Pelvic floor muscle strength and urinary incontinence in hyperandrogenic women with polycystic ovary syndrome

Abstract

Hyperandrogenism in women with polycystic ovary syndrome (PCOS) could increase muscle mass and thereby pelvic floor muscle (PFM) strength, reducing the risk of urinary incontinence (UI). The aim of the present study was to assess PFM strength and UI among hyperandrogenic women with PCOS and a control group for comparison. This is an observational, cross-sectional, case-control study. Seventy-nine women, aged 18 to 40 years with a mean body mass index (BMI) of 23.4 kg/cm(2) were recruited at the University Hospital: PCOS (n = 36) and control group for comparison (n = 43). All PCOS women had clinical and/or laboratory hyperandrogenism (> 80 ng/dL) and control women had regular menstrual cycles. PFM strength was assessed by vaginal manometry. The International Consultation on Incontinence Questionnaire of Urinary Incontinence Short Form (ICIQ-UI SF) was used to assess UI. Descriptive analysis, analysis of variance (ANOVA) and Fisher's exact test were used for statistical analyses. There was no statistically significant difference in mean PFM strength between the PCOS and the control group: 2.7 cm H₂O (95% CI -6.2-11.6) p = 0.55. The prevalence of UI was 18.6% in the control group compared with 0% in the PCOS group p < 0.01. Women with PCOS showed absence of UI, but PFM strength did not differ from the control group.