Abstract: Objective To study the impact of international certification of medical education after graduation on the competency-based training of residents. Methods In September 2017 and November 2021, that is, two years before and after the Peking University First Hospital obtained the international certification of post-graduate medical education in 2019, a competency questionnaire survey was conducted for the guidance physicians responsible for the standardized training of residents in hospital, to study the impact of the certification process on the cognitive level of the guidance physicians' competency and the training results of residents. The data of rates were compared by Chi-square test. Results This study included 348 valid questionnaires in 2017 and 196 valid questionnaires in 2019. The results showed that after the certification, the rate of meeting the standards of the three roles of leader, health advocate and scholar who guide the competency indicators of doctors has been greatly improved, among which, the selection of leadership that can be demonstrated in clinical practice has increased from 265 (76.1%) to 183 (93.4%), the promotion of the health of patients, communities and people from 283 (81.3%) to 188 (95.9%), and the promotion of the development and dissemination of medical knowledge from 306 (87.9%) to 190 (96.9%), all P<0.05. In terms of the evaluation of resident training effect, the evaluation of the guidance physician on the three roles of resident medical experts, leaders and health advocates has been greatly improved. Among them, the selection and reasonable use of prevention and treatment measures has increased from 268 (77.0%) to 173 (88.3%), and the ability to demonstrate leadership in clinical practice has increased from 220 (63.2%) to 143 (73.0%), which can promote the health of patients, communities and people was from 246 (70.7%) to 162 (82.7%), all P<0.05. Conclusions The international certification of medical education after graduation is helpful to improve the teaching ability of doctors and the competency evaluation of residents, and promote the quality of standardized training of residents.

Key words: Education, medical, Authentication, Resident physician, Instructors, Competence, Teaching ability