Fig. 2

Stratified analyses of the association between serum α-klotho levels (pg/mL) and the severity of UI. Each stratification adjusted for all factors (age, race/ethnicity, BMI, marital status, education level, PIR, smoking status, alcohol consumption, PA, diabetes, CKD, CVD, and vaginal delivery times) except the stratification factor itself. UI urinary incontinence, BMI body mass index, PIR ratio of family income to poverty, PA physical activity, CKD chronic kidney disease, CVD cardiovascular disease.