The association of combined metabolic score for insulin resistance and frailty index with incident cardiometabolic multimorbidity.
Cardiometabolic multimorbidity (CMM), defined as the coexistence of two or more cardiometabolic diseases, poses a growing global health burden. However, few studies have jointly evaluated the risk of CMM using indicators of both insulin resistance and frailty. Using data from the China Health and Retirement Longitudina...