bluuebunny/crossref_metadata_2025_split huggingface dataset:
Red blood cell distribution width and platelet counts are independent prognostic factors and improve the predictive ability of IPI score in diffuse large B-cell lymphoma patients
Authors: Li Manman , Xia Hailong , Zheng Huimin , Li Yafeng , Liu Jun , Hu Linhui , Li Jingrong , Ding Yangyang , Pu Lianfang , Gui Qianle , Zheng Yijie , Zhai Zhimin , Xiong Shudao 
Published: November 2019

AbstractBackgroundElevated red blood cell distribution width (RDW) and decreased platelet count (PLT) can be clinically relevant to the prognosis in cancer patients. However, their prognostic values in patients with diffuse large B-cell lymphoma (DLBCL) need to be further explored.MethodsHealthy donors (n = 130) and patients with DLBCL (n = 349) were included and evaluated retrospectively in this study. The prognostic influence of clinical and pathological factors including RDW and PLT on overall survival (OS) and progression-free survival (PFS) were studied by Kaplan-Meier curves. To evaluate the independent prognostic relevance of RDW and PLT, univariate and multivariate Cox proportional hazards regression models were applied. The adjusted IPI model was established based on the results of multivariate analysis, and verified by Harrell’s C statistical analysis.ResultsKaplan-Meier curves indicated that an elevated RDW value and thrombocytopenia are poor factors for OS (P < 0.001,P = 0.006) and PFS (P = 0.003,P < 0.001) in DLBCL patients. Multivariate analysis confirmed that elevated RDW value (HR = 2.026, 95%CI = 1.263–3.250,P = 0.003) and decreased PLT count (HR =1.749, 95%CI = 1.010–3.028,P = 0.046) were both independent prognostic factors. The c-index of IPI and NCCN-IPI were increased when RDW level and PLT were supplemented in our cohort.ConclusionsOur study shows that elevated RDW level and decreased PLT are independent poor prognostic factors in newly diagnosed DLBCL patients. Adding RDW and PLT to the IPI score may improve its predictive ability, and the adjusted IPI may be more powerful in predicting the survival of DLBCL patients in the rituximab era.
Technical advance in targeted NGS analysis enables identification of lung cancer risk-associated low frequency TP53, PIK3CA, and BRAF mutations in airway epithelial cells
Authors: Craig Daniel J. , Morrison Thomas , Khuder Sadik A. , Crawford Erin L. , Wu Leihong , Xu Joshua , Blomquist Thomas M. , Willey James C. 
Published: November 2019

AbstractBackgroundStandardized Nucleic Acid Quantification for SEQuencing (SNAQ-SEQ) is a novel method that utilizes synthetic DNA internal standards spiked into each sample prior to next generation sequencing (NGS) library preparation. This method was applied to analysis of normal appearing airway epithelial cells (AEC) obtained by bronchoscopy in an effort to define a somatic mutation field effect associated with lung cancer risk. There is a need for biomarkers that reliably detect those at highest lung cancer risk, thereby enabling more effective screening by annual low dose CT. The purpose of this study was to test the hypothesis that lung cancer risk is characterized by increased prevalence of low variant allele frequency (VAF) somatic mutations in lung cancer driver genes in AEC.MethodsSynthetic DNA internal standards (IS) were prepared for 11 lung cancer driver genes and mixed with each AEC genomic (g) DNA specimen prior to competitive multiplex PCR amplicon NGS library preparation. A custom Perl script was developed to separate IS reads and respective specimen gDNA reads from each target into separate files for parallel variant frequency analysis. This approach identified nucleotide-specific sequencing error and enabled reliable detection of specimen mutations with VAF as low as 5 × 10− 4(0.05%). This method was applied in a retrospective case-control study of AEC specimens collected by bronchoscopic brush biopsy from the normal airways of 19 subjects, including eleven lung cancer cases and eight non-cancer controls, and the association of lung cancer risk with AEC driver gene mutations was tested.ResultsTP53 mutations with 0.05–1.0% VAF were more prevalent (p < 0.05) and also enriched for tobacco smoke and age-associated mutation signatures in normal AEC from lung cancer cases compared to non-cancer controls matched for smoking and age. Further, PIK3CA and BRAF mutations in this VAF range were identified in AEC from cases but not controls.ConclusionsApplication of SNAQ-SEQ to measure mutations in the 0.05–1.0% VAF range enabled identification of an AEC somatic mutation field of injury associated with lung cancer risk. A biomarker comprising TP53, PIK3CA, and BRAF somatic mutations may better stratify individuals for optimal lung cancer screening and prevention outcomes.
Diagnostic accuracy of QuickVue® Dipstick Strep A test and its effect on antibiotic prescribing in children in the United Arab Emirates
Authors: Safizadeh Shabestari Seyed Ali , Malik Zainab A. , Al-Najjar Fadil Y. A. 
Published: November 2019

Abstract

Background
Unnecessary antibiotic prescription to patients with upper respiratory tract infections (URTIs) has led to the increase in antibiotics resistant bacteria rates. In this study, we evaluated the diagnostic accuracy of QuickVue® Dipstick Strep A test (QV-SAT) in children presenting with acute pharyngotonsillitis and its effect on antibiotic prescribing.

Methods
A single-gated diagnostic accuracy study of children with fever, runny nose, and tonsillitis presenting to a paediatric clinic between March 2016 and September 2018. Paired throat swabs for QV-SAT and culture were collected. None of the children received antibiotics prior to sample collection. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of the test were calculated.

Results
Two hundred four children were included in this study. 111 (54.4%) were boys and 146 (71.6%) were under the age of 5 years. QV-SAT was positive in 44 (21.6%) and throat culture was positive for Group A β- haemolytic Streptococcus (GAS) in 42 (20.6%) of the children. The results of QV-SAT were highly consistent with culture results: only 2 (0.9%) children with negative results had a positive throat culture. The sensitivity of the QV-SAT in the identification of GAS infection was 100% (95% CI 91.6%, 100%) and the NPV was 100% (95% CI 99.9%, 100%). Only 42 children ( 20.6%) were given antibiotics, while 162 (79.4%) were not.

Conclusion
The QV-SAT is a quick and reliable test that can help dramatically reduce antibiotic prescriptions to children presenting with fever and acute pharyngotonsillitis.
Relationship between segmental trunk control and gross motor development in typically developing infants aged from 4 to 12 months: a pilot study
Authors: Pin Tamis W. , Butler Penelope B. , Cheung Hon-Ming , Shum Sandra Lai-Fong 
Published: November 2019

Abstract

Background
Trunk control is generally considered to be related to gross motor development. However, this assumption has not been validated with clinical data. This pilot study was the first of its kind to examine the longitudinal development of segmental trunk control and gross motor development from 4 to 12 months of age in typically developing full-term infants.

Methods
A convenience cohort of 20 healthy full-term infants (mean gestation = 39.0 weeks, SD 1.2; mean birthweight = 2975.0 g, SD 297.0; males = 10) was recruited. All study infants were tested and scored monthly by independent assessors using the Segmental Assessment of Trunk Control and the Alberta Infant Motor Scale from 4 to 12 months of age.

Results
A developmental trend of segmental trunk control was found in the infants. Static vertical upright trunk control developed prior to active and reactive control. Statistically significant correlations were found between trunk control status and gross motor development mainly in prone and sitting positions from 8 months of age onwards (all p < 0.004, Spearman’s r ranged from 0.644 to 0.798).

Conclusions
This pilot study provides preliminary clinical evidence to support the inter-dependency between vertical upright trunk control and gross motor development in young infants, particularly as upright functional skills are gained. This suggests that a dual focus on training upright trunk control alongside gross motor skills could be of benefit in the treatment of infants with movement disorders.
Factors associated with the early termination of exclusive breastfeeding among mother-infant dyads in Samara-Logia, Northeastern Ethiopia
Authors: Beyene Amanuel Molla , Liben Misgan Legesse , Arora Amit 
Published: November 2019

Abstract

Background
The World Health Organization recommends that mothers should exclusively breastfeed their infants until 6 months of age due to the benefits for the mother and the child. There is documented evidence on exclusive breastfeeding from Ethiopia, but not specifically from Samara-Logia city administration. This study aimed to assess the factors associated with early termination of exclusive breastfeeding among mother-infant dyads in Samara-Logia, Ethiopia.

Methods
A cross-sectional study was conducted in March 2018. Data were collected on 484 randomly selected mother-infant dyads. The Kaplan Meier curve with the log-rank test was used to compare the survival difference. Cox regression models were used to identify the predictors of early termination of exclusive breastfeeding.

Results
The cumulative proportion of survival probability of exclusive breastfeeding to 6 months was 64.5%, with the median duration of 6 months. Mothers having partners with formal education [Adjusted hazard ratio (AHR): 0.58; 95% confidence interval (CI): 0.39, 0.85], receiving counseling on exclusive breastfeeding at antenatal check-up [AHR: 0.62; 95% CI: 0.43, 0.91], giving birth in a health institution [AHR: 0.50; 95% CI: 0.28, 0.88], initiating breastfeeding within the first hour [AHR: 0.41; 95% CI: 0.24, 0.68], and perceiving breast milk adequate for the first 6 months [AHR: 0.17; 95% CI: 0.12, 0.25] were associated with lower hazard of discontinuing exclusive breastfeeding before 6 months.

Conclusion
This study showed that the cumulative proportion of survival probability on exclusive breastfeeding was low in Samara-Logia city administration. Educating husbands to support their partners, strengthening infant feeding counseling, promoting institutional delivery, educating women about the benefit of early initiation of breastfeeding, and expanding urban health extension program are important to improve the duration of exclusive breastfeeding in Ethiopia.
Significant predictive factors of the severity and outcomes of the first attack of acute angioedema in children
Authors: Syue Yuan-Jhen , Li Chao-Jui , Chen Wen-Liang , Lee Tsung-Han , Huang Cheng-Chieh , Yang Mei-Chueh , Lin Chih-Ming , Wu Meng-Huan , Chou Chu-Chung , Chang Chin-Fu , Lin Yan-Ren 
Published: November 2019

Abstract

Background
The initial episode of angioedema in children can be potential life-threatening due to the lack of prompt identification and treatment. We aimed to analyze the factors predicting the severity and outcomes of the first attack of acute angioedema in children.

Methods
This was a retrospective study with 406 children (< 18 years) who presented in the emergency department (ED) with an initial episode of acute angioedema and who had subsequent follow-up visits in the out-patient department from January 2008 to December 2014. The severity of the acute angioedema was categorized as severe (requiring hospital admission), moderate (requiring a stay in the short-term pediatric observation unit [POU]), or mild (discharged directly from the ED). The associations among the disease severity, patient demographics and clinical presentation were analyzed.

Result
In total, 109 (26.8%) children had severe angioedema, and the majority of those children were male (65.1%). Most of the children were of preschool age (56.4%), and only 6.4% were adolescents. The co-occurrence of pyrexia or urticaria, etiologies of the angioedema related to medications or infections, the presence of respiratory symptoms, and a history of allergies (asthma, allergic rhinitis) were predictors of severe angioedema (all p < 0.05). Finally, the duration of angioedema was significantly shorter in children who had received short-term POU treatment (2.1 ± 1.1 days) than in those who discharged from ED directly (2.3 ± 1.4 days) and admitted to the hospital (3.5 ± 2.0 days) (p < 0.001).

Conclusion
The co-occurrence of pyrexia or urticaria, etiologies related to medications or infections, the presence of respiratory symptoms, and a history of allergies were predictors of severe angioedema. More importantly, short-term POU observation and prompt treatment might be benefit for patients who did not require hospital admission.
Demographic characteristics and spatial clusters of recent HIV-1 infections among newly diagnosed HIV-1 cases in Yunnan, China, 2015
Authors: Chen Min , Ma Yanling , Chen Huichao , Dai Jie , Luo Hongbing , Yang Chaojun , Dong Lijuan , Jin Xiaomei , Yang Min , Yang Li , Song Lijun , Jia Manhong , Song Zhizhong 
Published: November 2019

Abstract

Background
The characteristics of recent HIV infections can provide the information about the dynamics of HIV transmission. Yunnan is one of the provinces hardest-hit by HIV-1 in China. To further understand the characteristics of the HIV-1 epidemic in Yunnan, we analyzed the prevalence of recent HIV-1 infections among newly diagnosed cases, identified the associated factors and explored the spatial distribution of recent HIV-1 infections.

Methods
Residual plasma samples from HIV-1 diagnostic tests were preserved. The associated information was collected from China HIV/AIDS case reporting system. Recent HIV-1 infections were estimated by combining the information about disease progression and BED- capture enzyme immunoassay (CEIA). The proportions of recent HIV-1 infections among newly diagnosed cases stratified by demographic characteristics were analyzed. The spatial clusters of recent HIV-1 infections were investigated by spatial scan statistics.

Results
Among 6119 HIV/AIDS cases were newly reported between January 2015 and June 2015 in Yunnan Province, 9.3% (570/6119) were estimated as recent infections. Female, aged below 25 years and homosexual contact were more associated with the higher proportion of recent HIV-1 infections. Among the different demographic sub-groups, men who have sex with men (MSM) aged < 25 years and ≥ 50 years had a higher chance of being diagnosed as recent infections, heterosexually infected men aged ≥25 years had a lower chance of being diagnosed as recent infections. In the sub-groups with different screening approaches, the highest proportion of recent infections (16.1%) was found among women diagnosed by testing during pregnancy and childbirth. In the sub-groups with different contact histories, the higher proportion of recent infections was found among the female cases having commercial heterosexual contacts (16.4%) and MSM (19.7%). The statistically significant spatial clusters of recent infections attributed to heterosexual contact, homosexual contact and intravenous drug injection were identified, respectively.

Conclusions
The investigation of recent HIV infections among newly diagnosed cases supplements the routine HIV surveillance, and reveals the characteristics of ongoing HIV transmission. Our finding identified the potential sub-populations and geographic areas in need of services or improved interventions.
Research protocol of two concurrent cluster-randomized trials: Real-life Effect of a CAMPaign with Measles Vaccination (RECAMP-MV) and Real-life Effect of a CAMPaign with Oral Polio Vaccination (RECAMP-OPV) on mortality and morbidity among children in rural Guinea-Bissau
Authors: Varma A. , Jensen A. K. G. , Thysen S. M. , Pedersen L. M. , Aaby P. , Fisker A. B. 
Published: November 2019

AbstractBackgroundMeasles and oral polio vaccinations may reduce child mortality to an extent that cannot be explained by prevention of measles and polio infections; these vaccines seem to have beneficial non-specific effects. In the last decades, billions of children worldwide have received measles vaccine (MV) and oral polio vaccine (OPV) through campaigns. Meanwhile the under-five child mortality has declined. Past MV and OPV campaigns may have contributed to this decline, even in the absence of measles and polio infections. However, cessation of these campaigns, once their targeted infections are eradicated, may reverse the decline in the under-five child mortality. No randomized trial has assessed the real-life effect of either campaign on child mortality and morbidity. We present the research protocol of two concurrent trials: RECAMP-MV and RECAMP-OPV.MethodsBoth trials are cluster-randomized trials among children registered in Bandim Health Project’s rural health and demographic surveillance system throughout Guinea-Bissau. RECAMP-MV is conducted among children aged 9–59 months and RECAMP-OPV is conducted among children aged 0–8 months. We randomized 222 geographical clusters to intervention or control clusters. In intervention clusters, children are offered MV or OPV (according to age at enrolment) and a health check-up. In control clusters, children are offered only a health check-up. Enrolments began in November 2016 (RECAMP-MV) and March 2017 (RECAMP-OPV). We plan 18,000 enrolments for RECAMP-MV with an average follow-up period of 18 months and 10,000 enrolments for RECAMP-OPV with an average follow-up period of 10 months. Data collection is ongoing. The primary outcome in both trials is non-accidental death or non-accidental first non-fatal hospitalization with overnight stay (composite outcome). Secondary outcomes are: non-accidental death, repeated non-fatal hospitalizations with overnight stay, cause-specific primary outcome, outpatient visit, and illness. We obtained ethical approval from Guinea-Bissau and consultative approval from Denmark.DiscussionCluster randomization and minimum risk of loss to follow-up are strengths, and no placebo a limitation. Our trials challenge the understanding that MV and OPV only prevent measles and polio, and that once both infections are eradicated, campaigns with MV and OPV can be phased out without negative implications on child health and survival.Trial registrationNCT03460002.
Impact of health education intervention on knowledge and perception of cervical cancer and screening for women in Ghana
Authors: Ebu Nancy Innocentia , Amissah-Essel Salome , Asiedu Christiana , Akaba Selorm , Pereko Kingsley Asare 
Published: November 2019

AbstractBackgroundThe burden of cervical cancer continues to rise in developing economies. Women in the sub-Saharan African region have higher chances of developing cervical cancer due to a greater prevalence of related risk factors. The purpose of this study was to determine the effect of health education intervention on cervical cancer and screening perceptions of women in the Komenda, Edina, Eguafo, and Abirem (K.E.E.A) District in the Central Region of Ghana.MethodsA non-equivalent control-group design was used to select church women; 396 in the intervention group and 386 in the control group, aged 11 to 70 years in the K.E.E.A District in the Central Region of Ghana. Data was collected via a validated structured interview schedule and analysed using the paired - and independent-samples t-tests, Kruskal-Wallis test, and Mann-Whitney U test.ResultsA comparison of the mean differences between the pre-post-test scores for the intervention and control groups showed a statistically significant difference for knowledge of cervical cancer (t = 6.22, df = 780,p = 0.001), knowledge of cervical cancer screening (t = 5.96, df = 780,p = 0.001), perceived seriousness (t = 3.36, df = 780,p = 0.001), perceived benefits (t = 9.19, df = 780,p = 0.001), and perceived barriers (t = 3.19, df = 780,p = 0.001). However, perceived susceptibility for the intervention group reduced, evidenced by a decrease in the mean (mean = − 0.12) compared to the control group (mean = 0.93) and this was statistically significant (t = 2.72, df = 780,p = 0.007).ConclusionsHealth education interventions are critical in improving knowledge and perceptions, and increasing self-efficacy of women about cervical cancer and screening.Trial registrationISRCTN Registry: Current Controlled Trials,ISRCTN13468198. Registered 22 March 2019.
Reference value for expiratory time constant calculated from the maximal expiratory flow-volume curve
Authors: Ikeda Takamitsu , Yamauchi Yasuhiro , Uchida Kanji , Oba Koji , Nagase Takahide , Yamada Yoshitsugu 
Published: November 2019

Abstract

Background
The expiratory time constant (RCEXP), which is defined as the product of airway resistance and lung compliance, enable us to assess the mechanical properties of the respiratory system in mechanically ventilated patients. Although RCEXP could also be applied to spontaneously breathing patients, little is known about RCEXP calculated from the maximal expiratory flow-volume (MEFV) curve. The aim of our study was to determine the reference value for RCEXP, as well as to investigate the association between RCEXP and other respiratory function parameters, including the forced expiratory volume in 1 s (FEV1)/ forced vital capacity (FVC) ratio, maximal mid-expiratory flow rate (MMF), maximal expiratory flow at 50 and 25% of FVC (MEF50 and MEF25, respectively), ratio of MEF50 to MEF25 (MEF50/MEF25).

Methods
Spirometric parameters were extracted from the records of patients aged 15 years or older who underwent pulmonary function testing as a routine preoperative examination before non-cardiac surgery at the University of Tokyo Hospital. RCEXP was calculated in each patient from the slope of the descending limb of the MEFV curve using two points corresponding to MEF50 and MEF25. Airway obstruction was defined as an FEV1/FVC and FEV1 below the statistically lower limit of normal.

Results
We retrospectively analyzed 777 spirometry records, and 62 patients were deemed to have airway obstruction according to Japanese spirometric reference values. The cut-off value for RCEXP was 0.601 s with an area under the receiver operating characteristic curve of 0.934 (95% confidence interval = 0.898–0.970). RCEXP was strongly associated with FEV1/FVC, and was moderately associated with MMF and MEF50. However, RCEXP was less associated with MEF25 and MEF50/MEF25.

Conclusions
Our findings suggest that an RCEXP of longer than approximately 0.6 s can be linked to the presence of airway obstruction. Application of the concept of RCEXP to spontaneously breathing subjects was feasible, using our simple calculation method.