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https://www.readbyqxmd.com/read/28328803/incident-acute-pseudogout-and-prior-bisphosphonate-use-matched-case-control-study-in-the-uk-clinical-practice-research-datalink
#1
Edward Roddy, Sara Muller, Zoe Paskins, Samantha L Hider, Milisa Blagojevic-Bucknall, Christian D Mallen
Oral bisphosphonates are the most commonly used drugs to treat postmenopausal osteoporosis. Acute pseudogout is anecdotally reported to occur following bisphosphonate initiation but empirical data are lacking. We investigated whether treatment with oral bisphosphonates is a risk factor for incident acute pseudogout.A matched case-control study was undertaken using data from the UK-Clinical Practice Research Datalink. Adults who consulted for incident acute pseudogout between 1987 and 2012 were each matched for gender, age at pseudogout diagnosis, and general practice to up to 4 control subjects without pseudogout...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28326633/bias-from-depletion-of-susceptibles-the-example-of-hormone-replacement-therapy-and-the-risk-of-venous-thromboembolism
#2
Christel Renoux, Sophie Dell'Aniello, Benjamin Brenner, Samy Suissa
PURPOSE: The data on the association between hormone replacement therapy and the increased risk of venous thromboembolism (VTE) in postmenopausal women are conflicting. The observed differences between oral estrogen and oral estrogen-progestogen combination formulations may be the result of bias from depletion of susceptibles. METHODS: We used United Kingdom's Clinical Practice Research Datalink to identify the cohort of all women aged 50 to 79 during 1987-2008, with all incident cases of VTE occurring during the study period identified...
March 22, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28326589/risk-of-myocardial-infarction-in-patients-with-atrial-fibrillation-using-vitamin-k-antagonists-aspirin-or-direct-acting-oral-anticoagulants
#3
Leo M Stolk, Frank de Vries, Chiel Ebbelaar, Anthonius de Boer, Tom Schalekamp, Patrick Souverein, Arina Ten Cate-Hoek, Andrea M Burden
AIM: Direct-acting oral anticoagulants (DOACs) have become available for the prevention of stroke in patients with atrial fibrillation (AF). Conflicting results have been published on the risk of acute myocardial infarction (AMI) with the use of DOACs in comparison with vitamin K antagonists (VKAs). The objective of the present study was to evaluate the risk of AMI in patients with AF who are exposed to either VKAs, DOACs or low-dose (< 325 mg) aspirin. METHODS: We conducted a population-based cohort study using data from the Clinical Practice Research Datalink (2008-2014)...
March 22, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28319159/drug-therapy-for-alcohol-dependence-in-primary-care-in-the-uk-a-clinical-practice-research-datalink-study
#4
Andrew Thompson, Darren M Ashcroft, Lynn Owens, Tjeerd P van Staa, Munir Pirmohamed
AIM: To evaluate drug therapy for alcohol dependence in the 12 months after first diagnosis in UK primary care. DESIGN: Open cohort study. SETTING: General practices contributing data to the UK Clinical Practice Research Database. PARTICIPANTS: 39,980 people with an incident diagnosis of alcohol dependence aged 16 years or older between 1 January 1990 and 31 December 2013. MAIN OUTCOME MEASURE: Use of pharmacotherapy (acamprosate, disulfiram, naltrexone, baclofen and topiramate) to promote abstinence from alcohol or reduce drinking to safe levels in the first 12 months after a recorded diagnosis of alcohol dependence...
2017: PloS One
https://www.readbyqxmd.com/read/28304375/external-validation-of-a-copd-prediction-model-using-population-based-primary-care-data-a-nested-case-control-study
#5
Bright I Nwaru, Colin R Simpson, Aziz Sheikh, Daniel Kotz
Emerging models for predicting risk of chronic obstructive pulmonary disease (COPD) require external validation in order to assess their clinical value. We validated a previous model for predicting new onset COPD in a different database. We randomly drew 38,597 case-control pairs (total N = 77,194) of individuals aged ≥35 years and matched for sex, age, and general practice from the United Kingdom Clinical Practice Research Datalink database. We assessed accuracy of the model to discriminate between COPD cases and non-cases by calculating area under the receiver operator characteristic (ROCAUC) for the prediction scores...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28295443/risk-of-incident-antidepressant-treated-depression-associated-with-use-of-5-%C3%AE-reductase-inhibitors-compared-with-use-of-%C3%AE-blockers-in-men-with-benign-prostatic-hyperplasia-a-population-based-study-using-the-clinical-practice-research-datalink
#6
Katrina Wilcox Hagberg, Hozefa A Divan, J Curtis Nickel, Susan S Jick
STUDY OBJECTIVE: To estimate the risk of incident antidepressant-treated depression in men with benign prostatic hyperplasia (BPH) who were prescribed 5-α-reductase inhibitors (5ARIs) compared with those prescribed an active comparator, α-blockers (ABs). DESIGN: Retrospective cohort study with a nested case-control analysis. DATA SOURCE: United Kingdom's Clinical Practice Research Datalink. PATIENTS: A total of 77,732 men with a diagnosis of BPH who received a prescription for a 5ARI only and/or ABs between January 1, 1992, and December 31, 2013...
March 12, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28279992/association-of-comorbidity-and-health-service-usage-among-patients-with-dementia-in-the-uk-a-population-based-study
#7
Jorge Browne, Duncan A Edwards, Kirsty M Rhodes, D James Brimicombe, Rupert A Payne
BACKGROUND: The majority of people with dementia have other long-term diseases, the presence of which may affect the progression and management of dementia. This study aimed to identify subgroups with higher healthcare needs, by analysing how primary care consultations, number of prescriptions and hospital admissions by people with dementia varies with having additional long-term diseases (comorbidity). METHODS: A retrospective cohort study based on health data from the Clinical Practice Research Datalink (CPRD) was conducted...
March 9, 2017: BMJ Open
https://www.readbyqxmd.com/read/28279964/serum-creatinine-elevation-after-renin-angiotensin-system-blockade-and-long-term-cardiorenal-risks-cohort-study
#8
Morten Schmidt, Kathryn E Mansfield, Krishnan Bhaskaran, Dorothea Nitsch, Henrik Toft Sørensen, Liam Smeeth, Laurie A Tomlinson
Objective To examine long term cardiorenal outcomes associated with increased concentrations of creatinine after the start of angiotensin converting enzyme inhibitor/angiotensin receptor blocker treatment.Design Population based cohort study using electronic health records from the Clinical Practice Research Datalink and Hospital Episode Statistics.Setting UK primary care, 1997-2014.Participants Patients starting treatment with angiotensin converting enzyme inhibitors or angiotensin receptor blockers (n=122 363)...
March 9, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28277876/the-use-of-adjunctive-antipsychotics-to-treat-depression-in-uk-primary-care
#9
F X Lamy, D Saragoussi, M E Johnson, A Guiraud-Diawara, K T Jørgensen, J Y Loze, A Maguire
OBJECTIVE: Adjunctive antipsychotic therapy can be prescribed to patients with depression who have inadequate response to antidepressants. This study aimed to describe the use of adjunctive antipsychotics over a time period that includes the authorization in 2010 of prolonged-release quetiapine as the first adjunct antipsychotic to be used in major depressive disorder in the UK. RESEARCH DESIGN AND METHODS: Adults with an episode of depression between January 1, 2005 and July 31, 2013 were identified from antidepressant prescriptions and depression diagnoses in the UK Clinical Practice Research Datalink...
March 15, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28273171/body-mass-index-and-risk-of-advanced-chronic-kidney-disease-prospective-analyses-from-a-primary-care-cohort-of-1-4-million-adults-in-england
#10
William G Herrington, Margaret Smith, Clare Bankhead, Kunihiro Matsushita, Sarah Stevens, Tim Holt, F D Richard Hobbs, Josef Coresh, Mark Woodward
BACKGROUND: It is uncertain whether being overweight, but not obese, is associated with advanced chronic kidney disease (CKD) and how the size and shape of associations between body-mass index (BMI) and advanced CKD differs among different types of people. METHODS: We used Clinical Practice Research Datalink records (2000-2014) with linkage to English secondary care and mortality data to identify a prospective cohort with at least one BMI measure. Cox models adjusted for age, sex, smoking and social deprivation and subgroup analyses by diabetes, hypertension and prior cardiovascular disease assessed relationships between BMI and CKD stages 4-5 and end-stage renal disease (ESRD)...
2017: PloS One
https://www.readbyqxmd.com/read/28246144/population-trends-in-the-10-year-incidence-and-prevalence-of-diabetic-retinopathy-in-the-uk-a-cohort-study-in-the-clinical-practice-research-datalink-2004-2014
#11
Rohini Mathur, Krishnan Bhaskaran, Emma Edwards, Helen Lee, Nishi Chaturvedi, Liam Smeeth, Ian Douglas
OBJECTIVES: To describe trends in the incidence and prevalence of diabetic retinopathy (DR) in the UK by diabetes type, age, sex, ethnicity, deprivation, region and calendar year. DESIGN: Cohort study using the Clinical Practice Research Datalink (CPRD). SETTING: UK primary care. PARTICIPANTS: 7.7 million patients ≥12 contributing to the CPRD from 2004 to 2014. PRIMARY AND SECONDARY OUTCOME MEASURES: Age-standardised prevalence and incidence of diabetes, DR and severe DR (requiring photocoagulation) by calendar year and population subgroup...
February 28, 2017: BMJ Open
https://www.readbyqxmd.com/read/28243454/presentation-of-sle-in-uk-primary-care-using-the-clinical-practice-research-datalink
#12
Alison L Nightingale, Julie E Davidson, Charles T Molta, Hong J Kan, Neil J McHugh
OBJECTIVES: To describe the presenting symptoms of SLE in primary care using the Clinical Practice Research Database (CPRD) and to calculate the time from symptom presentation to SLE diagnosis. METHODS: Incident cases of SLE were identified from the CPRD between 2000 and 2012. Presenting symptoms were identified from the medical records of cases in the 5 years before diagnosis and grouped using the British Isles Lupus Activity Group (BILAG) symptom domains. The time from the accumulation of one, two and three BILAG domains to SLE diagnosis was investigated, stratified by age at diagnosis (<30, 30-49 and ≥50 years)...
2017: Lupus Science & Medicine
https://www.readbyqxmd.com/read/28237628/trends-in-breast-cancer-incidence-among-women-with-type-2-diabetes-in-british-general-practice
#13
Heleen K Bronsveld, Paul J H L Peeters, Mark C H de Groot, Anthonius de Boer, Marjanka K Schmidt, Marie L De Bruin
AIMS: To quantify breast cancer incidence in women with type-2 diabetes and assess age-standardized trends in invasive breast cancer incidence over time and by age groups. METHODS: A population-based cohort study was conducted using the British general practice database (Clinical Practice Research Datalink) using data from 1989 to 2012. All adult women prescribed anti-hyperglycemic medication were selected and matched (1:1) on age and clinical practice to a reference cohort without diabetes...
February 22, 2017: Primary Care Diabetes
https://www.readbyqxmd.com/read/28231289/rehr-an-r-package-for-manipulating-and-analysing-electronic-health-record-data
#14
David A Springate, Rosa Parisi, Ivan Olier, David Reeves, Evangelos Kontopantelis
Research with structured Electronic Health Records (EHRs) is expanding as data becomes more accessible; analytic methods advance; and the scientific validity of such studies is increasingly accepted. However, data science methodology to enable the rapid searching/extraction, cleaning and analysis of these large, often complex, datasets is less well developed. In addition, commonly used software is inadequate, resulting in bottlenecks in research workflows and in obstacles to increased transparency and reproducibility of the research...
2017: PloS One
https://www.readbyqxmd.com/read/28228662/risk-of-gynecomastia-and-breast-cancer-associated-with-the-use-of-5-alpha-reductase-inhibitors-for-benign-prostatic-hyperplasia
#15
Katrina Wilcox Hagberg, Hozefa A Divan, Shona C Fang, J Curtis Nickel, Susan S Jick
BACKGROUND: Clinical trial results suggest that 5-alpha reductase inhibitors (5ARIs) for the treatment of benign prostatic hyperplasia (BPH) may increase the risk of gynecomastia and male breast cancer, but epidemiological studies have been limited. PATIENTS AND METHODS: We conducted a cohort study with nested case-control analyses using the UK Clinical Practice Research Datalink. We identified men diagnosed with BPH who were free from Klinefelter syndrome, prostate, genital or urinary cancer, prostatectomy or orchiectomy, or evidence of gynecomastia or breast cancer...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/28218819/healthcare-resource-utilization-and-related-financial-costs-associated-with-glucose-lowering-with-either-exenatide-or-basal-insulin-a-retrospective-cohort-study
#16
Sarah E Holden, Christopher Ll Morgan, Qing Qiao, Sara Jenkins-Jones, Ellen R Berni, Craig J Currie
AIMS: Type 2 diabetes is a major health problem placing increasing demands on healthcare systems. Our objective was to estimate healthcare resource use and related financial costs following treatment with exenatide-based regimens prescribed as once-weekly (EQW) or twice-daily (EBID) formulations, compared with regimens based on basal insulin (BI). MATERIALS AND METHODS: This retrospective cohort study used data from the UK Clinical Practice Research Datalink (CPRD) linked to Hospital Episode Statistics (HES)...
February 20, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28209371/the-effect-of-patient-age-at-intervention-on-risk-of-implant-revision-after-total-replacement-of-the-hip-or-knee-a-population-based-cohort-study
#17
Lee E Bayliss, David Culliford, A Paul Monk, Sion Glyn-Jones, Daniel Prieto-Alhambra, Andrew Judge, Cyrus Cooper, Andrew J Carr, Nigel K Arden, David J Beard, Andrew J Price
BACKGROUND: Total joint replacements for end-stage osteoarthritis of the hip and knee are cost-effective and demonstrate significant clinical improvement. However, robust population based lifetime-risk data for implant revision are not available to aid patient decision making, which is a particular problem in young patient groups deciding on best-timing for surgery. METHODS: We did implant survival analysis on all patients within the Clinical Practice Research Datalink who had undergone total hip replacement or total knee replacement...
February 13, 2017: Lancet
https://www.readbyqxmd.com/read/28205318/risk-of-major-bleeding-and-stroke-associated-with-the-use-of-vkas-noacs-and-aspirin-in-patients-with-atrial-fibrillation-a-cohort-study
#18
Emilie Gieling, Hendrika A van den Ham, Hein van Onzenoort, Jacqueline Bos, Cornelis Kramers, Anthonius de Boer, Frank de Vries, Andrea M Burden
INTRODUCTION: Non-vitamin K antagonist oral anticoagulants (NOACs) are now available for the prevention of stroke in patients with atrial fibrillation (AF) as an alternative to vitamin K antagonists (VKA) and aspirin. The comparative effectiveness and safety in daily practice of these different drug classes is still unclear. The objective of this study was to evaluate the risk of major bleeding and stroke in AF patients using NOACs, VKAs or aspirin. METHODS: A retrospective cohort study was conducted among AF patients using the UK Clinical Practice Research Datalink (March 2008-October 2014)...
February 16, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28202399/the-epidemiology-of-stevens-johnson-syndrome-and-toxic-epidermal-necrolysis-in-the-uk
#19
Noel Frey, Janine Jossi, Michael Bodmer, Andreas Bircher, Susan S Jick, Christoph R Meier, Julia Spoendlin
Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are rare but life-threatening mucocutaneous diseases. SJS/TEN mostly manifest as a reaction to new drug use, but little is known about their incidence and epidemiology. We conducted a large observational study on the epidemiology of SJS/TEN using data from the UK-based Clinical Practice Research Datalink. Among 551 validated SJS/TEN cases, we calculated an incidence rate of 5.76 SJS/TEN cases/million person-years between 1995 and 2013, which was consistent throughout the study period, and was highest in patients aged 1-10 years and ≥80 years...
February 12, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28199787/prolactin-elevating-antipsychotics-and-the-risk-of-endometrial-cancer
#20
Adi J Klil-Drori, Hui Yin, Haim A Abenhaim, Guillaume Galbaud du Fort, Laurent Azoulay
BACKGROUND: The use of antipsychotics may increase the risk of endometrial cancer through elevation of prolactin levels. We investigated the association between antipsychotics that are known to cause prolactin elevation and the risk of endometrial cancer. METHODS: In data from the United Kingdom Clinical Practice Research Datalink, all women who were newly treated with antipsychotics from 1990-2013 were identified and followed until 2014. Within this cohort of antipsychotic users, a nested case-control analysis was conducted...
February 14, 2017: Journal of Clinical Psychiatry
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