Validation of NHANES-Based Findings on Urinary Incontinence and Frailty: A Japanese Cohort Study

A separate cohort study was conducted at a Japanese urogynecology and urology clinic from June 2018 to May 2024 to supplement NHANES findings. The study included 1,869 women, 60 years or older, who presented with urinary symptoms. The dataset comprises anonymized clinical data, featuring participants with stress urinary incontinence (SUI) and age-matched controls. Frailty was evaluated using both NHANES-based classification and Fried's Frailty Phenotype. To ensure group comparability, propensity score matching (PSM) was employed, adjusting for age and BMI. Urinary incontinence severity and frailty status were assessed using standardized NHANES criteria. The study also examined additional clinical factors, such as smoking history, arrhythmia, cerebral infarction, chronic lung disease, and grip strength, to explore their relationships with frailty and urinary dysfunction. This dataset offers researchers a valuable resource for investigating the connections between aging, urinary symptoms, and frailty in an East Asian population.