Higher cystatin C, but not creatinine, predicts frailty risk in individuals with normal kidney function
Objective This study investigates the associations of creatinine and cystatin C with frailty risk in individuals with normal kidney function, using data from the Health and Retirement Study (HRS) and the China Health and Retirement Longitudinal Study (CHARLS). Methods We used CKD-EPI to estimate glomerular filtration r...