bluuebunny/crossref_metadata_2025_split huggingface dataset:
Twenty-year outcomes in patients with newly diagnosed glaucoma: mortality and visual function
Authors: King Christopher , Sherwin Justin C , Ratnarajan Gokulan , Salmon John F 
Published: March 2018

Background/aimsTo determine the mortality within 20 years of diagnosis of chronic open-angle glaucoma (COAG) and visual acuity and visual field progression of a cohort followed for 20 years.MethodsTwenty years following the diagnosis of COAG in 68 of 436 (16%) patients seen in a glaucoma case-finding clinic, visual and mortality outcomes were audited from medical records. Causes of death were obtained from general practitioner records and death certificates. Probability of death was calculated using a Kaplan-Meier survival curve. The visual field of each eye of survivors was graded using a nine-stage severity scale. Visual outcome was analysed at the 20-year follow-up visit.ResultsFrom 68, 14 (21%) were lost to follow-up. In the remaining 54, 20 (37%) were alive 20 years after diagnosis. Of 63% who died, mean age of death was 84 years, most commonly due to vascular disease. Mean age at presentation of those who died was 73.7 years versus 63.2 years for survivors (P=0.001). The median time to death was 16 years. On visual field analysis, nearly half (48.9%) of eyes did not deteriorate, but 28.3% eyes deteriorated by more than two stages. Those who died had worse final visual acuity than survivors (P<0.001). Three who died were registered severely visually impaired mainly from macular disease, but no survivors were registered (P<0.001).ConclusionIn this cohort, approximately two-thirds of patients with glaucoma died within 20 years of diagnosis. In most older patients with glaucoma, the overall goal of preventing visual handicap and blindness is achievable 20 years after diagnosis.
A new model of exercise referral scheme in primary care: is the effect on adherence to physical activity sustainable in the long term? A 15-month randomised controlled trial
Authors: Martín-Borràs Carme , Giné-Garriga Maria , Puig-Ribera Anna , Martín Carlos , Solà Mercè , Cuesta-Vargas Antonio I 
Published: March 2018

IntroductionStudies had not yet overcome the most relevant barriers to physical activity (PA) adherence. An exercise referral scheme (ERS) with mechanisms to promote social support might enhance adherence to PA in the long term.SettingA randomised controlled trial in 10 primary care centres in Spain.ObjectiveTo assess the effectiveness of a primary care-based ERS linked to municipal resources and enhancing social support and social participation in establishing adherence to PA among adults over a 15-month period.Participants422 insufficiently active participants suffering from at least one chronic condition were included. 220 patients (69.5 (8.4) years; 136 women) were randomly allocated to the intervention group (IG) and 202 (68.2 (8.9) years; 121 women) to the control group (CG).InterventionsThe IG went through a 12-week standardised ERS linked to community resources and with inclusion of mechanisms to enhance social support. The CG received usual care from their primary care practice.OutcomesThe main outcome measure was self-report PA with the International Physical Activity Questionnaire and secondary outcomes included stages of change and social support to PA practice.Data collectionParticipant-level data were collected via questionnaires at baseline, and at months 3, 9 and 15.BlindingThe study statistician and research assessors were blinded to group allocation.ResultsCompared with usual care, follow-up data at month 15 for the ERS group showed a significant increase of self-reported PA (IG: 1373±1845 metabolic equivalents (MET) min/week, n=195; CG: 919±1454 MET min/week, n=144; P=0.009). Higher adherence (in terms of a more active stage of change) was associated with higher PA level at baseline and with social support.ConclusionsPrescription from ordinary primary care centres staff yielded adherence to PA practice in the long term. An innovative ERS linked to community resources and enhancing social support had shown to be sustainable in the long term.Trial registration numberNCT00714831; Results.
Economic burden of cirrhosis in Catalonia: a population-based analysis
Authors: Miquel Mireia , Clèries Montserrat , Vergara Mercedes , Vela Emili 
Published: March 2018

BackgroundCirrhosis is a chronic disease with high morbidity and mortality. Few studies have evaluated healthcare resource use in patients with cirrhosis.ObjectiveWe aimed to describe the point prevalence of cirrhosis on 31 December 2012 and the population-level distribution of healthcare resource use and expenditures in a non-selected population of patients with cirrhosis, stratified by whether their disease was compensated or decompensated, and by comorbidity burden.MethodsThis population study included all known patients aged >18 years with cirrhosis (according to International Classification of Diseases, ninth revision) in Catalonia, Spain, on 31 December 2012. We evaluated healthcare resource use and expenditure during 2013, taking into account the presence of decompensation before or during 2012.ResultsWe documented 34 740 patients diagnosed with cirrhosis (58.7% men; mean age 61.8±14 years), yielding a point prevalence of 460 per 100 000 inhabitants on 31 December 2012. Annual mortality was 9.1%. During 2013, healthcare expenditures on patients with cirrhosis totalled €142.1 million (€4234 per patient), representing 1.8% of the total 2013 healthcare budget of Catalonia. Hospitalisation costs accounted for 35.1% of the total expenditure and outpatient care accounted for 22.4%. MultivariateMultivariate logistic regression identified morbidity burden, HIV infection, hospitalisation and emergency room visits during 2012 as independent predictors of expenditure above the 85th centile (area under the receiver operating curve, 0.88 (95% CI 0.883 to 0.893, P<0.001)).ConclusionsCirrhosis accounts for a high proportion of healthcare resource usage and expenditures; hospitalisation accounted for the highest expenditures.
An electronic health records cohort study on heart failure following myocardial infarction in England: incidence and predictors
Authors: Gho Johannes M I H , Schmidt Amand F , Pasea Laura , Koudstaal Stefan , Pujades-Rodriguez Mar , Denaxas Spiros , Shah Anoop D , Patel Riyaz S , Gale Chris P , Hoes Arno W , Cleland John G , Hemingway Harry , Asselbergs Folkert W 
Published: March 2018

ObjectivesTo investigate the incidence and determinants of heart failure (HF) following a myocardial infarction (MI) in a contemporary cohort of patients with MI using routinely collected primary and hospital care electronic health records (EHRs).MethodsData were used from the CALIBER programme, linking EHRs in England from primary care, hospital admissions, an MI registry and mortality data. Subjects were eligible if they were 18 years or older, did not have a history of HF and survived a first MI. Factors associated with time to HF were examined using Cox proportional hazard models.ResultsOf the 24 479 patients with MI, 5775 (23.6%) developed HF during a median follow-up of 3.7 years (incidence rate per 1000 person-years: 63.8, 95% CI 62.2 to 65.5). Baseline characteristics significantly associated with developing HF were: atrial fibrillation (HR 1.62, 95% CI 1.51 to 1.75), age (per 10 years increase: 1.45, 1.41 to 1.49), diabetes (1.45, 1.35 to 1.56), peripheral arterial disease (1.38, 1.26 to 1.51), chronic obstructive pulmonary disease (1.28, 1.17 to 1.40), greater socioeconomic deprivation (5th vs 1st quintile: 1.27, 1.13 to 1.41), ST-segment elevation MI at presentation (1.19, 1.11 to 1.27) and hypertension (1.16, 1.09 to 1.23). Results were robust to various sensitivity analyses such as competing risk analysis and multiple imputation.ConclusionIn England, one in four survivors of a first MI develop HF within 4 years. This contemporary study demonstrates that patients with MI are at considerable risk of HF. Baseline patient characteristics associated with time until HF were identified, which may be used to target preventive strategies.
Prevalence of xenobiotic substances in first-trimester blood samples from Danish pregnant women: a cross-sectional study
Authors: Aagaard Sissel Kramer , Larsen Agnete , Andreasen Mette Findal , Lesnikova Iana , Telving Rasmus , Vestergaard Anna Louise , Tørring Niels , Uldbjerg Niels , Bor Pinar 
Published: March 2018

ObjectiveThe aim of this study was to investigate the prevalence of xenobiotic substances, such as caffeine, nicotine and illicit drugs (eg, cannabis and cocaine), in blood samples from first-trimester Danish pregnant women unaware of the screening.DesignA cross-sectional study examined 436 anonymised residual blood samples obtained during 2014 as part of the nationwide prenatal first-trimester screening programme. The samples were analysed by ultra performance liquid chromatography with high-resolution time-of-flight mass spectrometry.SettingAn antenatal clinic in a Danish city with 62 000 inhabitants, where >95% of pregnant women joined the screening programme.Primary and secondary outcome measuresThe prevalence and patterns of caffeine, nicotine, medication and illicit drug intake during the first trimester of pregnancy.ResultsThe prevalence of prescription and over-the-counter drug detection was 17.9%, including acetaminophen (8.9%) and antidepressants (3.0%), of which citalopram (0.9%) was the most frequent. The prevalence of illegal drugs, indicators of smoking (nicotine/cotinine) and caffeine was 0.9%, 9.9%, and 76.4%, respectively. Only 17.4% of women had no substance identified in their sample.ConclusionsThis study emphasises the need for further translational studies investigating lifestyle habits during pregnancy, as well as the underlying molecular mechanisms through which xenobiotic substances may affect placental function and fetal development.
Prevalence of coronary artery calcification in a non-specific chest pain population in emergency and cardiology departments compared with the background population: a prospective cohort study in Southern Denmark with 12-month follow-up of cardiac endpoints
Authors: Ilangkovan Nivethitha , Mogensen Christian Backer , Mickley Hans , Lassen Annmarie Touborg , Lambrechtsen Jess , Sand Niels Peter Ronnow , Albiniussen Rasmus , Byg Jørgen , Hald Flemming , Grønhøj Mette Hjortdal , Diederichsen Axel 
Published: March 2018

ObjectivesTo examine and compare the prevalence of coronary artery calcification (CAC) and the frequency of cardiac events in a background population and a cohort of patients with non-specific chest pain (NSCP) who present to an emergency or cardiology department and are discharged without an obvious reason for their symptom.DesignA double-blinded, prospective, observational cohort study that measures both CT-determined CAC scores and cardiac events after 1 year of follow-up.SettingEmergency and cardiology departments in the Region of Southern Denmark.SubjectsIn total, 229 patients with NSCP were compared with 722 patients from a background comparator population.Main outcomes measuresPrevalence of CAC and incidence of unstable angina (UAP), acute myocardial infarction (MI), ventricular tachycardia (VT), coronary revascularisation and cardiac-related mortality 1 year after index contact.ResultsThere was no significant difference in the prevalence of CAC (OR 0.9 (95% CI 0.6 to 1.3), P=0.546) or the frequency of cardiac endpoints (P=0.64) between the studied groups. When compared with the background population, the OR for patients with NSCP for a CAC >100 Agatston units (AU) was 1.0 (95% CI 0.6 to 1.5), P=0.826. During 1 year of follow-up, two (0.9%) patients with NSCP underwent cardiac revascularisation, while none experienced UAP, MI, VT or death. In the background population, four (0.6%) participants experienced a clinical cardiac endpoint; two had an MI, one had VT and one had a cardiac-related death.ConclusionThe prevalence of CAC (CAC >0 AU) among patients with NSCP is comparable to a background population and there is a low risk of a cardiac event in the first year after discharge. A CAC study does not provide notable clinical utility for risk-stratifying patients with NSCP.Trial registration numberNCT02422316; Pre-results.
Intertester reliability of clinical shoulder instability and laxity tests in subjects with and without self-reported shoulder problems
Authors: Eshoj Henrik , Ingwersen Kim Gordon , Larsen Camilla Marie , Kjaer Birgitte Hougs , Juul-Kristensen Birgit 
Published: March 2018

ObjectiveFirst, to investigate the intertester reliability of clinical shoulder instability and laxity tests, and second, to describe the mutual dependency of each test evaluated by each tester for identifying self-reported shoulder instability and laxity.MethodsA standardised protocol for conducting reliability studies was used to test the intertester reliability of the six clinical shoulder instability and laxity tests: apprehension, relocation, surprise, load-and-shift, sulcus sign and Gagey. Cohen’s kappa (κ) with 95% CIs besides prevalence-adjusted and bias-adjusted kappa (PABAK), accounting for insufficient prevalence and bias, were computed to establish the intertester reliability and mutual dependency.ResultsForty individuals (13 with self-reported shoulder instability and laxity-related shoulder problems and 27 normal shoulder individuals) aged 18–60 were included. Fair (relocation), moderate (load-and-shift, sulcus sign) and substantial (apprehension, surprise, Gagey) intertester reliability were observed across tests (κ 0.39–0.73; 95% CI 0.00 to 1.00). PABAK improved reliability across tests, resulting in substantial to almost perfect intertester reliability for the apprehension, surprise, load-and-shift and Gagey tests (κ 0.65–0.90). Mutual dependencies between each test and self-reported shoulder problem showed apprehension, relocation and surprise to be the most often used tests to characterise self-reported shoulder instability and laxity conditions.ConclusionsFour tests (apprehension, surprise, load-and-shift and Gagey) out of six were considered intertester reliable for clinical use, while relocation and sulcus sign tests need further standardisation before acceptable evidence. Furthermore, the validity of the tests for shoulder instability and laxity needs to be studied.
Prediabetes in pregnancy, can early intervention improve outcomes? A feasibility study for a parallel randomised clinical trial
Authors: Hughes Ruth C E , Rowan Janet , Williman Jonathan 
Published: March 2018

ObjectiveMeasurement of glycated haemoglobin (HbA1c) in early pregnancy is routine in New Zealand to identify women with diabetes and prediabetes. However, the benefit of early intervention in women with prediabetes is inconclusive. Our aim was to test the feasibility of a two-arm parallel randomised controlled trial of standard care versus early intervention in pregnancies complicated by prediabetes.SettingTwo tertiary referral centres in New Zealand.ParticipantsWomen <14 weeks’ gestation and HbA1c ≥5.9%–6.4% (41–46 mmol/mol) measured at booking, without pre-existing diabetes.InterventionsRandomisation was done by remote web-based allocation into one of two groups. Women in the early intervention group attended an antenatal diabetes clinic, commenced daily home blood glucose monitoring, and medication was prescribed if lifestyle measures failed to maintain target blood glucose levels. Controls received lifestyle education, continued standard care with their midwife and/or obstetrician, and were asked to perform a 75 g oral glucose tolerance test at 24 weeks’ gestation with a referral to clinic if this test was positive. Both groups received lifestyle questionnaires at recruitment and in late pregnancy.Outcome measuresRecruitment rate, adherence to protocol and validation of potential primary outcomes.ResultsRecruitment rates were lower than expected, especially in Māori and Pacific women. Non-adherence to allocated treatment protocol was significant, 42% (95% CI 24% to 61%) in the early intervention group and 30% (95% CI 16% to 51%) in controls. Caesarean section and pre-eclampsia were signalled as potential primary outcomes, due to both the high observed incidence in the control group and ease of measurement.ConclusionsFor a future definitive trial, extending the gestation of eligibility and stepped-wedge cluster randomisation may overcome the identified feasibility issues. Consistent with published observational data, pre-eclampsia and emergency caesarean section could be included as primary outcome measures, both of which have a significant impact on maternal and neonatal morbidity and healthcare costs.Trial registration numberACTRN12615000904572; Pre-results.
Risk of pyogenic liver abscess and endoscopic sphincterotomy: a population-based cohort study
Authors: Peng Yen-Chun , Lin Cheng-Li , Sung Fung-Chang 
Published: March 2018

ObjectivesTo evaluate the risk of pyogenic liver abscess (PLA) in patients receiving endoscopic sphincterotomy (ES).SettingA population-based cohort study using data from Taiwans’ National Health Insurance Research Database was conducted. Patients aged 20 or older who had undergone an ES were considered as the ES cohort. The dates for the first hospitalisation of the patients receiving ES were defined as the index dates.ParticipantsPatients in the ES and non-ES cohorts were selected by 1:1 matching ratio based on a propensity score. A total of 8174 sex-matched, age-matched and index year-matched (1:1) pairs of patients receiving ES and 8174 patients without ES served as controls. Cox proportional hazards regression was employed to calculate the HRs and 95% CIs for the association between PLA and ES.ResultsThe overall incidence of PLA was significantly higher in the ES cohort than in the non-ES cohort (4.20 vs 0.94, respectively, per 1000 person-year) with the adjusted HR (aHR) 4.50 (95% CI 3.38 to 6.58) A stratified analysis during the follow-up years revealed that when the ES cohort was compared with the non-ES cohort, they displayed a higher risk of PLA during the first follow-up year (aHR 4.35, 95% CI 2.26 to 8.39) which continued significantly over the next 4–5 years of follow-up.ConclusionsPatients receiving ES are associated with having a higher risk of PLA.
Factors affecting decisions to extend access to primary care: results of a qualitative evaluation of general practitioners’ views
Authors: Fowler Davis Sally , Piercy Hilary , Pearson Sarah , Thomas Ben , Kelly Shona 
Published: March 2018

ObjectivesTo report general practitioners’ (GPs’) views and experiences of an Enhanced Primary Care programme (EPCP) funded as part of the Prime Minister’s Challenge Fund (second wave) for England which aimed to extend patient access to primary care.SettingPrimary care in Sheffield, England.ParticipantsSemi-structured interviews with a purposive sample of GPs working in 24 practices across the city.ResultsFour core themes were derived: GPs’ receptivity to the aims of the EPCP, their capacity to support integrated care teams, their capacity to manage urgent care and the value of some new community-based schemes to enhance locality-based primary care. GPs were aware of the policy initiatives associated with out-of-hours access that aimed to reduce emergency department and hospital admissions. Due to limited capacity to respond to the programme, they selected elements that directly related to local patient demand and did not increase their own workload.ConclusionsThe variation in practice engagement and capacity to manage changes in primary care services warrants a subtle and specialist approach to programme planning. The study makes the case for enhanced planning and organisational development with GPs as stakeholders within individual practices and groups. This would ensure that policy implementation is effective and sustained at local level. A failure to localise implementation may be associated with increased workloading in primary care without the sustained benefits to patients and the public. To enable GPs to become involved in systems transformation, further research is needed to identify the best methods to engage GPs in programme planning and evaluation.
Diagnostic study on an immunochromatographic rapid test for schistosomiasis: comparison between use on serum and on blood spot from fingerprick
Authors: Buonfrate Dora , Rodari Paola , Brunelli Daniele , Degani Monica , Ragusa Andrea , Tais Stefano , Todeschini Martina , Bisoffi Zeno 
Published: March 2018

BackgroundAn immunochromatographic rapid test (ICT; Schistosoma ICT IgG-IgM, LDBIO Diagnostics) demonstrated high sensitivity (96%) in the diagnosis ofSchistosoma mansoniandS. haematobium. To date, the test has been validated for use on serum only, but in the absence of lab equipment, blood drop from fingerprick could be a useful option. This method is acquiring more interest because of the high flow of migrants rapidly moving across Italy and other European countries.ObjectiveThe aim of this prospective study was to evaluate the use of ICT on whole blood obtained from fingerprick.SettingCentre for Tropical Diseases (CTD), Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy.ParticipantsThe inclusion criteria were African migrants aged ≥18 years with epidemiological risk of infection. The exclusion criteria were refusal to participate in the study and impossibility of execution of one of the two study methods, for any reason. Seventy of the 72 eligible patients completed the study, 79% of whom were male.InterventionsThe ICT was performed twice for each included patient: one on blood drop (by the research nurses, in the ward) and one on serum (by staff of CTD lab). The primary outcome was the concordance between the two methods, assessed by Cohen’s kappa.ResultsCohen’s kappa was 0.45 (95% CI 27.0 to 63.6), indicating moderate agreement between the ICT on serum and the ICT on blood drop. Assuming the results on serum as reference standard for diagnosis, the sensitivity and specificity of ICT on blood drop were 55% (95% CI 40 to 69) and 93% (95% CI 79 to 98), respectively.ConclusionsThe agreement between the two diagnostic methods is too low to support the alternative one. Implementation of the kit for using blood drop instead of the serum and/or further studies aimed to identify easy-to-use tests for schistosomiasis feasible outside referral centres for tropical diseases are needed.
Management of haemothoraces in blunt thoracic trauma: study protocol for a randomised controlled trial
Authors: Carver David A , Bressan Alexsander K , Schieman Colin , Grondin Sean C , Kirkpatrick Andrew W , Lall Rohan , McBeth Paul B , Dunham Michael B , Ball Chad G 
Published: March 2018

IntroductionHaemothorax following blunt thoracic trauma is a common source of morbidity and mortality. The optimal management of moderate to large haemothoraces has yet to be defined. Observational data have suggested that expectant management may be an appropriate strategy in stable patients. This study aims to compare the outcomes of patients with haemothoraces following blunt thoracic trauma treated with either chest drainage or expectant management.Methods and analysisThis is a single-centre, dual-arm randomised controlled trial. Patients presenting with a moderate to large sized haemothorax following blunt thoracic trauma will be assessed for eligibility. Eligible patients will then undergo an informed consent process followed by randomisation to either (1) chest drainage (tube thoracostomy) or (2) expectant management. These groups will be compared for the rate of additional thoracic interventions, major thoracic complications, length of stay and mortality.Ethics and disseminationThis study has been approved by the institution’s research ethics board and registered withClinicalTrials.gov.All eligible participants will provide informed consent prior to randomisation. The results of this study may provide guidance in an area where there remains significant variation between clinicians. The results of this study will be published in peer-reviewed journals and presented at national and international conferences.Trial registration numberNCT03050502.