Abstract: Objective To investigate the prevalence of stress incontinence among adult females in Beijing and analyze the related influencing factors. Methods From January to June 2023,a multi-stage stratified cluster sampling method was used to conduct a questionnaire survey and gynecological examination on adult females in Beijing. The descriptive analysis was used to analyze the prevalence of stress incontinence,and univariate and multivariate analyses were used to analyze the influencing factors of stress incontinence. Results A total of 1 621 adult females were investigated in this study,of whom 372 were diagnosed with stress incontinence,with a prevalence rate of 22.95%. Multivariate analysis showed that age （OR=2.859）,BMI index （OR= 1.964 for 24.0-27.9 kg/m²,OR=2.278 for ≥28.0 kg/m²）,menopause （OR=2.119）,parity ≥ 2 times （OR= 2.035）,history of vaginal delivery （OR= 1.558）,lateral episiotomy （OR= 1.621）,pelvic floor organ prolapse （OR=2.722）,diabetes mellitus （OR=2.360）,anxiety （OR= 2.869）,long-term constipation （OR=2.357）,sitting time >2 hours per day （OR=1 805）,oral contraceptives （OR= 2.478）,and urine holding habits （OR=1.996） were influencing factors for stress incontinence among adult females. Conclusions The prevalence rate of stress incontinence is high among adult females in Beijing,and there are numerous contributing factors. The condition can be effectively prevented through pelvic function training,adopting healthier lifestyle habits,and other measures.

Key words: Adult female, Stress incontinence, Influencing factor