[Epidemiological study of women adults with mixed urinary incontinence in China].
OBJECTIVE
To investigate the prevalence and the epidemiological factors of female mixed urinary incontinence (MUI) in China.


METHODS
In February to July 2006, 19 024 subjects aged over 20 years old in 6 Chinese regions including Northwest, Southwest, Northern China, Eastern China, Northeast and South China were selected. Questionnaires were used to investigate the general characters and the lower urinary tract symptoms in these subjects.


RESULTS
The overall prevalence of mixed urinary incontinence was 9.4% among these women and it increased with advancing age. In multiple logistic models, age, vaginal delivery, constipation, pelvic organ prolapse, chronic pelvic pain, respiratory system disease, menstrual disorder, urinary system disease, alcohol consumption, pelvic surgery, obesity as well as high educational level were independent risk factors for mixed urinary incontinence.


CONCLUSIONS
The prevalence of MUI increases with advancing age. Vaginal delivery, constipation and pelvic organ prolapse are risk factors for mixed urinary incontinence in China while high educational level is a protective factor.
Department of Obstetrics & Gynecology, Peking Union Medical College Hospital, Bejing, China.
Lin
L
Li
Lan
L
Zhu
Jing-he
JH
Lang
Shao-mei
SM
Han
Chun-yan
CY
Liu
Tao
T
Xu
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D011795:Surveys and Questionnaires; D014549:Urinary Incontinence / Q000453:epidemiology*; D014550:Urinary Incontinence, Stress / Q000453:epidemiology; D053202:Urinary Incontinence, Urge / Q000453:epidemiology; D055815:Young Adult