Problem of immortal time bias in cohort studies: example using statins for preventing progression of Immortal time bias is increasingly common in cohort studies of drug effects.7 A recent example is a study of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins) that reported a 26% reduction in the risk of diabetes progression with one ye
The Secret of Immortal Time Bias in Epidemiologic Studies ... also known as immortal time bias. Here we consider this issue. In the Hemmelgarn study, a retrospective cohort of 187 clinic patients who were exposed to a MDC clinic were matched to 187 non-MDC clinic control patients to examine ...
Immortal time bias in observational studies of drug effects. 1. Pharmacoepidemiol Drug Saf. 2007 Mar;16(3):241-9. Immortal time bias in observational studies of drug effects. Suissa S. Comment in Pharmacoepidemiol Drug Saf. 2008 Oct;17(10):1036. PURPOSE: Recent observational studies suggest that various drugs ...
Immortal time bias in critical care research: application of time-varying Cox regression for observa Case Study Methods To determine whether immortal-time bias can influence the results of a prospective observational study and to describe the bias if observed, we analyzed the association between delirium and ICU length of stay in a cohort of mechanically
生活的藝術: immortal time bias Baseline comparison between exposed and unexposed may not be meaningful when immortal time exists Suissa S. Effectiveness of inhaled corticosteroids in chronic obstructive pulmonary disease: immortal time bias in observational studies. Am J Respir Crit Ca
Immortal time bias must be considered in observational studies show, by simulation, how bias occurs when immortal time is not incorporated correctly in observational studies. Immortal time bias must be considered in observational studies ...
Immortal time bias in observational studies of drug effectsy Immortal time bias in observational studies of drug effectsy Samy Suissa PhD1,2* 1From the McGill ...
Immortal time bias in observational studies of drug effects - Suissa - 2007 - Pharmacoepidemiology a Recent observational studies suggest that various drugs are remarkably effective at reducing morbidity ...
CiteULike: Immortal time bias in observational studies of drug effects. PURPOSE: Recent observational studies suggest that various drugs are remarkably effective at reducing ...
Understanding immortal time bias in observational cohort studies - Ho - 2012 - Anaesthesia - Wiley O Observational cohort studies are an important part of our research armamentarium, but are prone to ...
