Abstract:
PURPOSE:Days supply (prescription duration) values are commonly used to estimate drug exposure and quantify adherence to therapy, yet accuracy is not routinely assessed, and potential inaccurate reporting has been previously identified. We examined the impact of cleaning days supply values on the measurement of adherence to oral bisphosphonates. METHODS:We identified new users of oral bisphosphonates among Ontario seniors (April 2001-March 2011). Days supply values were examined by dose, and we identified misclassification by comparing observed values to dose-specific expected values. Days supply values not matching expected values were cleaned using dose-specific algorithms. One-year adherence to therapy was defined using measures of compliance (mean proportion of days covered [PDC], and categorized into high [PDC ≥ 80%], medium [50% < PDC < 80%], low [PDC ≤ 50%]) and persistence (30-day permissible gap). Estimates were compared using the observed and cleaned days supply values, stratified by site of patient residence (community or long-term care [LTC]). RESULTS:We identified 337 729 (5% LTC) eligible new users. Among LTC patients, adherence estimates increased significantly following data cleaning: mean PDC (59 to 83%), proportion with high compliance (47 to 76%), and proportion persisting with therapy (62 to 78%). Modest increases were identified among community-dwelling patients following data cleaning (mean PDC, 71 to 74%; high compliance, 54 to 58%; and persistence, 56 to 61%). CONCLUSIONS:Data cleaning to correct for exposure misclassification can influence estimates of adherence with oral bisphosphonate therapy, particularly in LTC. Results highlight the importance of developing data cleaning strategies to correct for exposure misclassification and improve transparency in pharmacoepidemiologic studies.
journal_name
Pharmacoepidemiol Drug Safjournal_title
Pharmacoepidemiology and drug safetyauthors
Burden AM,Paterson JM,Gruneir A,Cadarette SMdoi
10.1002/pds.3718subject
Has Abstractpub_date
2015-01-01 00:00:00pages
67-74issue
1eissn
1053-8569issn
1099-1557journal_volume
24pub_type
杂志文章abstract:PURPOSE:To assess the effect of moderate alcohol consumption on Adverse Drug Reactions (ADRs) among older adults admitted to acute care hospitals and to examine the consistency of this effect across gender and age groups. METHODS:We used the GIFA (Italian Group of Pharmacoepidemiology in the Elderly) database, which i...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.721
更新日期:2002-07-01 00:00:00
abstract:PURPOSE:This study aimed to examine the effect of antidepressant use on persistence with newly initiated oral antidiabetic medicines in older people. METHODS:A retrospective study of administrative claims data from the Australian Government Department of Veterans' Affairs, from 1 July 2000 to 30 June 2008 of new users...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3424
更新日期:2013-06-01 00:00:00
abstract:PURPOSE:In this study, we analyzed the consumption trends of antihypertensives in Morocco during the 1991-2010 period and the impacts after the institution of Mandatory Health Insurance and the marketing of generic drugs. METHODS:We used sales data from the Moroccan subsidiary of IMS Health "Intercontinental Marketing...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3288
更新日期:2012-10-01 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
abstract:PURPOSE:To assess the prevalence of adverse drug reactions (ADRs) occurring in patients with Alzheimer's disease (AD) or other dementia in France. METHODS:A cross-sectional multicentre study was conducted by the French network of the 31 regional pharmacovigilance centres on a given day. The subjects were selected by r...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1002/pds.3471
更新日期:2013-09-01 00:00:00
abstract:PURPOSE:The strong male predominance of gastro-oesophageal cancer suggests that sex hormones play an important role. 5α-Reductase (5AR) inhibitors have antiandrogen effects and have been shown to decrease cancer cell proliferation and metastasis. We conducted the first epidemiologic investigation into the association b...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4909
更新日期:2020-01-01 00:00:00
abstract:PURPOSE:The abuse and nonmedical use of prescription opioids and its subsequent consequences are an important public health concern. This phenomenon has paralleled the increase in the therapeutic use of opioids for pain management. There is thus a need to measure prescription opioid abuse to understand trends over time...
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
abstract:PURPOSE:Because preapproval clinical trials typically exclude pregnant women, the evidence on drug safety during pregnancy required to inform drug labeling must come from postapproval controlled observational studies. Common designs have included pregnancy registries and case-control studies. Recently, pregnancy cohort...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,评审
doi:10.1002/pds.4789
更新日期:2019-07-01 00:00:00
abstract:PURPOSE:We aimed to describe time-trends in the use of NOACs among a group of ambulatory patients with nonvalvular atrial fibrillation (NVAF) in Colombia and to describe treatment patterns and user characteristics. METHODS:Using the Audifarma S.A administrative healthcare database in Colombia, we identified 10 528 pat...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.5124
更新日期:2020-10-15 00:00:00
abstract:PURPOSE:To describe published validation studies of administrative health care claims data in the Asia-Pacific region. METHODS:A comprehensive literature search was conducted in PubMed for English language articles published through 31-Oct-2017 in humans from 10 Asian-Pacific countries or regions (Japan, Australia, Ne...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,评审
doi:10.1002/pds.4616
更新日期:2019-02-01 00:00:00
abstract:PURPOSE:Medicaid programs are concerned about inappropriate, potentially hazardous, and costly off-label use of second-generation antipsychotics (SGAs). Several states are exploring policies aimed at managing low-dose quetiapine, commonly prescribed for off-label conditions. This study aimed to characterize longitudina...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3538
更新日期:2014-01-01 00:00:00
abstract::A series of case reports to the varicella vaccine Pregnancy Registry described inadvertent administrations during pregnancy of this live virus product instead of the intended Varicella zoster immune globulin. Cases continued to accrue despite an early publication about the pattern. The persistent problem warrants spec...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.749
更新日期:2002-12-01 00:00:00
abstract:OBJECTIVES:This study quantifies the incidence of liver enzyme abnormalities in the general population of central Massachusetts. METHODS:Computerized data files from a health maintenance organization were used to ascertain potential subjects during the study period of 1 July 1992-30 June 1993. Medical records and labo...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/(SICI)1099-1557(199907)8:4<275::AID-PDS427
更新日期:1999-07-01 00:00:00
abstract:PURPOSE:To assess the reason for the relative high risk of local complications for women following cardiac catheterization by evaluating the associations between gender, sheath size, and local adverse outcomes following cardiac catheterization. METHODS:The data used in this study were obtained from a portion of the Am...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,多中心研究
doi:10.1002/pds.1307
更新日期:2007-02-01 00:00:00
abstract:PURPOSE:To determine healthcare claim patterns associated using nonsteroidal anti-inflammatory drugs (NSAIDs) for rheumatoid arthritis (RA). METHODS:The CADEUS study randomly identified NSAID users within the French health insurance database. One-year claims data were extracted, and NSAID indication was obtained from ...
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:BACKGROUND AND AIMS:Non-adherence is considered a major barrier to better outcomes of diabetes care. A relationship has been established between polypharmacy and patients' adherence. This study aims to investigate the occurrence of polypharmacy and non-adherence in general practice, their mutual relationship and the as...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,随机对照试验
doi:10.1002/pds.1810
更新日期:2009-11-01 00:00:00
abstract:PURPOSE:PCORnet, the National Patient-Centered Clinical Research Network, represents an innovative system for the conduct of observational and pragmatic studies. We describe the identification and validation of a retrospective cohort of patients with type 2 diabetes (T2DM) from four PCORnet sites. METHODS:We adapted e...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4718
更新日期:2019-05-01 00:00:00
abstract:PURPOSE:We developed a computerized system for signal detection in spontaneous reporting system (SRS) of Shanghai. Data acquisition, data mining could be carried out automatically and the process of data preprocessing and cleaning could be facilitated. This system was expected to detect signals from SRS after drug lice...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1695
更新日期:2009-02-01 00:00:00
abstract:PURPOSE:Fear of discontinuing concomitant anti-epileptic drugs (AEDs) may lead to potentially unnecessary and perhaps unsafe polypharmacy. The effect of withdrawing concomitant AEDs on epilepsy control was therefore studied in long-term users of levetiracetam. METHODS:The EULEV cohort followed patients initiating leve...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3338
更新日期:2012-11-01 00:00:00
abstract:PURPOSE:To describe the characteristics of new users of cilostazol in Europe with the aim to support the evaluation of its benefit/risk as used in regular clinical practice before the implementation of labeling changes recommended by the European Medicines Agency. METHODS:New users of cilostazol were identified in pop...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4167
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:To learn the evolution of antidepressant and lithium use in Castilla y León (Central Spain) and its relationship with suicide rates. METHODS:A search in the ECOM (Especialidades Consumo de Medicamentos) database of the Spanish Ministry of Health for antidepressants and lithium was carried out for the period ...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1944
更新日期:2010-09-01 00:00:00
abstract:PURPOSE:The purpose of this study is to quantify the impact of the different outcomes and definitions of suicidality on the association between antiepileptic drugs (AEDs) and suicidality. METHODS:Retrospective cohort studies of selected AEDs (carbamazepine, gabapentin, lamotrigine, phenytoin, pregabalin, topiramate an...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3928
更新日期:2016-03-01 00:00:00
abstract:PURPOSE:To examine the effects of analgesics on bone mineral density (BMD), which have not been examined in a longitudinal study with multiple measurements. METHODS:We investigated changes in BMD associated with new use of analgesics in a prospective longitudinal cohort of mid-life women. BMD and medication use were m...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4362
更新日期:2018-02-01 00:00:00
abstract::The General Practice Research Database (GPRD) is the world's largest computerized database of anonymized longitudinal patient records from general practice and is a unique public health research tool. Several issues have threatened the viability of the database in recent years; in April 1999 responsibility for its man...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.608
更新日期:2001-08-01 00:00:00
abstract:PURPOSE:To investigate the occurrence of adverse drug reactions (ADRs) and associated risk factors in a pediatric hospital in northeast Brazil, from August to December 2001. SUBJECTS/SETTING:Two hundred seventy two patients hospitalized for more than 24 hours. METHODS:Prospective cohort study. Daily visits were perfo...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1187
更新日期:2006-09-01 00:00:00
abstract:PURPOSE:To evaluate the extent, characteristics and determinants of adverse drug reaction (ADR)-related hospitalisations on a population-based level in 2003. METHODS:We performed a cohort study in the Integrated Primary Care Information (IPCI) database, a general practitioners (GPs) research database with longitudinal...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1565
更新日期:2008-04-01 00:00:00
abstract:PURPOSE:To conduct a synthesis of the literature on methods to evaluate the impacts of FDA regulatory actions and identify best practices for future evaluations. METHODS:We searched MEDLINE for manuscripts published between January 1948 and August 2011 that included terms related to FDA, regulatory actions, and empiri...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,评审
doi:10.1002/pds.3480
更新日期:2013-09-01 00:00:00
abstract:PURPOSE:To display a ranked presentation of the data given in the Drug Analysis Prints (DAPs) provided by the MHRA/CSM so that the monitoring clinician may be readily alerted to the most important findings. The practolol DAP is taken as an example of the presentation. METHOD:The data for the ranked system organ classe...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1144
更新日期:2005-10-01 00:00:00
abstract::In 1978, a systematic collection of adverse drug reactions (ADRs) was set up in a hospital including several departments and continued for more than 18 years. Quarterly meetings were organized gathering clinicians, students, nurses and pharmacologists to discuss the clinical cases collected each quarter. Approximately...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/(sici)1099-1557(199808)7:1+
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:Granular clinical and laboratory data available in electronic health record (EHR) databases provide researchers the opportunity to conduct investigations that would not be possible in insurance claims databases; however, for pharmacoepidemiology studies, accurate classification of medication exposure is crit...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4234
更新日期:2017-08-01 00:00:00