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The incidence of urinary incontinence across Asian, black, and white women in the United States

Authors
Journal
American Journal of Obstetrics and Gynecology
0002-9378
Publisher
Elsevier
Publication Date
Volume
202
Issue
4
Identifiers
DOI: 10.1016/j.ajog.2009.11.021
Keywords
  • Epidemiology
  • Incidence
  • Race
  • Urinary Incontinence

Abstract

Objective We calculated incidence rates of urinary incontinence by incontinence frequency and type over 4 years in Asian, black, and white women in the United States. Study Design Prospective analyses included 76,724 participants aged 37–79 years in the Nurses' Health Study cohorts with no incontinence at baseline. Results The 4-year incidence of incontinence at least monthly was higher in white women (7.3/100 person-years) compared with Asian (5.7/100 person-years; P = .003) and black women (4.8/100 person-years; P < .001). The incidence of at least weekly stress incontinence was significantly lower in black compared with white women (0.1 vs 0.8 per 100 person-years; P < .001). The difference between black and white women in the incidence of any incontinence and stress incontinence remained significant after adjusting for known risk factors ( P < .001 for both). Conclusion Urinary incontinence incidence differs by race. Studies to confirm these results and better understand underlying mechanisms are needed.

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