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Review
. 2011 Aug 1:3:123-32.
doi: 10.2147/OAJU.S21091.

Effect of weight loss on urinary incontinence in women

Emily L Whitcomb  1 , Leslee L Subak
Affiliations
Review

Effect of weight loss on urinary incontinence in women

Emily L Whitcomb et al. Open Access J Urol. .

Abstract

Background: The purpose of this research was review the epidemiology of the association of obesity and urinary incontinence, and to summarize the published data on the effect of weight loss on urinary incontinence.

Methods: A literature review of the association between urinary incontinence and overweight/obesity in women was performed. Case series and clinical trials reporting the effect of surgical, behavioral, and/or pharmacological weight loss on urinary incontinence are summarized.

Results: Epidemiological studies demonstrate that obesity is a strong and independent risk factor for prevalent and incident urinary incontinence. There is a clear dose-response effect of weight on urinary incontinence, with each 5-unit increase in body mass index associated with a 20%-70% increase in risk of urinary incontinence. The maximum effect of weight on urinary incontinence has an odds ratio of 4-5. The odds of incident urinary incontinence over 5-10 years increase by approximately 30%-60% for each 5-unit increase in body mass index. There appears to be a stronger association between increasing weight and prevalent and incident stress incontinence (including mixed incontinence) than for urge incontinence. Weight loss studies indicate that both surgical and nonsurgical weight loss leads to significant improvements in prevalence, frequency, and/or symptoms of urinary incontinence.

Conclusion: Epidemiological studies document overweight and obesity as important risk factors for urinary incontinence. Weight loss by both surgical and more conservative approaches is effective in reducing urinary incontinence symptoms and should be strongly considered as a first line treatment for overweight and obese women with urinary incontinence.

Keywords: obesity; urinary incontinence; women.

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Figures

Figure 1
Figure 1
The association between body mass index (BMI) and prevalent urinary incontinence (UI) by type, adjusted for age, parity, coughing and dyspnea. Values are expressed as odds ratios. Data from Hannestad et al. A) Any incontinence. B) Severe incontinence. Reprinted from Journal of Urology, 182(6 Suppl), Subak LL, Richter He, and Hunskaar S, Obesity and Urinary Incontinence: Epidemiology and Clinical Research Update, S2–S7, 2009, © with permission from Elsevier.
See this image and copyright information in PMC

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