Surgeon Gender and Performance Outcomes for Hysterectomies: Retrospective Cohort Study.

STUDY OBJECTIVE

To evaluate whether there are differences in several performance metrics between male and female surgeons for hysterectomies.

DESIGN

Multicenter retrospective cohort study. We matched surgeries performed by female surgeons to those by male surgeons using a propensity score and compared outcomes by gender after adjusting for years in practice and fellowship training.

SETTING

A total of 6 hospitals (3 academic, 3 community) in Ontario, Canada, between July 2016 and December 2019.

PATIENTS

All consecutive patients.

INTERVENTIONS

Hysterectomy.

MEASUREMENTS AND MAIN RESULTS

Primary outcome was a composite of any complication or return to emergency room (ER) within 30 days. Secondary outcomes were grade II or greater complications, return to ER, and operative time. We included 2664 hysterectomies performed by 77 surgeons. After propensity matching, 963 surgeries performed by females were compared with 963 performed by males. There were no differences in the primary (relative risk [RR], 0.92; 95% confidence interval [CI], 0.71-1.20; p = .56) or secondary outcomes of grade II or greater complication (RR, 1.01; 95% CI, 0.71-1.45; p = .96) or return to ER (RR, 0.81; 95% CI, 0.55-1.20; p = .30). However, surgeries performed by males were 24.72 minutes shorter (95% CI, 18.09-31.34 minutes; p <.001). Entire cohort post hoc regression analysis confirmed these findings. E-value analysis indicated that it is unlikely for an unmeasured confounder to undo the observed difference.

CONCLUSION

Although complication and readmission rates are similar, male surgeons may have a shorter operating time than female surgeons for hysterectomies, which may have implications for health systems and inequalities in surgeon renumeration.