, Volume 21, Issue 8, pp 939-946
Date: 06 May 2010

Urge incontinence: estimating environmental and obstetrical risk factors using an identical twin study

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access

Abstract

Introduction and hypothesis

The objective of this study was to determine risk factors for urge urinary incontinence (UUI).

Methods

A multi-item survey was administered to a community sample of identical twin sisters from 2002–2008. Generalized estimating equations accounting for co-twin correlation were used to perform three different regression models on the outcome: UUI (yes vs. no).

Results

Mean age, median parity, and BMI were 41.4 ± 16.4 (18–85), 1.0, and 26.0 ± 6.5 (13.5–55.8), respectively. Thirty-five percent of women were post-menopausal, and 27.5% had UUI. Urge urinary incontinence was reported in 40.1% of parous versus 14.1% among nulliparous women (p < .0001). The rate of UUI was 40.6% after vaginal delivery, 36.7% after cesarean delivery, and 14.1% in nulliparous women (p < .0001). Obesity, age >40, and chronic constipation were also identified as risk factors for urge urinary incontinence.

Conclusion

Risk factors for UUI include parity, age, obesity, and chronic constipation. There was a 2.5-fold increased risk of UUI after one or more births, regardless of type of delivery.