Practice variation in bilateral salpingo-oophorectomy at benign abdominal hysterectomy: a population-based study

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Abstract

Background: Bilateral salpingo-oophorectomy at benign hysterectomy is not recommended in premenopausal women who are in the premenopausal stage because of its potential associations with increased all-cause mortality and cardiovascular disease; however, contemporary practice patterns are unknown. Objective: This study aimed to quantify between-surgeon variation in bilateral salpingo-oophorectomy and identify surgeon and patient characteristics associated with bilateral salpingo-oophorectomy to evaluate current quality of care and identify targets for knowledge translation and future research. Study Design: We conducted a population-based retrospective cross-sectional study of adult women (≥20 years) undergoing benign abdominal hysterectomy from 2014 to 2018 in Ontario, Canada. Hierarchical multivariable logistic regression models, stratified by age group (<45, 45–54, ≥55 years), were used to model between-surgeon variation after multivariable adjustment for patient and surgeon characteristics. Cases of bilateral salpingo-oophorectomy were classified as potentially appropriate or potentially avoidable based on the presence or absence of diagnostic indications. Results: Of 44,549 eligible women, 17,797 (39.9%) underwent concurrent bilateral salpingo-oophorectomy, and 26,752 (60.1%) did not. In all three age strata, the individual surgeon providing care was one of the strongest factors influencing whether patients received bilateral salpingo-oophorectomy (median odds ratio, 2.00–2.53). Surgeons accounted for more than 22% of the residual observed variation in bilateral salpingo-oophorectomy in women aged 45–54 years compared with 16% and 14% of the residual observed variation in bilateral salpingo-oophorectomy in women aged <45 and ≥55 years, respectively. Non-gynecologic patient factors, such as obesity (odds ratio, 1.33; 95% confidence interval, 1.17–1.52; P

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Cusimano, M. C., Moineddin, R., Chiu, M., Ferguson, S. E., Aktar, S., Liu, N., & Baxter, N. N. (2021). Practice variation in bilateral salpingo-oophorectomy at benign abdominal hysterectomy: a population-based study. In American Journal of Obstetrics and Gynecology (Vol. 224, pp. 585.e1-585.e30). Mosby Inc. https://doi.org/10.1016/j.ajog.2020.12.1206

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