Abstract Background Propensity scores are widely used to deal with confounding bias in medical research. An incorrectly specified propensity score model may lead to residual confounding bias; therefore it is essential to use diagnostics to assess propensity scores in a propensity score analysis. The current use of propensity score diagnostics in the medical literature is unknown. https://www.spidertattooz.com/Air-Force-Embroidered-OCP-Sew-On-Officer-Rank-Insignia-Major/