Remnant cholesterol inflammatory index and new-onset Fried-phenotype frailty in middle-aged and older Chinese adults: a prospective CHARLS cohort study
Composite indices combining remnant cholesterol with high-sensitivity C-reactive protein (hs-CRP) may capture frailty-relevant inflammatory–lipid risk. The remnant cholesterol inflammatory index (RCII) has been linked to cardiometabolic disease and Frailty-Index progression, but not to new-onset Fried-phenotype f...