Use and reporting of inverse-probability-of-treatment weighting (IPTW) for multi-category treatments in medical research: a systematic review.

Causal inference methods for observational data represent an alternative to randomised controlled trials when they are not feasible or when real-world evidence is sought. Inverse-probability-of-treatment weighting (IPTW) is one of the most popular approaches to account for confounding in observational studies. In medical research, IPTW is mainly applied to estimate the causal effect of a binary treatment, even when the treatment has in fact multiple categories, despite the availability of IPTW estimators for multiple treatment categories.

Source: Journal of Clinical Epidemiology - March 29, 2024 Category: Epidemiology Authors: Fran çois Bettega, Monique Mendelson, Clémence Leyrat, Sébastien Bailly Tags: Original Article Source Type: research