Abstract: Objective To investigate the prevalence and influencing factors of stress incontinence in adult women in Weihui City. Methods From April to June 2022, adult women in Weihui City were selected by convenient sampling method, and the adult women who met the research conditions were investigated by questionnaire, routine urine test, and urodynamics test. The descriptive analysis method was used to analyze the prevalence of stress incontinence in adult women, and univariate and multivariate analysis methods were used to analyze the influencing factors of stress incontinence. Results A total of 1 645 effective subjects were obtained, and 308 cases of stress incontinence were detected, with a prevalence rate of 18.72%, including 184 cases of mild incontinence （59.74%）, 97 cases of moderate incontinence （31.49%）, and 27 cases of severe incontinence （8.77%）. Multivariate logistic regression analysis showed that age （OR=1.412）, body mass index ≥ 24.0 kg/m² （OR=2.393）, physical activity （OR=1.213）, menstruation （OR=2.208）, reproductive history （OR=3.086）, pelvic surgery history （OR=1.853）, urinary tract infection history （OR=1.451）, water intake （OR=1.567）, and timely urination （OR=0.692） were the influencing factors of stress incontinence in adult women. Conclusions The prevalence of stress incontinence in adult women in Weihui City is high, and mild stress incontinence is more common, which is affected by many factors. Effective interventions should be taken to address modifiable factors, such as guiding adult women to reduce the prevalence of stress incontinence by controlling body mass index, appropriate physical activity, ensuring water intake, and developing good urination habits.

Key words: Stress incontinence, Adult, Women, Prevalence rate, Influencing factor