Epidemiology of mixed urinary incontinence in China.
OBJECTIVE
To determine the prevalence and risk factors for mixed urinary incontinence (MUI) among Chinese women.


METHODS
In this cross-sectional survey study we analyzed the answers to a modified Bristol Female Lower Urinary Tract Symptoms questionnaire provided by 19024 women older than 20 years and from 6 regions in China.


RESULTS
The overall prevalence of MUI was 9.4%. The prevalence of MUI increased with age and reached 24.1% among women older than 70 years. Multivariable logistic regression analysis revealed that age, vaginal delivery, chronic constipation, pelvic organ prolapse, chronic pelvic pain, respiratory system disease, menstrual disorder, urinary system disease, alcohol consumption, pelvic surgery, obesity, and a low educational level were independent risk factors for MUI.


CONCLUSIONS
We found age, vaginal delivery, and chronic constipation to be the main risk factors for MUI among adult women in China.
Zhu
Lan
L
Department of Obstetrics and Gynecology, Peking Union Medical College, Beijing, China. Zhu_Julie@sina.com
Li
Lin
L
Lang
Jinghe
J
Xu
Tao
T
Wong
Felix
F
D000328:Adult; D000368:Aged; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D014549:Urinary Incontinence / Q000453:epidemiology*; D055815:Young Adult