The effect of demographic characteristics, Country of birth and country of medical training on the peer evaluations of internal medicine resident physicians.

: Peer review by resident physicians, a standard evaluation technique, has rarely been studied for potential biases related to demographic and cultural characteristics of trainees. : The study sought to determine whether peer evaluations were favorably biased toward trainees of similar background. : This observational study was conducted in the Internal Medicine residency of a large, metropolitan, community hospital, and included all 91 Internal Medicine residents who had entered the program from 1 July 2009 thru 30 June 2017.