Association of kidney function and proteinuria with lower-extremity dysfunction in older Korean adults: a cross-sectional study.

Background/aims: Chronic kidney disease (CKD) is associated with complications that affect physical function and mobility. This study investigated the associations between kidney function, proteinuria, and lower-extremity dysfunction.

Methods: Data were obtained from the Korean National Health Insurance Service Health Screening Program, including individuals aged 66 years who participated in the National Screening Program for Transitional Ages in Korea.