International Urogynecology Journal

, Volume 21, Issue 2, pp 193–202 | Cite as

Urinary incontinence in nulliparous women before and during pregnancy: prevalence, incidence, and associated risk factors

  • Stephanie J. Brown
  • Susan Donath
  • Christine MacArthur
  • Ellie A. McDonald
  • Ann H. Krastev
Original Article

Abstract

Introduction

Few studies have examined associations of prepregnancy urinary incontinence (UI).

Methods

Multicentre prospective pregnancy cohort study (n = 1,507) using standardised measures to assess frequency and severity of UI.

Results

Prevalence of UI increased from 10.8% in the 12 months before the index pregnancy to 55.9% in the third trimester. Stress incontinence (36.9%) and mixed incontinence (13.1%) were more common during pregnancy than urge incontinence alone (5.9%). UI before pregnancy was associated with childhood enuresis (adjusted odds ratio (AdjOR) = 2.4, 95% confidence interval (CI) 1.6–3.4), higher maternal body mass index (AdjOR = 2.3, 95% CI 1.4–3.8), and previous miscarriages or terminations (AdjOR = 1.6, 95% CI 1.1–2.3). The strongest predictor of incident UI in pregnancy was occasional leakage (less than once a month) before pregnancy (AdjOR = 3.6, 95% CI 2.8–4.7).

Conclusions

Further research is needed to elucidate the complex interplay of prepregnancy and pregnancy-related factors in the aetiology of UI in nulliparous women.

Keywords

Childhood enuresis Nulliparous Pregnancy Prospective cohort study Urinary incontinence 

Abbreviations

BMI

Body mass index

CATI

Computer-assisted telephone interview

OR

Odds ratio

UI

Urinary incontinence

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Copyright information

© The International Urogynecological Association 2009

Authors and Affiliations

  • Stephanie J. Brown
    • 1
    • 2
  • Susan Donath
    • 3
  • Christine MacArthur
    • 4
  • Ellie A. McDonald
    • 1
  • Ann H. Krastev
    • 1
  1. 1.Healthy Mothers Healthy Families Research GroupMurdoch Childrens Research InstituteMelbourneAustralia
  2. 2.Department of General Practice and School of Population HealthUniversity of MelbourneMelbourneAustralia
  3. 3.Clinical Epidemiology and Biostatistics UnitMurdoch Childrens Research InstituteMelbourneAustralia
  4. 4.Department of Public Health, Epidemiology and BiostatisticsUniversity of BirminghamBirminghamUK

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