Urinary Incontinence 4 and 12 Years After First Delivery: Risk Factors Associated With Prevalence, Incidence, Remission, and Persistence in a Cohort of 236 Women

AimsOur aim was to study risk factors associated with prevalence, incidence, and remission of UI 4 and 12 years after first delivery. MethodsSeven hundred seventy-four nulliparous women who gave birth in 1996 in two French maternity units at term received a questionnaire about their urinary symptoms in 2000 and again in 2008. Two hundred thirty-six women returned a questionnaire about UI 4 and 12 years after first delivery. Four groups of women were built: (A) women continent 4 and 12 years after first delivery; (B) women continent at 4 and incontinent at 12 years; (C) women incontinent at 4 and continent at 12 years; and (D) women incontinent at 4 and 12 years. Multivariate logistic regressions were used to determine risk factors of UI prevalence (groups B+D vs. A+C), incidence (B vs. A), remission (C vs. D), and onset of UI (D vs. B). ResultsFactors associated with UI 12 years after first pregnancy were: BMI (OR=1.17 [95%CI: 1.04-1.32], by 1kg/m(2)) and increasing BMI (1.43 [1.19-1.73]), first child's weight (1.08 [1.001-1.16], by 100g) and UI during first pregnancy (3.77 [1.83-7.76]). Factors associated with UI incidence were age at first delivery (0.86 [0.75-0.98]) and high BMI (1.24 [1.05-1.45]). Increasing BMI, UI during first pregnancy, and heavy first child reduce the likelihood of UI remission (0.37 [0.20-0.68], 0.11 [0.02-0.63], and 0.73[0.59-0.91], respectively). ConclusionsUI during first pregnancy could be indicative of individual susceptibility to UI. Obesity appears to be a modifiable factor for remission of UI in women. Neurourol. Urodynam. 33:1229-1234, 2014. (c) 2013 Wiley Periodicals, Inc.