Abstract:
OBJECTIVE:Outcome misclassification may occur in observational studies using administrative databases. We evaluated a two-step multiple imputation approach based on complementary internal validation data obtained from two subsamples of study participants to reduce bias in hazard ratio (HR) estimates in Cox regressions. METHODS:We illustrated this approach using data from a surveyed sample of 6247 individuals in a study of statin-diabetes association in Quebec. We corrected diabetes status and onset assessed from health administrative data against self-reported diabetes and/or elevated fasting blood glucose (FBG) assessed in subsamples. The association between statin use and new onset diabetes was evaluated using administrative data and the corrected data. By simulation, we assessed the performance of this method varying the true HR, sensitivity, specificity, and the size of validation subsamples. RESULTS:The adjusted HR of new onset diabetes among statin users versus non-users was 1.61 (95% confidence interval: 1.09-2.38) using administrative data only, 1.49 (0.95-2.34) when diabetes status and onset were corrected based on self-report and undiagnosed diabetes (FBG ≥ 7 mmol/L), and 1.36 (0.92-2.01) when corrected for self-report and undiagnosed diabetes/impaired FBG (≥ 6 mmol/L). In simulations, the multiple imputation approach yielded less biased HR estimates and appropriate coverage for both non-differential and differential misclassification. Large variations in the corrected HR estimates were observed using validation subsamples with low participation proportion. The bias correction was sometimes outweighed by the uncertainty introduced by the unknown time of event occurrence. CONCLUSION:Multiple imputation is useful to correct for outcome misclassification in time-to-event analyses if complementary validation data are available from subsamples. Copyright © 2017 John Wiley & Sons, Ltd.
journal_name
Pharmacoepidemiol Drug Safjournal_title
Pharmacoepidemiology and drug safetyauthors
Ni J,Leong A,Dasgupta K,Rahme Edoi
10.1002/pds.4223subject
Has Abstractpub_date
2017-08-01 00:00:00pages
925-934issue
8eissn
1053-8569issn
1099-1557journal_volume
26pub_type
杂志文章abstract:PURPOSE:A recent regulatory warning and case reports have described the development of muscle complications with the use of 5-α reductase inhibitors (5ARIs). We wished to determine if there was a link between rhabdomyolysis and 5ARI usage. METHODS:We used a matched cohort design and linked administrative data from the...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4383
更新日期:2018-03-01 00:00:00
abstract:BACKGROUND:European Surveillance of Congenital Anomalies (EUROCAT) is a network of population-based congenital anomaly registries in Europe surveying more than 1 million births per year, or 25% of the births in the European Union. This paper describes the potential of the EUROCAT collaboration for pharmacoepidemiology ...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1265
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abstract:PURPOSE:During the past two decades, many novel immunosuppressive drugs have been approved for transplant recipients. Trends in the use of maintenance immunosuppressants after liver transplantation in Asia are unclear. Thus, we aimed to analyze the prescription trends in maintenance immunosuppressive drugs among liver ...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3964
更新日期:2016-06-01 00:00:00
abstract:PURPOSE:Little is known about opioid use after bariatric surgery among patients who did not use opioids chronically before surgery. Our purpose was to determine opioid use the year after bariatric surgery among patients who did not use opioids chronically pre-surgery and to identify pre-surgery characteristics associat...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3625
更新日期:2014-12-01 00:00:00
abstract:PURPOSE:Our aim was to describe and assess the medicinal products and doses used for euthanasia in a series of cases, identified within an epidemiological death certificate study in Belgium, where euthanasia was until recently legally forbidden and where guidelines for euthanasia are not available. METHODS:In a random...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.863
更新日期:2004-02-01 00:00:00
abstract::The article is devoted to the establishment and development of the National Pharmacovigilance system in Ukraine. A drug safety centre of Ukraine started to form a pharmacovigilance system in 1996. It has been operating on a regular basis since 2000 and now provides the regulatory services that include data collection ...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.886
更新日期:2004-03-01 00:00:00
abstract:PURPOSE:To study adult height in children that grew up with asthma before inhaled steroids became first-line therapy. METHODS:Data from the Swedish Medical Birth Register (self-reported asthma) and the Hospital Discharge Register (first hospitalization for asthma) were used, to compare adult height for asthmatic and n...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.580
更新日期:2001-03-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,随机对照试验
doi:10.1002/pds.3221
更新日期:2012-06-01 00:00:00
abstract:PURPOSE:To investigate a possible increased risk of esophageal obstruction among users of loratadine and pseudoephedrine (Claritin-D 24-Hour [C-D 24], the original, round, extended-release formulation) compared to two other tablet formulations of loratadine. METHODS:Pharmacy data of 12 managed care plans were screened...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.816
更新日期:2004-01-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,评审
doi:10.1002/pds.1496
更新日期:2007-12-01 00:00:00
abstract:PURPOSE:To develop and validate an algorithm to identify preterm infants in the absence of birth certificates within Medicaid data. METHODS:Medicaid fee-for-service claims data from Florida (FL) and Texas (TX) were linked to vital statistics data for infants who were continuously eligible during the first 3 months fol...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3264
更新日期:2012-06-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.5088
更新日期:2020-12-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.2232
更新日期:2012-09-01 00:00:00
abstract::Pharmaceutical manufacturers are faced with the challenge of when and how to conduct pharmacoeconomic (PE) evaluations to satisfy formulary decision-makers. To illustrate the usefulness of decision analysis for strategic planning in drug development, a model was created to compare the cost-benefit of three PE design o...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/(SICI)1099-1557(199711/12)6:6<399::AID-PDS
更新日期:1997-11-01 00:00:00
abstract:PURPOSE:Risk assessment for natural health products (NHPs) may not be evaluated similarly to therapeutic products by Health Canada in terms of notification of harms to consumers and health professionals. In this descriptive study, we evaluated risk communications (RCs) issued by Health Canada for NHPs and for therapeut...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.2137
更新日期:2011-10-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,多中心研究
doi:10.1002/pds.1558
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND:Studies demonstrate the potential for statins to prevent dementia and Alzheimer's disease (AD), but the evidence is inconclusive. OBJECTIVE:Conduct a meta-analysis to estimate any benefit of statins in preventing dementia and examine the potential effect of study design and confounding on the benefit of sta...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,meta分析
doi:10.1002/pds.3381
更新日期:2013-04-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3719
更新日期:2015-01-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,评审
doi:10.1002/pds.3711
更新日期:2014-12-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,评审
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更新日期:2013-11-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3877
更新日期:2016-04-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4897
更新日期:2019-11-01 00:00:00
abstract:PURPOSE:This study compared the effectiveness of rosuvastatin (RSV) to other statins prescribed in clinical practice in prevention of cardiovascular (CV) events. METHODS:This longitudinal inception cohort study, using Thomson Healthcare's MarketScan databases, included patients aged > or = 18 starting statin therapy d...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1843
更新日期:2009-12-01 00:00:00
abstract:PURPOSES:To describe the kind of the difficulties encountered when seeking research governance approval for a nationwide public health and genetic study-the Drug-Induced Arrhythmia Risk Evaluation study-in England. METHODS:Description of the processes followed when seeking research governance approval for the Drug-Ind...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,评审
doi:10.1002/pds.1116
更新日期:2005-06-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4906
更新日期:2020-01-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4325
更新日期:2017-12-01 00:00:00
abstract:PURPOSE:Many patients use complementary/alternative medicine (CAM) for their health problems especially where long-term treatment is required. Epilepsy is the most prevalent neurological disorder requiring long-term treatment and compliance. The purpose of the study was to establish the pattern of use of CAM in epilept...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.731
更新日期:2002-09-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 历史文章,杂志文章
doi:10.1002/pds.3649
更新日期:2014-12-01 00:00:00
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journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4585
更新日期:2018-09-01 00:00:00
abstract:PURPOSE:The role of administrative databases for research on drug safety during pregnancy can be limited by their inaccurate assessment of the timing of exposure, as the gestational age at birth is typically unavailable. Therefore, we sought to develop and validate algorithms to estimate the gestational age at birth us...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3284
更新日期:2013-01-01 00:00:00