Abstract 154: Estimating Treatment Effects in More Than Two Treatment Groups via Propensity Score Weighting: Practical Guidance and Application from Anticoagulant Therapy in Atrial Fibrillation Study [Session Title: Abstract Poster Session I and Reception]

Conclusions: Our results showed IPTW methods, correctly employed under certain assumptions, are practical and relatively simple tools to control for selection bias and other baseline differences in observational studies evaluating the comparative treatment effects of more than two treatment arms. When preserving sample size is important and in the presence of time-varying confounders, IPTW methods have distinct advantages over propensity matching or adjustment.

Source: Circulation: Cardiovascular Quality and Outcomes - February 26, 2016 Category: Cardiology Authors: Adeboyeje, G., Sylwestrzak, G., Barron, J. Tags: Session Title: Abstract Poster Session I and Reception Source Type: research