinical specialisation. Needs for both integration and differentiation could thereby be fulfilled. ##Answer: no

Question: Is arch form influenced by sagittal molar relationship or Bolton tooth-size discrepancy? Context: [Orthodontic patients show high prevalence of tooth-size discrepancy. This study investigates the possible association between arch form, clinically significant tooth-size discrepancy, and sagittal molar relationship.]...[Pretreatment orthodontic casts of 230 Saudi patients were classified into one of three arch form types (tapered, ovoid, and square) using digitally scanned images of the mandibular arches. Bolton ratio was calculated, sagittal molar relationship was defined according to Angle classification, and correlations were analyzed using ANOVA, chi-square, and t-tests.]...[No single arch form was significantly more common than the others. Furthermore, no association was observed between the presence of significant Bolton discrepancy and the sagittal molar relationship or arch form. Overall Bolton discrepancy is significantly more prevalent in males.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Arch form in a Saudi patient group is independent of gender, sagittal molar relationship, and Bolton discrepancy. ##Answer: no

Question: Cold knife conization vs. LEEP. Are they the same procedure? Context: [To prospectively evaluate the amount of tissue removed at loop electrosurgical excision procedure (LEEP) vs. cold knife conization.]...[Forty consecutive LEEP or cold knife conization specimens were prospectively measured and weighed by a single pathology technician. Diameter, length and weight of the specimens were compared using Student's t test.]...[Mean diameter of cold knife cone specimens was 2.6 vs. 2.2 cm for LEEP (P = .07). Mean length of cold knife cone specimens was 1.5 vs. 1.0 cm for LEEP (P = .001). Mean weight for cold knife cone specimens was 4.4 vs. 2.0 g for LEEP (P = .001).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: In a prospective evaluation, cold knife cone specimens were 50% longer and 100% heavier than LEEP specimens. ##Answer: no

Question: Are pectins involved in cold acclimation and de-acclimation of winter oil-seed rape plants? Context: [The hypothesis was tested that pectin content and methylation degree participate in regulation of cell wall mechanical properties and in this way may affect tissue growth and freezing resistance over the course of plant cold acclimation and de-acclimation.]...[Experiments were carried on the leaves of two double-haploid lines of winter oil-seed rape (Brassica napus subsp. oleifera), differing in winter survival and resistance to blackleg fungus (Leptosphaeria maculans).]...[Plant acclimation in the cold (2 degrees C) brought about retardation of leaf expansion, concomitant with development of freezing resistance. These effects were associated with the increases in leaf tensile stiffness, cell wall and pectin contents, pectin methylesterase (EC 3.1.1.11) activity and the low-methylated pectin content, independently of the genotype studied. However, the cold-induced modifications in the cell wall properties were more pronounced in the leaves of the more pathogen-resistant genotype. De-acclimation promoted leaf expansion and reversed most of the cold-induced effects, with the exception of pectin methylesterase activity.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The results show that the temperature-dependent modifications in pectin content and their methyl esterification degree correlate with changes in tensile strength of a leaf tissue, and in this way affect leaf expansion ability and its resistance to freezing and to fungus pathogens. ##Answer: yes

Question: Updating emotional content in working memory: a depression-specific deficit? Context: [Interference from irrelevant negative material might be a key mechanism underlying intrusive ruminative thoughts in depression. Considering commonalities between depression and social anxiety and the presence of similar intrusive thoughts in social anxiety, the current study was designed to assess whether interference from irrelevant material in working memory is specific to depression or is also present in social anxiety disorder.]...[To examine the effects of irrelevant emotional material on working memory performance, participants memorized two lists of words on each trial and were subsequently instructed to ignore one of the lists. Participants were then asked to indicate whether a probe word belonged to the relevant list or not.]...[Compared to control and social anxiety groups, the depression groups (both pure and comorbid with social anxiety disorder) exhibited greater difficulties removing irrelevant emotional material from working memory (i.e., greater intrusion effects). Greater intrusion effects were also associated with increased rumination.]...[Although we included three clinical groups (depression, social anxiety, and the comorbid groups), the results are based on a relatively small number of participants.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The results indicate that difficulties removing irrelevant material from working memory might be unique to depression, and the ability to inhibit irrelevant information is relatively preserved in social anxiety disorder. ##Answer: yes

Question: Does ultrasound imaging before puncture facilitate internal jugular vein cannulation? Context: [To investigate whether prepuncture ultrasound evaluation of vascular anatomy facilitates internal jugular vein cannulation compared with landmark-guided puncture.]...[Prospective randomized study.]...[Single community hospital.]...[Adult patients undergoing general anesthesia (n = 240).]...[The right internal jugular vein was cannulated using either anatomic landmarks or prepuncture ultrasound (3.75/7.5 MHz) guidance. In the landmark group, respiratory jugular venodilation was used as the primary landmark for locating the vein. Results of cannulation and the incidence of complications were compared.]...[Patients were randomly assigned to the ultrasound or landmark group. Respiratory jugular venodilation was identified in 188 patients (78.3%), in whom results of cannulation did not differ between the 2 techniques with respect to the venous access rate (cannulated at the first attempt: 83.5% in the landmark v 85.7% in the ultrasound group), the success rate (cannulated within 3 attempts: 96.9% v 95.6%), and the incidence of arterial puncture (1.0% v 3.3%). In the remaining 52 respiratory jugular venodilation-unidentified patients, the access rate (30.4% v 86.2%, p<0.001) and the success rate (78.3 v 100%, p<0.05) were significantly better in the ultrasound group, and no arterial puncture was recorded in the ultrasound group, whereas the incidence was 13.0% in the landmark group. The results were similar regardless of the ultrasound frequency used.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Prepuncture ultrasound evaluation did not improve the result of right internal jugular vein cannulation compared with the respiratory jugular venodilation-guided approach. When the landmark was not observed, however, the prepuncture ultrasound guidance was helpful in facilitating the cannulation. ##Answer: maybe

Question: Should prostate specific antigen be adjusted for body mass index? Context: [Obesity may be associated with lower prostate specific antigen through hemodilution. We examined the relationship between body mass index and prostate specific antigen by age in men without prostate cancer in a longitudinal aging study to determine whether prostate specific antigen must be adjusted for body mass index.]...[The study population included 994 men (4,937 observations) without prostate cancer in the Baltimore Longitudinal Study of Aging. Mixed effects models were used to examine the relationship between prostate specific antigen and body mass index in kg/m(2) by age. Separate models were explored in men with prostate cancer censored at diagnosis, for percent body fat measurements, for weight changes with time and adjusting for initial prostate size in 483 men (2,523 observations) with pelvic magnetic resonance imaging measurements.]...[In men without prostate cancer body mass index was not significantly associated with prostate specific antigen after adjusting for age (p = 0.06). A 10-point body mass index increase was associated with a prostate specific antigen difference of -0.03 ng/ml (95% CI -0.40-0.49). Results were similar when men with prostate cancer were included, when percent body fat was substituted for body mass index, and after adjusting for prostate volume. Longitudinal weight changes also had no significant association with prostate specific antigen.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Consistent with prior studies, we found an inverse relationship between obesity and serum prostate specific antigen. However, the magnitude of the difference was small. Thus, adjusting prostate specific antigen for body mass index does not appear warranted. ##Answer: no

Question: Does obstructive sleep apnea affect aerobic fitness? Context: [We sought to determine whether patients with obstructive sleep apnea (OSA) had an objective change in aerobic fitness during cycle ergometry compared to a normal population. The most accurate test of aerobic fitness is measurement of maximum oxygen consumption (VO2max) with cycle ergometry.]...[We performed a retrospective cohort analysis (247 patients with OSA) of VO2max from annual cycle ergometry tests compared to a large control group (normative data from 1.4 million US Air Force tests) in a tertiary care setting.]...[Overall, individuals with OSA had increased VO2max when compared to the normalized US Air Force data (p<.001). Patients with an apnea-hypopnea index of greater than 20 demonstrated a decreased VO2max as compared to normalized values (p<.001). No differences in VO2max were observed after either medical or surgical therapy for OSA.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Overall, in a US Air Force population, OSA does not predict a decrease in aerobic fitness as measured by cycle ergometry. However, patients with an apnea-hypopnea index of greater than 20 have a statistically significant decrease in aerobic fitness compared to the normal population. This study demonstrates the effects of OSA on aerobic fitness. Further correlation of fitness testing results with OSA severity and treatment is needed. ##Answer: maybe

Question: The effect of an intracerebroventricular injection of metformin or AICAR on the plasma concentrations of melatonin in the ewe: potential involvement of AMPK? Context: [It is now widely accepted that AMP-activated protein kinase (AMPK) is a critical regulator of energy homeostasis. Recently, it has been shown to regulate circadian clocks. In seasonal breeding species such as sheep, the circadian clock controls the secretion of an endogenous rhythm of melatonin and, as a consequence, is probably involved in the generation of seasonal rhythms of reproduction. Considering this, we identified the presence of the subunits of AMPK in different hypothalamic nuclei involved in the pre- and post-pineal pathways that control seasonality of reproduction in the ewe and we investigated if the intracerebroventricular (i.c.v.) injection of two activators of AMPK, metformin and AICAR, affected the circadian rhythm of melatonin in ewes that were housed in constant darkness. In parallel the secretion of insulin was monitored as a peripheral metabolic marker. We also investigated the effects of i.c.v. AICAR on the phosphorylation of AMPK and acetyl-CoA carboxylase (ACC), a downstream target of AMPK, in brain structures along the photoneuroendocrine pathway to the pineal gland.]...[All the subunits of AMPK that we studied were identified in all brain areas that were dissected but with some differences in their level of expression among structures. Metformin and AICAR both reduced (p<0.001 and p<0.01 respectively) the amplitude of the circadian rhythm of melatonin secretion independently of insulin secretion. The i.c.v. injection of AICAR only tended (p = 0.1) to increase the levels of phosphorylated AMPK in the paraventricular nucleus but significantly increased the levels of phosphorylated ACC in the paraventricular nucleus (p<0.001) and in the pineal gland (p<0.05).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Taken together, these results suggest a potential role for AMPK on the secretion of melatonin probably acting trough the paraventricular nucleus and/or directly in the pineal gland. We conclude that AMPK may act as a metabolic cue to modulate the rhythm of melatonin secretion. ##Answer: yes

Question: Literacy after cerebral hemispherectomy: Can the isolated right hemisphere read? Context: [Cerebral hemispherectomy, a surgical procedure undergone to control intractable seizures, is becoming a standard procedure with more cases identified and treated early in life [33]. While the effect of the dominant hemisphere resection on spoken language has been extensively researched, little is known about reading abilities in individuals after left-sided resection. Left-lateralized phonological abilities are the key components of reading, i.e., grapheme-phoneme conversion skills [1]. These skills are critical for the acquisition of word-specific orthographic knowledge and have been shown to predict reading levels in average readers as well as in readers with mild cognitive disability [26]. Furthermore, impaired phonological processing has been implicated as the cognitive basis in struggling readers. Here, we explored the reading skills in participants who have undergone left cerebral hemispherectomy.]...[Seven individuals who have undergone left cerebral hemispherectomy to control intractable seizures associated with perinatal infarct have been recruited for this study. We examined if components of phonological processing that are shown to reliably separate average readers from struggling readers, i.e., phonological awareness, verbal memory, speed of retrieval, and size of vocabulary, show the same relationship to reading levels when they are mediated by the right hemisphere [2].]...[We found that about 60% of our group developed both word reading and paragraph reading in the average range. Phonological processing measured by both phonological awareness and nonword reading was unexpectedly spared in the majority of participants. Phonological awareness levels strongly correlated with word reading. Verbal memory, a component of phonological processing skills, together with receptive vocabulary size, positively correlated with reading levels similar to those reported in average readers. Receptive vocabulary, a bilateral function, was preserved to a certain degree similar to that of strongly left-lateralized phonological skills [3]. Later seizure onset was associated with better reading levels.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: When cerebral hemispherectomy is performed to control seizures associated with very early (in utero) insult, it has been found that the remaining right hemisphere is still able to support reading and phonological processing skills that are normally mediated by the left hemisphere. Our results also suggest the existence of variability in individuals after hemispherectomy, even within groups having the same etiology and similar timing of insult. ##Answer: yes

Question: Characterization of the gender dimorphism after injury and hemorrhagic shock: are hormonal differences responsible? Context: [To characterize the gender dimorphism after injury with specific reference to the reproductive age of the women (young,<48 yrs of age, vs. old,>52 yrs of age) in a cohort of severely injured trauma patients for which significant variation in postinjury care is minimized.]...[Secondary data analysis of an ongoing prospective multicenter cohort study.]...[Academic, level I trauma and intensive care unit centers.]...[Blunt-injured adults with hemorrhagic shock.]...[None.]...[Separate Cox proportional hazard regression models were formulated based on all patients to evaluate the effects of gender on mortality, multiple organ failure, and nosocomial infection, after controlling for all important confounders. These models were then used to characterize the effect of gender in young and old age groups. Overall mortality, multiple organ failure, and nosocomial infection rates for the entire cohort (n = 1,036) were 20%, 40%, and 45%, respectively. Mean Injury Severity Score was 32 +/- 14 (mean +/- SD). Men (n = 680) and women (n = 356) were clinically similar except that men required higher crystalloid volumes, more often had a history of alcoholism and liver disease, and had greater ventilatory and intensive care unit requirements. Female gender was independently associated with a 43% and 23% lower risk of multiple organ failure and nosocomial infection, respectively. Gender remained an independent risk factor in young and old subgroup analysis, with the protection afforded by female gender remaining unchanged.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The independent protective effect of female gender on multiple organ failure and nosocomial infection rates remains significant in both premenopausal and postmenopausal women when compared with similarly aged men. This is contrary to previous experimental studies and the known physiologic sex hormone changes that occur after menopause in women. These results suggest that factors other than sex hormones may be responsible for gender-based differences after injury. ##Answer: no

Question: Can communication with terminally ill patients be taught? Context: [Communication with terminally ill patients is a main responsibility of physicians. However, many physicians feel insufficiently prepared for this task. Models of courses resulting in improvements of communicative skills of participants have been published mainly in the Anglo-American literature. This study describes the realization of a 2-day course model based on the experiences of the first three courses of this kind in Rhineland-Palatinate, and analyzes changes of participants' communication behavior.]...[After each seminary, an evaluation form concerning participants' satisfaction with the course was filled in. Furthermore, all course participants received a questionnaire at the beginning and at the end of the course, as well as 3 months afterwards. The participants were asked to assess their own sense of security in seven different communication settings on a visual analog scale, and to specify perceived changes in their communication behavior 3 months after the course.]...[The first three courses were attended by 31 participants. Course evaluation revealed high satisfaction scores with methods as well as with clarity and relevance of the contents. Self-assessment of participants showed a growing sense of security in different communication settings. Important increases could be demonstrated for communicating a diagnosis of cancer with good or less good prognosis, recurrence of cancer or a far progressive cancer disease without curative approach. 3 months after the course, participants described multiple changes indicating increased sensibility and professionalism in communication behavior.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The realized communication skills courses resulted in relevant changes in communication behaviour and self-confidence of participants. Communication with terminally ill patients can be taught. ##Answer: yes

Question: Delays in time to primary treatment after a diagnosis of breast cancer: does it impact survival? Context: [Treatment delays in breast cancer are generally thought to affect prognosis but the impact on survival remains unclear. Indicators for breast cancer care include time to primary treatment. The purpose of this study was to evaluate whether time to primary treatment (TPT) in breast cancer impacts survival.]...[A total of 648 breast cancer patients treated in the University Malaya Medical Center (UMMC), Malaysia between 2004 and 2005 were included in the study. TPT was calculated from the date of pathological diagnosis to the date of primary treatment. Mortality data was obtained from the National Registry of Births and Deaths. Last date of follow-up was November 2010.]...[Median TPT was 18 days. Majority 508 (69.1%) of the patients received treatment within 30 days after diagnosis. The majority was surgically treated. Ethnicity (p=0.002) and stage at presentation (p=0.007) were significantly associated with delayed TPT. Malay ethnicity had delayed TPT compared to the Chinese; Hazard Ratio (HR) 1.9 (Confidence Interval (CI) 1.237, 2.987). Delayed TPT did not affect overall survival on univariate and multivariate analyses.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Time to primary treatment after a diagnosis of breast cancer had no impact on overall survival. Further studies on care before diagnosis are important in drawing up meaningful quality indicators. ##Answer: no

Question: Are increased carotid artery pulsatility and resistance indexes early signs of vascular abnormalities in young obese males? Context: [To provide insight into the factors by which obesity in itself may directly lead to early arterial damage, we aimed to determine early sonographic markers of obesity-related vascular dysfunction in young obese males.]...[Thirty-five young obese males and 23 age-matched healthy male volunteers were recruited into the study. Common carotid artery pulsatility index and resistance index were calculated from blood flow velocities curves obtained by pulsed Doppler ultrasonography.]...[The mean pulsatility index, resistance index, body mass index, waist circumference, systolic and diastolic blood pressure, homeostasis model assessment for insulin resistance, plasma fasting glucose, insulin, C-peptide, triglycerides, low-density lipoprotein cholesterol, and high-sensitivity C-reactive protein were statistically higher in obese subjects than in healthy controls.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Our results suggest that depressed vessel compliance and increased vascular resistance are features of young, obese, normotensive subjects independently of and in addition to cardiovascular risk factors. As changes in arterial wall properties may be incipient in young obese subjects, future studies will be required to demonstrate whether early intervention such as diet and exercise in this population can improve vascular functions. ##Answer: yes

Question: Are acceptance rates of a national preventive home visit programme for older people socially imbalanced? Context: [Preventive home visits are offered to community dwelling older people in Denmark aimed at maintaining their functional ability for as long as possible, but only two thirds of older people accept the offer from the municipalities. The purpose of this study is to investigate 1) whether socioeconomic status was associated with acceptance of preventive home visits among older people and 2) whether municipality invitational procedures for the preventive home visits modified the association.]...[The study population included 1,023 community dwelling 80-year-old individuals from the Danish intervention study on preventive home visits. Information on preventive home visit acceptance rates was obtained from questionnaires. Socioeconomic status was measured by financial assets obtained from national registry data, and invitational procedures were identified through the municipalities. Logistic regression analyses were used, adjusted by gender.]...[Older persons with high financial assets accepted preventive home visits more frequently than persons with low assets (adjusted OR = 1.5 (CI95%: 1.1-2.0)). However, the association was attenuated when adjusted by the invitational procedures. The odds ratio for accepting preventive home visits was larger among persons with low financial assets invited by a letter with a proposed date than among persons with high financial assets invited by other procedures, though these estimates had wide confidence intervals.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: High socioeconomic status was associated with a higher acceptance rate of preventive home visits, but the association was attenuated by invitational procedures. The results indicate that the social inequality in acceptance of publicly offered preventive services might decrease if municipalities adopt more proactive invitational procedures. ##Answer: yes

Question: Does open access publishing increase the impact of scientific articles? Context: [Some studies suggest that open access articles are more often cited than non-open access articles. However, the relationship between open access and citations count in a discipline such as intensive care medicine has not been studied to date. The present article analyzes the effect of open access publishing of scientific articles in intensive care medicine journals in terms of citations count.]...[We evaluated a total of 161 articles (76% being non-open access articles) published in Intensive Care Medicine in the year 2008. Citation data were compared between the two groups up until April 30, 2011. Potentially confounding variables for citation counts were adjusted for in a linear multiple regression model.]...[The median number (interquartile range) of citations of non-open access articles was 8 (4-12) versus 9 (6-18) in the case of open access articles (p=0.084). In the highest citation range (>8), the citation count was 13 (10-16) and 18 (13-21) (p=0.008), respectively. The mean follow-up was 37.5 ± 3 months in both groups. In the 30-35 months after publication, the average number (mean ± standard deviation) of citations per article per month of non-open access articles was 0.28 ± 0.6 versus 0.38 ± 0.7 in the case of open access articles (p=0.043). Independent factors for citation advantage were the Hirsch index of the first signing author (β=0.207; p=0.015) and open access status (β=3.618; p=0.006).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Open access publishing and the Hirsch index of the first signing author increase the impact of scientific articles. The open access advantage is greater for the more highly cited articles, and appears in the 30-35 months after publication. ##Answer: yes

Question: In vivo visualization of pyloric mucosal hypertrophy in infants with hypertrophic pyloric stenosis: is there an etiologic role? Context: [Infantile hypertrophic pyloric stenosis (IHPS) is a common condition which presents in infants at 2-12 weeks of postnatal life, and whose cause remains obscure. Multiple associated abnormalities have been recognized within the external hypertrophied pyloric muscle layer, but the internal component of the pyloric mucosa has received scant attention in the literature to date. Our purpose in this study was to show that pyloric mucosal redundancy is a constant finding in infants with IHPS, to discuss its possible cause, and to explore the hypothesis of a relationship between pyloric mucosal redundancy and the development of IHPS.]...[We identified 102 consecutive infants with surgically confirmed IHPS and determined the thickness of the pyloric mucosa compared with the thickness of the surrounding hypertrophied muscle. Fifty-one infants who did not have pyloric stenosis served as controls.]...[Mean mucosal thickness in patients with IHPS approximated mean muscle thickness, with a ratio of 0.89. In infants with IHPS, the pyloric mucosa constitutes approximately one third of the cross-sectional diameter of the pyloric mass and fills and obstructs the pyloric canal.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Mucosal redundancy is a constant associated finding in IHPS. Although the origin of the redundancy and a cause-and-effect relationship are difficult to establish, our findings support the hypothesis that hypergastrinemia may be implicated in the pathogenesis of IHPS, and suggest that mucosal thickening could be implicated as one of the initiating factors in its development. ##Answer: yes

Question: Does the early adopter of drugs exist? Context: [To analyse associations between indicators for adoption of new drugs and to test the hypothesis that physicians' early adoption of new drugs is a personal trait independent of drug groups.]...[In a population-based cohort study using register data, we analysed the prescribing of new drugs by Danish general practitioners. Angiotensin-II antagonists, triptans, selective cyclo-oxygenase-2 antagonists and esomeprazol were used in the assessment. As indicators of new drug uptake, we used adoption time, cumulative incidence, preference proportion, incidence rate and prescription cost and volume. For each measure, we ranked the general practices. Ranks were pair-wise plotted, and Pearson's correlation coefficient ( r) was calculated. Next, we analysed the correlation between ranks across different drug classes.]...[For all indicators, the general practitioners' adoption of one group of drugs was poorly associated with adoption of others ( r</=0.49), indicating that early adoption of one type of drugs is not associated with early adoption of another. For all drug groups, adoption time adjusted for practice size was only weakly associated with other indicators ( r: -0.56 to -0.27). Indicators, based on cost and volume of drugs, were highly correlated ( r: 0.96-0.99), and the others correlated reasonably well ( r: 0.51-0.91).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Within drug groups, indicators of drug adoption, except for adoption time, correlate reasonably well. However, the theory that physicians' early adoption of new drugs is a personal trait independent of the type of drug could not be confirmed. The notion of the early-drug-adopting general practitioner may be mistaken. ##Answer: no

Question: Does high blood pressure reduce the risk of chronic low back pain? Context: [Epidemiological studies have suggested inverse relationships between blood pressure and prevalence of conditions such as migraine and headache. It is not yet clear whether similar relationships can be established for back pain in particular in prospective studies.]...[Associations between blood pressure and chronic low back pain were explored in the cross-sectional HUNT 2 survey of a Norwegian county in 1995-1997, including 39,872 individuals who never used antihypertensive medication. A prospective study, comprising 17,209 initially back pain-free individuals and 5740 individuals reporting low back pain, was established by re-examinations in the HUNT 3 survey in 2006-2008. Associations were assessed by logistic regression with respect to systolic, diastolic and pulse pressure, with adjustment for education, work status, physical activity, smoking, body mass and lipid levels.]...[In the cross-sectional study, all three blood pressure measures showed inverse relationships with prevalence of low back pain in both sexes. In the prospective study of disease-free women, baseline pulse pressure and systolic pressure were inversely associated with risk of low back pain [odds ratio (OR) 0.93 per 10 mm Hg increase in pulse pressure, 95% confidence interval (CI) 0.89-0.98, p = 0.007; OR 0.95 per 10 mm Hg increase in systolic pressure, 95% CI 0.92-0.99, p = 0.005]. Results among men were equivocal. No associations were indicated with the occurrence of pain in individuals with low back pain at baseline.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Results for low back pain are consistent with the theory of hypertension-associated hypalgesia, predicting diminished pain sensitivity with increasing blood pressure, possibly with modified reactions in people suffering from long-lasting pain. ##Answer: yes

Question: Does responsibility affect the public's valuation of health care interventions? Context: [Health services often spend more on safety interventions than seems cost-effective. This study investigates whether the public value safety-related health care improvements more highly than the same improvements in contexts where the health care system is not responsible.]...[An online survey was conducted to elicit the relative importance placed on preventing harms caused by 1) health care (hospital-acquired infections, drug administration errors, injuries to health care staff), 2) individuals (personal lifestyle choices, sports-related injuries), and 3) nature (genetic disorders). Direct valuations were obtained from members of the public by using a person trade-off or "matching" method. Participants were asked to choose between two preventative interventions of equal cost and equal health benefit per person for the same number of people, but differing in causation. If participants indicated a preference, their strength of preference was measured by using person trade-off.]...[Responses were obtained from 1030 people, reflecting the sociodemographic mix of the UK population. Participants valued interventions preventing hospital-acquired infections (1.31) more highly than genetic disorders (1.0), although drug errors were valued similarly to genetic disorders (1.07), and interventions to prevent injury to health care staff were given less weight than genetic disorders (0.71). Less weight was also given to interventions related to lifestyle (0.65) and sports injuries (0.41).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Our results suggest that people do not attach a simple fixed premium to "safety-related" interventions but that preferences depend more subtly on context. The use of the results of such public preference surveys to directly inform policy would therefore be premature. ##Answer: maybe

Question: Nasal fractures: is closed reduction satisfying? Context: [This study aims to evaluate the efficacy of closed reduction and the effects of timing and fracture types on patient satisfaction.]...[Only patients with isolated nasal fractures were included in the study. Patients with additional maxillofacial fractures and patients whose application time to our clinic was more than 10 days after the trauma were excluded. Patients were classified into 5 types according to their fracture. All patients underwent closed reduction and external fixation under local anesthesia. Patients were asked about their satisfaction in a survey at 28th day and sixth month after the surgery. Patients were divided into groups according to fracture type and intervention time, and the results of the survey were evaluated.]...[Of the 43 patients included in the study, 38 were male, 5 were female, and the average age was 24.9. The average intervention time of the patients was 5.44 days. Twenty-eight (65%) of 43 patients were satisfied with the result, whereas 15 (35%) patients were not happy with their operation. In a comparison of patient satisfaction rates according to fracture type, the mild fracture group had a higher satisfaction rate compared to the severe fracture group.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Closed reduction is an easy and sufficient treatment for nasal fractures, especially for mild nasal fractures. Early intervention raises the patient satisfaction rate. ##Answer: yes

Question: Do improvements in outreach, clinical, and family and community-based services predict improvements in child survival? Context: [There are three main service delivery channels: clinical services, outreach, and family and community. To determine which delivery channels are associated with the greatest reductions in under-5 mortality rates (U5MR), we used data from sequential population-based surveys to examine the correlation between changes in coverage of clinical, outreach, and family and community services and in U5MR for 27 high-burden countries.]...[Household survey data were abstracted from serial surveys in 27 countries. Average annual changes (AAC) between the most recent and penultimate survey were calculated for under-five mortality rates and for 22 variables in the domains of clinical, outreach, and family- and community-based services. For all 27 countries and a subset of 19 African countries, we conducted principal component analysis to reduce the variables into a few components in each domain and applied linear regression to assess the correlation between changes in the principal components and changes in under-five mortality rates after controlling for multiple potential confounding factors.]...[AAC in under 5-mortality varied from 6.6% in Nepal to -0.9% in Kenya, with six of the 19 African countries all experiencing less than a 1% decline in mortality. The strongest correlation with reductions in U5MR was observed for access to clinical services (all countries: p = 0.02, r² = 0.58; 19 African countries p<0.001, r² = 0.67). For outreach activities, AAC U5MR was significantly correlated with antenatal care and family planning services, while AAC in immunization services showed no association. In the family- and community services domain, improvements in breastfeeding were associated with significant changes in mortality in the 30 countries but not in the African subset; while in the African countries, nutritional status improvements were associated with a significant decline in mortality.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Our findings support the importance of increasing access to clinical services, certain outreach services and breastfeeding and, in Africa, of improving nutritional status. Integrated programs that emphasize these services may lead to substantial mortality declines. ##Answer: yes

Question: Does spontaneous remission occur in polyarteritis nodosa? Context: [Polyarteritis nodosa (PAN) is a systemic vasculitis involving mainly medium-sized arteries and, rarely, small-sized arteries. The diagnosis is principally based on clinical exams, biopsy of an affected organ, and/or arteriography of renal or mesenteric arteries. Once diagnosed, immunosuppressive agents, such as glucocorticoids and cyclophosphamide, are generally introduced as soon as possible. Whether spontaneous remission of PAN occurs is therefore largely unknown.]...[We describe the case of a 51-year-old woman who presented with a 4-day-history of intense pain in her left flank, hypertension, fever, microscopic hematuria, and acute renal failure. Contrast-enhanced renal ultrasound strongly suggested bilateral renal infarction. Medical history and an extensive workup allowed to exclude systemic embolism, recreational drug abuse, cardiac arrhythmias, and thrombophilia. A possible diagnosis of PAN was considered; however, within 2 weeks of admission, spontaneous remission of her clinical and biological symptoms occurred without the use of any immunosuppressive treatment. Finally, 3 months later, renal arteriography confirmed the diagnosis of PAN. The patient remains free of symptoms 1 year after initial presentation.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: This case illustrates the importance of considering PAN in the differential diagnosis of renal infarction with inflammatory syndrome and shows that spontaneous remission of renal PAN can occur.
. ##Answer: yes

Question: Gluten tolerance in adult patients with celiac disease 20 years after diagnosis? Context: [Celiac disease (CD) is believed to be a permanent intolerance to gluten. A number of patients, however, discontinue the gluten-free diet (GFD) without developing symptoms or signs. The aim of our study was to investigate whether CD patients are capable of developing tolerance to gluten.]...[All 77 adult patients from our hospital known to have biopsy-proven CD for more than 10 years were invited to participate. We investigated symptoms, gluten consumption, antibodies for CD and other autoimmunity, human leukocyte antigen (HLA)-typing, bone mineral density, and performed small bowel biopsies. Tolerance was defined as no immunological or histological signs of CD while consuming gluten.]...[Sixty-six patients accepted participation, but after review of the diagnostic biopsies 53 were found to have true CD. Twenty-three percent of patients had a gluten-containing diet, 15% admitted gluten transgression and 62% followed the GFD. Patients on a GFD had significantly more osteoporosis. Normal small bowel mucosa was found in four of eight on gluten-containing diet and in four of four with gluten transgression. Two patients were considered to have developed tolerance to gluten. One of them was HLA-DQ2/DQ8 negative.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Development of tolerance to gluten seems possible in some patients with CD. Further follow-up will show whether this tolerance is permanent or only a long-term return to latency. This feature may be associated with genetic characteristics, especially with HLA genotypes that differ from DQ2 or DQ8. More insight into the mechanisms of the development of gluten tolerance may help to distinguish those CD patients that might not require life-long GFD. ##Answer: maybe

Question: Do symptoms predict COPD in smokers? Context: [The US Preventive Services Task Force recommends against spirometry in the absence of symptoms. However, as much as 50% of COPD cases in the United States remain undiagnosed.]...[Report of symptoms, smoking history, and spirometric data were collected from subjects screened for a work-related medical evaluation (N = 3,955). Prevalence of airflow obstruction and respiratory symptoms were assessed. Sensitivity, specificity, positive and negative predictive values, and relative risks of predicting symptoms and smoking history for COPD were calculated.]...[Forty-four percent of smokers in our sample had airways obstruction (AO). Of these, 36% reported a diagnosis of or treatment for COPD. Odds ratio (95% CI) for AO with smoking (>or = 20 pack-years) was 3.73 (3.12- 4.45), 1.98 (1.73-2.27) for cough, 1.79 (1.55-2.08) for dyspnea, 1.95 (1.70-2.34) for sputum, and 2.59 (2.26-2.97) for wheeze. Respiratory symptoms were reported by 92% of smokers with AO, 86% smokers with restriction, 76% smokers with normal spirometry, and 73% of nonsmokers. Sensitivity (92% vs 90%), specificity (19% vs 22%), positive (47% vs 40%) and negative (75% vs 80%) predictive values for the presence of one or more symptoms were similar between smokers and all subjects.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: COPD is underdiagnosed in the United States. Symptoms are frequent in subjects with AO and increase their risk for COPD, but add little beyond age and smoking history to the predictive value of spirometry. In view of the high prevalence of symptoms and their poor predictive value, a simpler and more effective approach would be to screen older smokers. ##Answer: no

Question: Search engine as a diagnostic tool in difficult immunological and allergologic cases: is Google useful? Context: [Web search engines are an important tool in communication and diffusion of knowledge. Among these, Google appears to be the most popular one: in August 2008, it accounted for 87% of all web searches in the UK, compared with Yahoo's 3.3%. Google's value as a diagnostic guide in general medicine was recently reported. The aim of this comparative cross-sectional study was to evaluate whether searching Google with disease-related terms was effective in the identification and diagnosis of complex immunological and allergic cases.]...[Forty-five case reports were randomly selected by an independent observer from peer-reviewed medical journals. Clinical data were presented separately to three investigators, blinded to the final diagnoses. Investigator A was a Consultant with an expert knowledge in Internal Medicine and Allergy (IM&A) and basic computing skills. Investigator B was a Registrar in IM&A. Investigator C was a Research Nurse. Both Investigators B and C were familiar with computers and search engines. For every clinical case presented, each investigator independently carried out an Internet search using Google to provide a final diagnosis. Their results were then compared with the published diagnoses.]...[Correct diagnoses were provided in 30/45 (66%) cases, 39/45 (86%) cases, and in 29/45 (64%) cases by investigator A, B, and C, respectively. All of the three investigators achieved the correct diagnosis in 19 cases (42%), and all of them failed in two cases.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: This Google-based search was useful to identify an appropriate diagnosis in complex immunological and allergic cases. Computing skills may help to get better results. ##Answer: yes

Question: Uniformity of evidence-based treatments in practice? Context: [Various factors contribute to the effective implementation of evidence-based treatments (EBTs). In this study, cognitive processing therapy (CPT) was administered in a Veterans Affairs (VA) posttraumatic stress disorder (PTSD) specialty clinic in which training and supervision were provided following VA implementation guidelines. The aim was to (a) estimate the proportion of variability in outcome attributable to therapists and (b) identify characteristics of those therapists who produced better outcomes.]...[We used an archival database of veterans (n = 192) who completed 12 sessions of CPT by therapists (n = 25) who were trained by 2 nationally recognized trainers, 1 of whom also provided weekly group supervision. Multilevel modeling was used to estimate therapist effects, with therapists treated as a random factor. The supervisor was asked to retrospectively rate each therapist in terms of perceived effectiveness based on supervision interactions. Using single case study design, the supervisor was interviewed to determine what criteria she used to rate the therapists and emerging themes were coded.]...[When initial level of severity on the PTSD Checklist (PCL; McDonald&Calhoun, 2010; Weathers, Litz, Herman, Huska,&Keane, 1993) was taken into account, approximately 12% of the variability in the PCL at the end of treatment was due to therapists. The trainer, blind to the results, identified the following characteristics and actions of effective therapists: effectively addressing patient avoidance, language used in supervision, flexible interpersonal style, and ability to develop a strong therapeutic alliance.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: This study adds to the growing body of literature documenting the importance of the individual therapist as an important factor in the change process. ##Answer: yes

Question: Do approved doctors and medical referees in the UK agree when assessing a seafarer's fitness? Context: [The seafaring industry remains a hazardous occupation that requires sophisticated systems of risk and fitness assessment. This study aims to investigate the extent of agreement between Approved Doctors (ADs) and Medical Referees (MRs) when they assess a seafarer's fitness.]...[Between 2003 and 2009 a total of 232,878 seafarer medical examinations were carried out by ADs, of which 465 were considered by the MRs because the seafarer appealed against the AD's decision. The extent of agreement between ADs and MRs was studied.]...[Two hundred and sixty-eight (58%) cases seen by the ADs were classed as category 4 "permanently unfit"; the referees only placed 85 (18%) of them in this category. On the other hand, 252 (54%) cases seen by the MRs were classed as category 2 "fit with restrictions", while the ADs had only placed 111 (24%) in this category. The overall agreement between the assessors (AD vs. MR) was poor (Kappa K = 0.18).]...[For cardiovascular diseases and for mental ill-health, access to additional information by the MR was the commonest reason for changing the fitness category, but for all other conditions factors such as the experience and knowledge of the MRs or their different interpretation of the standards were the most frequent reasons for a change to fitness category or to restrictions.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: This study found that there was poor agreement between the AD's decision and the subsequent MR's decision regarding the fitness of those seafarers who decided to appeal against the AD's initial assessment. The reasons for this are considered. ##Answer: no

Question: Hepatorenal syndrome: are we missing some prognostic factors? Context: [Hepatorenal syndrome (HRS) is the functional renal failure associated with advanced cirrhosis and has also been described in fulminant hepatic failure. Without liver transplantation its prognosis is dismal. Our study included patients with type 1 HRS associated with cirrhosis, who were not liver transplant candidates.AIM: To identify variables associated with improved survival.]...[Sixty-eight patients fulfilled the revised Ascites Club Criteria for type 1 HRS. None of them was suitable for liver transplantation. All the patients were treated with combinations of: albumin, midodrine and octreotide, pressors, and hemodialysis.]...[Median survival was 13 days for the whole group. Survival varied with the end-stage liver disease (ESLD) etiology: autoimmune, 49 days, cardiac cirrhosis, 22 days, idiopathic, 15.5 days, viral, 15 days, hepatitis C and alcohol, 14.5 days, alcohol 8 days, and neoplasia 4 days (p = 0.048). Survival of HRS associated with alcoholic liver disease versus other etiologies was not statistically significant (p = 0.1). Increased serum creatinine (p = 0.02) and urinary sodium 6-10 mEq/l (p = 0.027) at the initiation of therapy were prognostic factors for mortality. HRS treatment modalities (p = 0.73), use of dialysis (p = 0.56), dialysis modality (p = 0.35), use of vasopressors (p = 0.26), pre-existing renal disease (p = 0.49), gender (p = 0.90), and age (p = 0.57) were not associated with survival.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: We report for the first time ESLD etiology as a prognostic factor for survival. The renal function (expressed as serum creatinine) and urinary Na (<5 mEq/l) at the time of diagnosis were found to be associated with survival, suggesting that early treatment might increase survival. ##Answer: yes

Question: Vaginal dose assessment in image-guided brachytherapy for cervical cancer: Can we really rely on dose-point evaluation? Context: [Although dose-volume parameters in image-guided brachytherapy have become a standard, the use of posterior-inferior border of the pubic symphysis (PIBS) points has been recently proposed in the reporting of vaginal doses. The aim was to evaluate their pertinence.]...[Nineteen patients who received image-guided brachytherapy after concurrent radiochemotherapy were included. Per treatment, CT scans were performed at Days 2 and 3, with reporting of the initial dwell positions and times. Doses delivered to the PIBS points were evaluated on each plan, considering that they were representative of one-third of the treatment. The movements of the applicator according to the PIBS point were analysed.]...[Mean prescribed doses at PIBS -2, PIBS, PIBS +2 were, respectively, 2.23 ± 1.4, 6.39 ± 6.6, and 31.85 ± 36.06 Gy. Significant differences were observed between the 5 patients with vaginal involvement and the remaining 14 at the level of PIBS +2 and PIBS: +47.60 Gy and +7.46 Gy, respectively (p = 0.023 and 0.03). The variations between delivered and prescribed doses at PIBS points were not significant. However, at International commission on radiation units and measurements rectovaginal point, the delivered dose was decreased by 1.43 ± 2.49 Gy from the planned dose (p = 0.019). The delivered doses at the four points were strongly correlated with the prescribed doses with R(2) ranging from 0.93 to 0.95. The movements of the applicator in regard of the PIBS point assessed with the Digital Imaging and Communications in Medicine coordinates were insignificant.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The doses evaluated at PIBS points are not impacted by intrafractional movements. PIBS and PIBS +2 dose points allow distinguishing the plans of patients with vaginal infiltration. Further studies are needed to correlate these parameters with vaginal morbidity. ##Answer: maybe

Question: Prescriptions as a proxy for asthma in children: a good choice? Context: [Stock et al. (Eur Respir J 25:47-53, 2005) recently estimated asthma prevalence in Germany using claims data on prescriptions and hospital diagnoses and found high prevalence peaks in infants. Our objective was to critically assess and discuss various aspects of identifying children with asthma using prescription data.]...[We replicated the selection procedure of Stock et al. using data on 290,919 children aged 0-17 years insured in the Gmünder ErsatzKasse (GEK) in 2005. Asthma prevalence was also estimated in a sample of 17,641 children aged 0-17 years participating in the German Health Interview and Examination Survey for Children and Adolescents (KiGGS) from 2003 to 2006.]...[In children aged 0-4 years insured in the GEK, prevalences were found to range from 11.7 to 17.7% for boys and from 7.2 to 11.1% for girls when the criteria of Stock et al. were applied. A steady decline in prevalences was observed in older age groups. Asthma prevalence estimated in the KiGGS data showed a quite different distribution. In the age group 0-4 years, prevalences were found to range from 0 to 2.6% in boys and from 0 to 1.0% in girls; in children>4 years, prevalences were found to increase with increasing age.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: When additional validation studies were taken into account, asthma medications were found to be prescribed not only for asthma but also for other respiratory diseases. In addition, not all children with current asthma had prescriptions. We therefore conclude that asthma medications are therefore not a good proxy for the disease. ##Answer: no

Question: Does the familial transmission of drinking patterns persist into young adulthood? Context: [Parental drinking has been shown to be associated with offspring drinking. However, the relationship appears to be more complex than often assumed and few studies have tracked it over longer time periods.]...[To explore the long-term (10-year) transmission of familial drinking during adolescence to offspring drinking patterns in young adulthood.]...[Swedish longitudinal study, assessing the relationship between familial drinking in 2000 and offspring drinking in 2010 using simultaneous quantile regression analysis (n=744).DATA: Data on familial drinking was gathered from the Swedish level-of-living surveys (LNU) and from partner LNU in 2000 while data on offspring drinking in young adulthood was gathered from LNU 2010. Drinking among offspring, parents and potential stepparents was measured through identical quantity-frequency indices referring to the past 12 months in 2010 and 2000 respectively.]...[Young adults whose families were abstainers in 2000 drank substantially less across quintiles in 2010 than offspring of non-abstaining families. The difference, however, was not statistically significant between quintiles of the conditional distribution. Actual drinking levels in drinking families were not at all or weakly associated with drinking in offspring. Supplementary analyses confirmed these patterns.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The association between familial drinking and offspring drinking in young adulthood exhibits clear non-linear trends. Changes in the lower part of the familial drinking distribution are strongly related to drinking in young adults, but the actual levels of drinking in drinking families appear less important in shaping the drinking patterns of the offspring in young adulthood. ##Answer: maybe

Question: Proof of concept study: does fenofibrate have a role in sleep apnoea syndrome? Context: [To investigate the effect of fenofibrate on sleep apnoea indices.]...[Proof-of-concept study comprising a placebo run-in period (1 week, 5 weeks if fibrate washout was required) and a 4-week randomized, double-blind treatment period. Thirty-four subjects (mean age 55 years, body mass index 34 kg/m 2 , fasting triglycerides 3.5 mmol/L) with diagnosed sleep apnoea syndrome not treated with continuous positive airways pressure were enrolled and randomized to once daily treatment with fenofibrate (145 mg NanoCrystal(R) tablet) or placebo. Overnight polysomnography, computerized attention/vigilance tests and blood sampling for measurement of lipids, insulin, fasting plasma glucose and fibrinogen were performed at the end of each study period.]...[NCT00816829.]...[As this was an exploratory study, a range of sleep variables were evaluated. The apnoea/hypopnoea index (AHI) and percentage of time spent with arterial oxygen saturation (SpO(2))<90% were relevant as they have been evaluated in other clinical trials. Other variables included total apnoeas, hypopnoeas and oxygen desaturations, and non-cortical micro-awakenings related to respiratory events per hour.]...[Fenofibrate treatment significantly reduced the percentage of time with SpO(2)<90% (from 9.0% to 3.5% vs. 10.0% to 11.5% with placebo, p = 0.007), although there was no significant change in the AHI (reduction vs. control 14% (95%CI -47 to 40%, p = 0.533). Treatment reduced obstructive apnoeas (by 44%, from 18.5 at baseline to 15.0 at end of treatment vs. 29.0 to 30.5 on placebo, p = 0.048), and non-cortical micro-awakenings per hour (from 23.5 to 18.0 vs. 24.0 to 25.0 with placebo, p = 0.004). Other sleep variables were not significantly influenced by fenofibrate.]...[Exploratory study in patients with mild to moderate sleep apnoea, limited treatment duration; concomitant hypnotic treatment (35%); lack of correction for multiplicity of testing.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The consistent direction of change in sleep indices in this proof-of-concept study may support further investigation of fenofibrate in moderate to severe sleep apnoea syndrome. ##Answer: yes

Question: Can mental imagery functional magnetic resonance imaging predict recovery in patients with disorders of consciousness? Context: [To determine the potential prognostic value of using functional magnetic resonance imaging (fMRI) to identify patients with disorders of consciousness, who show potential for recovery.]...[Observational study.]...[Unit for acute rehabilitation care.]...[Patients (N=22) in a vegetative state (VS; n=10) and minimally conscious state (MCS; n=12) during the first 200 days after the initial incident.]...[Not applicable.]...[Further course on the Coma Recovery Scale-Revised.]...[Participants performed a mental imagery fMRI paradigm. They were asked to alternately imagine playing tennis and navigating through their home. In 14 of the 22 examined patients (VS, n=5; MCS, n=9), a significant activation of the regions of interest (ROIs) of the mental imagery paradigm could be found. All 5 patients with activation of a significant blood oxygen level dependent signal, who were in a VS at the time of the fMRI examination, reached at least an MCS at the end of the observation period. In contrast, 5 participants in a VS who failed to show activation in ROIs, did not (sensitivity 100%, specificity 100%). Six of 9 patients in an MCS with activation in ROIs emerged from an MCS. Of 3 patients in an MCS who did not show activation, 2 patients stayed in an MCS and 1 patient emerged from the MCS (sensitivity 85%, specificity 40%).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: The fMRI paradigm mental imagery displays a high concordance with the further clinical course of patients in a VS. All 5 patients in a VS who showed significant activation of ROIs had a favorable further course until the end of the observation period. We therefore propose the term "functional minimally conscious state" for these patients. They may benefit from rehabilitation treatment. In cases where no significant activation was seen, the method has no prognostic value. Prediction of the clinical course of patients in an MCS by fMRI was considerably less accurate than in patients in a VS. ##Answer: yes

Question: The nurse cystoscopist: a feasible option? Context: [To compare the accuracy achieved by a trained urology nurse practitioner (UNP) and consultant urologist in detecting bladder tumours during flexible cystoscopy.]...[Eighty-three patients underwent flexible cystoscopy by both the UNP and consultant urologist, each unaware of the other's findings. Before comparing the findings, each declared whether there was tumour or any suspicious lesion requiring biopsy.]...[Of 83 patients examined by flexible cystoscopy, 26 were found to have a tumour or a suspicious lesion. One tumour was missed by the UNP and one by the urologist; each tumour was minute. Analysis using the chance-corrected proportional agreement (Kappa) was 0.94, indicating very close agreement.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: A UNP can be trained to perform cystoscopy and detect suspicious lesions as accurately as can a consultant urologist. Legal and training issues in implementation are important. ##Answer: yes

Question: Is cardiovascular evaluation necessary prior to and during beta-blocker therapy for infantile hemangiomas? Context: [Although consensus guidelines for pretreatment evaluation and monitoring of propranolol therapy in patients with infantile hemangiomas (IH) have been formulated, little is known about the cardiovascular side effects.]...[We sought to analyze cardiovascular evaluations in patients with IH at baseline and during treatment with an oral beta-blocker.]...[Data from 109 patients with IH were retrospectively analyzed. Patient and family history, pretreatment electrocardiogram (ECG), heart rate, and blood pressure were evaluated before initiation of beta-blocker therapy. Blood pressure and standardized questionnaires addressing side effects were evaluated during treatment.]...[Questionnaire analyses (n = 83) identified 3 cases with a family history of cardiovascular disease in first-degree relatives. ECG findings were normal in each case and no serious complication of therapy occurred. ECG abnormalities were found in 6.5% of patients but there were no contraindications to beta-blocker therapy and no major complications. Hypotension in 9 patients did not require therapy adjustment. In all, 88 parents (81%) reported side effects during beta-blocker treatment.]...[The relatively small patient cohort is a limitation.] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: Pretreatment ECG is of limited value for patients with an unremarkable cardiovascular history and a normal heart rate and blood pressure. Hypotension may occur during treatment. ##Answer: no

Question: Is specialty care associated with improved survival of patients with congestive heart failure? Context: [Implementation of the complex treatment strategies that have been shown to improve survival of patients with congestive heart failure (CHF) may require certain expertise. We wanted to examine the association between pattern of outpatient care and survival of patients with CHF.]...[In a retrospective cohort study conducted with national Veterans Health Administration (VHA) databases, we examined the association between the pattern of outpatient care and survival in 11,661 patients discharged from VA hospitals between October 1, 1991, and September 30, 1992, with the primary diagnosis of CHF (cohort 1). Patients were divided into 4 groups, on the basis of their pattern of outpatient care over a 12-month period after discharge: 1) general medicine clinic visits only (GM-only); 2) cardiology clinic visits only (CARD-only); 3) general medicine and cardiology (MIXED) clinic visits; and 4) neither general medicine nor cardiology clinic visits (no-GM/CARD). We used the Cox proportional hazards model to evaluate 1-year survival, controlling for clinical and demographic factors. Consistency of our results was examined by performing identical analysis on a cohort of patients discharged from VHA hospitals between October 1, 1994, and September 30, 1995 (cohort 2, n = 10,141).]...[The overall 1-year mortality rate was 23% in the primary cohort. The unadjusted mortality rate was highest for patients in the no-GM/CARD follow up (29%) and lowest for patients in the MIXED group (19%). By use of the MIXED group as reference and adjusting for important clinical and demographic factors, the risk of death (risk ratio [95% CI]) was 1.12 (0.94-1.34) in the CARD-only group, 1.26 (1.15-1.38) in the GM-only group, and 1.48 (1.28-1.72) in the no-GM/CARD group. Cohort-2 results were consistent with cohort 1 for most covariates, and significant survival differences were again found between GM-only and the MIXED group (1.25 [1.14-1.37]).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: We found an improved survival associated with cardiologist care and a mixture of general practitioner and cardiologist care compared with general practitioner care. The pattern of outpatient care may therefore be important for the survival of patients with CHF. ##Answer: yes

Question: Can the prognosis of polymyalgia rheumatica be predicted at disease onset? Context: [To identify the features of PMR that may predict the duration of steroid therapy, the occurrence of relapses and the late development of GCA.]...[Prospective cohort study of 176 patients with PMR, followed up for 5 years. Baseline factors associated with the duration of steroids therapy were identified using Cox regression. Predictors of relapse and the late development of GCA were identified using binary logistic regression.]...[A total of 176 patients with PMR were included, of whom 124 stopped steroids within 5 years. The probability of stopping steroids within 5 years was independently reduced by an elevated plasma viscosity (PV) [hazard ratio (HR) = 0.49; 95% CI 0.29, 0.82 for a PV>or = 2.00 mPa s compared with a PV<or = 1.80 mPa s; overall P = 0.024] and by starting treatment at>15 mg prednisolone (HR = 0.63; 95% CI 0.41, 0.97; P = 0.036). Either of these independently reduced the chances of stopping steroids within a given time interval between 27 and 51%. No significant predictors of relapse were identified. Predictors of late GCA on univariable analysis were female sex [odds ratio (OR) = 8.16; 95% CI 1.06, 63.13; P = 0.044], HLA-DRB1*0101 or -*0401 alleles (OR = 4.95; 95% CI 1.05, 23.34; P = 0.043), PV>or = 2.00 mPa s compared with PV<or = 1.80 mPa s (OR = 10.64; 95% CI 1.28, 88.38; P = 0.029) and initial prednisolone dose>15 mg (OR = 4.53; 95% CI 1.61, 12.79; P = 0.004).] Instruction: Given the question, context and answer above, provide a logical reasoning for that answer. Please use the format of: ##Reason: reason ##Answer: answer.

##Reason: A higher PV in PMR increases the risk of prolonged steroid therapy and late GCA. Female sex and particular HLA alleles may increase the risk of late GCA. Starting patients on>15 mg prednisolone is associated with a prolonged steroid duration. ##Answer: yes