Workforce diversity in cardiothoracic surgery: An examination of recent demographic changes and the training pathway

The purpose of our study was to examine changes in the demographic makeup of resident physicians in integrated 6-year cardiothoracic surgery and traditional thoracic surgery residency programs from 2013 to 2022 compared with other surgical subspecialties and determine potential leaks in the training pathway.

Data from US Graduate Medical Education reports from 2013 to 2022 and medical student enrollment data from the Association of American Medical Colleges were obtained. Average percentages of women and underrepresented minorities were calculated in 2 5-year intervals: 2013 to 2017 and 2018 to 2022. Average percentages of women, Black, and Hispanic medical students and residents were calculated for the 2019 to 2022 period. Pearson χ² tests were conducted to determine significant differences in proportions of women, Black/African American, and Hispanic trainees across time (α = 0.05).

Thoracic surgery and I6 residents saw a significant increase in the proportion of women trainees across the 2 time periods (19.9% (210 out of 1055) to 24.6% (287 out of 1169) (P < .01) and 24.1% (143 out of 592) to 28.9% (330 out of 1142) (P < .05)), respectively. There was no significant change in the proportion of Black and Hispanic trainees in thoracic surgery fellowship or integrated 6-year cardiothoracic residency programs. Hispanic trainees were the only group whose proportion of cardiothoracic surgery trainees was not significantly lower than their medical school proportion. Women and Black trainees had significantly lower proportions of thoracic surgery residents and integrated 6-year cardiothoracic residency program residents than their proportions in medical school (P < .01).

Cardiothoracic surgery has not significantly increased the number of Black and Hispanic trainees during the past decade. The lower proportion of Blacks and women in thoracic surgery residency and fellowship programs compared with their proportion in medical schools is concerning and is an opportunity for intervention.