摘要:Background and Objectives: Previous research has found differences in preparation for entry into family medicine training between graduates of US and Canadian medical schools. However, this research was limited in that it utilized cross-sectional data to examine a longitudinal issue. This study aimed to examine these differences with a longitudinal data set. Methods: A comparison of the performance on the American Board of Family Medicine (ABFM) In-Training Exam (ITE) between 2014 and 2016 was conducted by examining the performance of Canadian medical school graduates and US medical school graduates longitudinally, as well as cross-sectionally, using independent t tests. Results: For first-year residents (PGY1), the Canadian 2014/2015 cohort showed significantly higher mean scores than US medical school graduates (USMG) and international medical school graduates (IMG). The Canadian 2015/2016 cohort showed no statistical difference from the USMGs, but did have a significantly higher mean than the IMGs. For second-year residents (PGY2), the Canadian 2014/2015 cohort showed a significantly lower mean than the USMG cohort, but had a significantly higher mean than the IMG cohort. The Canadian 2015/2016 cohort showed a statistically lower mean than the USMG cohort and no difference compared to the IMG cohort. Conclusions: Based on a comparison of ABFM ITE scores between 2014 and 2016, the Canadian medical school graduates performed as well as or better than the US graduates upon entry into residency, but performance was reversed for the second year of training. Our results also suggest an equity value of ACGME residency training independent of location of undergraduate medical training.