Objective: To study the impact of premenopausal risk-reducing salpingo-oophorectomy (RRSO), compared with postmenopausal RRSO, on urinary incontinence (UI) ≥10 years later.
Design: Cross-sectional study, nested in a nationwide cohort.
Setting: Multicentre in the Netherlands.
Population: 750 women (68% BRCA1/2 pathogenic variant carriers) who underwent either premenopausal RRSO (≤45 years, n = 496) or postmenopausal RRSO (≥54 years, n = 254). All participants were ≥55 years at the time of the study.
Methods: Urinary incontinence was assessed by the urinary distress inventory-6 (UDI-6); a score ≥33.3 indicated symptomatic UI. The incontinence impact questionnaire short form (IIQ-SF) was used to assess the impact on women's health-related quality of life (HR-QoL). Differences between groups were analysed using regression analyses adjusting for current age and other confounders.
Main outcome measures: Differences in UDI-6 scores and IIQ-SF scores between women with a premenopausal and a postmenopausal RRSO.
Results: Women in the premenopausal RRSO group had slightly higher UDI-6 scores compared with women in the postmenopausal RRSO group (P = 0.053), and their risk of symptomatic UI was non-significantly increased (odds ratio [OR] 2.1, 95% confidence interval [95% CI] 0.93-4.78). A premenopausal RRSO was associated with a higher risk of stress UI (OR 3.5, 95% CI 1.2-10.0) but not with urge UI. The proportions of women with a significant impact of UI on HR-QoL were similar in the premenopausal and postmenopausal RRSO groups (10.4% and 13.0%, respectively; P = 0.46).
Conclusions: More than 15 years after premenopausal RRSO, there were no significant differences in overall symptomatic UI between women with a premenopausal and those with a postmenopausal RRSO.
Keywords: BRCA pathogenic variant carriers; health-related quality of life; menopause; premenopausal RRSO; preventive bilateral salpingo-oophorectomy; stress incontinence; urge incontinence.
© 2023 John Wiley & Sons Ltd.