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doi: 10.1097/GME.0000000000000118
Original Articles

Long-term overall and disease-specific mortality associated with benign gynecologic surgery performed at different ages

Gierach, Gretchen L. PhD, MPH1; Pfeiffer, Ruth M. PhD2; Patel, Deesha A. MS1; Black, Amanda PhD, MPH3; Schairer, Catherine PhD2; Gill, Abegail MPH4; Brinton, Louise A. PhD, MPH1; Sherman, Mark E. MD1

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Objective: As bilateral salpingo-oophorectomy is frequently performed with hysterectomy for nonmalignant conditions, defining health outcomes associated with benign bilateral salpingo-oophorectomy performed at different ages is critical.

Methods: We assessed mortality risk associated with benign total abdominal hysterectomy or bilateral salpingo-oophorectomy among 52,846 Breast Cancer Detection Demonstration Project follow-up study participants. Surgery and risk factor data were ascertained via baseline interview (1979-1986) and three questionnaires (1987-1998). During follow-up through December 2005 (mean, 22.1 y), 13,734 deaths were identified. We estimated hazard ratios (HRs) and 95% CIs for overall and disease-specific mortality for total abdominal hysterectomy or bilateral salpingo-oophorectomy performed by age 35, 40, 45, 50, or 55 years, compared with not having surgery, using landmark analyses and multivariable Cox regression.

Results: Undergoing bilateral salpingo-oophorectomy by age 35 years was associated with increased mortality risk (HR35 y, 1.20; 95% CI, 1.08-1.34), which decreased with age (HR40 y, 1.12; 95% CI, 1.04-1.21; HR45 y, 1.10; 95% CI, 1.03-1.17). Total abdominal hysterectomy alone performed by age 40 years was associated with increased mortality risk to a lesser extent (HR40 y, 1.08; 95% CI, 1.01-1.15). Analyses based on matched propensity scores related to having gynecologic surgery yielded similar results. Elevated mortality risks were largely attributable to noncancer causes.

Conclusions: Benign gynecologic surgeries among young women are associated with increased mortality risk, which attenuates with age.

© 2014 by The North American Menopause Society.


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