Abstract:
PURPOSE:Ejection fraction (EF) is crucial information when studying the use and effectiveness of therapies in patients with heart failure (HF) and myocardial infarction (MI). We aimed to assess the validity of claims data-based definitions of systolic dysfunction (SD). METHODS:We identified 1072 patients with EF recorded for an HF/MI hospitalization in Medicare linked with pharmacy data and national HF/MI registries in 1999-2006. Thirteen claims-based definitions for SD were developed using a single or combination of ICD-9 diagnosis codes and cardiovascular medications use. We calculated sensitivity, specificity, and positive predictive values (PPVs) using recorded EFs as the gold standard. RESULTS:Using an EF cutoff of 45%, the definitions based on digoxin use and no atrial fibrillation or flutter had the highest PPVs (76% to 84%) and specificity (>97%) but low sensitivity (6%-14%). As we varied the EF cutoff between 50% and 25%, the specificity decreased by 3%, but the PPVs decreased by 52%. We observed potential differences in the PPVs by patients' characteristics. In a hypothetical study assessing implantable defibrillator effectiveness, using our definition to identify patients with SD would underestimate the effectiveness by 3% to 24%. In another hypothetical study comparing two classes of angiotensin system blockers where SD was considered confounding, our definition introduced ~43% misclassification bias. CONCLUSIONS:Claims-based definitions for SD had excellent specificity and good PPV but low sensitivity. The definitions with good PPV could be used for cohort identification or confounding adjustment by restriction and would result in relatively small misclassification bias albeit limited generalizability.
journal_name
Pharmacoepidemiol Drug Safjournal_title
Pharmacoepidemiology and drug safetyauthors
Li Q,Glynn RJ,Dreyer NA,Liu J,Mogun H,Setoguchi Sdoi
10.1002/pds.2146subject
Has Abstractpub_date
2011-07-01 00:00:00pages
700-8issue
7eissn
1053-8569issn
1099-1557journal_volume
20pub_type
杂志文章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:PURPOSE:We aim to derive an internationally applicable data set to improve prescription safety of psychiatric drugs. METHODS:We performed an in-depth analysis of the concordance of prescribing information of 10 key psychiatric drugs across four major drug markets with regard to indications, warnings and precautions, a...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3389
更新日期:2013-03-01 00:00:00
abstract::Purpose - The objective of this study was an evaluation of the sensitivity of findings of the relationship between oral corticosteroid use and the risk of fracture. We found in earlier work that the risk of fracture was significantly higher during oral corticosteroid treatment, with increases of 61% in hip and 160% in...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/1099-1557(200009/10)9:5<359::AID-PDS507>3.
更新日期:2000-09-01 00:00:00
abstract:PURPOSE:Our study addresses how the information in the labels differed between United States (US) and Japan, what factors were associated with the decision to place the boxed warning on the label, and the relation of both countries in terms of drug label policy. METHODS:We investigated adverse drug reactions (ADRs) in...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4111
更新日期:2017-02-01 00:00:00
abstract:PURPOSE:The aim of this study was to evaluate the effect of the length of the drug free period on incidence measurements as well as on cohort characteristics in users of antidepressants. METHODS:The study population consisted of patients aged 18 years or older who filled a prescription for an antidepressant drug in th...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1223
更新日期:2006-05-01 00:00:00
abstract:PURPOSE:There is an increasing number of children with in utero exposure to opioids. Knowledge about opioid safety in pregnancy, particularly for outcomes later in childhood is scarce. It has been suggested that opioids can modulate immune system and increase the risk of infections. Our goal was to study the impact of ...
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
abstract::Adverse drug reaction surveillance conducted by the US Federal Food and Drug Administration (FDA) is important for detecting new safety information about pharmaceuticals. FDA has sought to stimulate reporting of reactions by practitioners and manufacturers. Over the five years from 1989 to 1993, reporting more than do...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/(SICI)1099-1557(199611)5:6<393::AID-PDS235
更新日期:1996-11-01 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:To determine prescribing patterns by general physicians working in primary care (GPs) in Iran for the elderly and the prevalence of inappropriate prescribing. METHODS:We collected information about prescribed medicines for 10% of patients in primary care aged 65 years or above in six cities in one province dur...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.2106
更新日期:2011-05-01 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:PURPOSE:The success of an epidemiological study for drug safety surveillance or comparative effectiveness depends largely on design and analysis strategies besides data quality. The Observational Medical Outcomes Partnership (OMOP) methods community implemented a collection of statistical methods with extensive paramet...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3419
更新日期:2013-05-01 00:00:00
abstract:PURPOSE:The aims of this study are to examine the validity of diagnostic codes for psoriatic arthritis in The Health Improvement Network (THIN) and to examine the agreement between General Practitioner (GP) report and prescription records for disease modifying antirheumatic drugs (DMARDs). METHODS:Questionnaires were ...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.3677
更新日期:2014-09-01 00:00:00
abstract::Meloxicam (Mobic((R))) was introduced in the UK in 1996 as a nonsteroidal anti-inflammatory drug (NSAID). To help evaluate the postmarketing experience with meloxicam in the UK, we used the General Practitioners Research Database (GPRD) to characterize the baseline risk of an upper gastrointestinal (GI) event among ne...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/(SICI)1099-1557(200003/04)9:2<113::AID-PDS
更新日期:2000-03-01 00:00:00
abstract:PURPOSE:Longitudinal data on prescriptions of antidepressants (AD) in children and adolescents depression are scarce. This study aimed to examine AD prescription trends in children and adolescents in Germany. METHODS:Data of a large statutory health insurance company were analyzed for the period 2005-2012, and outpati...
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
abstract:PURPOSE:Observational pharmacoepidemiological studies can provide valuable information on the effectiveness or safety of interventions in the real world, but one major challenge is the existence of unmeasured confounder(s). While many analytical methods have been developed for dealing with this challenge, they appear u...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,评审
doi:10.1002/pds.4394
更新日期:2018-04-01 00:00:00
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:To evaluate whether the risk of coronary heart disease (CHD) differs among adult diabetic patients treated with thiazolidinediones (TZDs) and similar patients treated with combined oral metformin and sulfonylurea (M + S) therapy. METHODS:We conducted a retrospective cohort study involving 25 140 diabetic patie...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1356
更新日期:2007-05-01 00:00:00
abstract:PURPOSE:To enhance automated methods for accurately identifying opioid-related overdoses and classifying types of overdose using electronic health record (EHR) databases. METHODS:We developed a natural language processing (NLP) software application to code clinical text documentation of overdose, including identificat...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.4810
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:The objective of this study was to evaluate the validity and completeness of the General Practice Research Database (GPRD) as a tool for research into inflammatory bowel disease epidemiology. METHODS:Patients diagnosed with inflammatory bowel disease were identified from GPRD. Mailed surveys were sent to the g...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.698
更新日期:2002-04-01 00:00:00
abstract:AIM:The aim of the present study was to investigate to what extent patients using prescription antiobesity drugs (orlistat, sibutramine and rimonabant) concomitantly or concurrently used psychotropic drugs and analgesics and the association between this drug use and the patients' gender and age. An additional aim was t...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1896
更新日期:2010-03-01 00:00:00
abstract:PURPOSE:Administration of pegylated interferon-alpha (IFN-alpha) and ribavirin in adults with chronic hepatitis C (CHC) is a recommended therapeutic standard. Nevertheless, this therapeutic regimen rises numerous controversies. The aim of this study was to analyze adverse effects during the treatment with pegylated IFN...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1458
更新日期:2007-10-01 00:00:00
abstract:PURPOSE:This paper aimed to systematically review algorithms to identify transfusion-related ABO incompatibility reactions in administrative data, with a focus on studies that have examined the validity of the algorithms. METHODS:A literature search was conducted using PubMed, Iowa Drug Information Service database, a...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章,评审
doi:10.1002/pds.2325
更新日期:2012-01-01 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:PURPOSE:To describe the concerns raised by health plan members, providers and purchasers related to studying the comparative effectiveness of therapeutics using cluster randomized trials (CRTs) within health plans. An additional goal was to develop recommendations for increasing acceptability. METHODS:Eighty-four qual...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1754
更新日期:2009-07-01 00:00:00
abstract::The use of healthcare databases in research provides advantages such as increased speed, lower costs and limitation of some biases. However, database research has its own challenges as studies must be performed within the limitations of resources, which often are the product of complex healthcare systems. The primary ...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.2229
更新日期:2012-01-01 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::Schizophrenia is a life-threatening disease associated with mortality rates that are two to three times higher than those expected/observed in the general population. It is associated with high levels of suicide, particularly in young male patients soon after diagnosis. Delays in treating schizophrenia could contribut...
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 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:The thorough analysis of special drug characteristics requires information on the specific brand of a drug. This information is often not sought in pharmacoepidemiologic surveys although in many countries packages are labelled with an unequivocal code (in Germany called Pharmazentralnummer (PZN)). We aimed to a...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1406
更新日期:2007-09-01 00:00:00
abstract:PURPOSE:To compare the frequency of adverse drug reactions (ADRs) recorded by doctors with perceived ADRs reported by patients during hospitalization and post-discharge and to compare both to formal reporting in Thailand. SETTING:Tertiary teaching hospital, North-East Thailand. METHODS:Over a 6-month period doctors w...
journal_title:Pharmacoepidemiology and drug safety
pub_type: 杂志文章
doi:10.1002/pds.1708
更新日期:2009-03-01 00:00:00