High dimensional versus conventional propensity score matching investigating gastrointestinal complications in coxib users vs. nonselective NSAIDS users

E. Garbe, S. Kloss, W. Schill, M. Suling & S. Schneeweiss
Background: High dimensional propensity score (hd-PS) adjustment has been proposed to improve control for confounding in pharmacoepidemiologic studies using longitudinal claims databases, as large numbers of empirically identified covariates may collectively serve as proxies for unobserved confounding.[for full text, please go to the a.m. URL]