Cross-lag association between TyG-CVAI and frailty index: evidence from a natural population cohort in southwestern China
Background Frailty is a major public health challenge among middle-aged and older adults, closely associated with metabolic dysregulation and visceral fat accumulation. The product of the triglyceride-glucose index and the Chinese Visceral Adiposity Index (TyG-CVAI) comprehensively reflects insulin resistance and visce...