Triglyceride–glucose muscle-loss index and all-cause and cardiovascular mortality in cardiovascular-kidney-metabolic syndrome stages 0–3: NHANES findings with validation in CHARLS
A composite triglyceride–glucose–muscle loss index (TyG-MLI), integrating insulin resistance (TyG) and a muscle-related metabolic reserve signal (cystatin C/creatinine ratio), may improve risk stratification in cardiometabolic–kidney–metabolic (CKM) stages 0–3, but its prognostic value is unclear. To exami...