Fig. 3

Mortality risk across lnRCII, RC and CRP/hsCRP quartiles. Participants were categorized into quartiles (1–4) based on lnRCII, RC, or CRP/hsCRP levels, with the first quartile serving as the reference group. Analyses include all-cause mortality for NHANES (A) and CHARLS (B) cohort, and cardiovascular mortality (C) and cancer mortality (D) for NHANES cohort, with p-values indicating the significance of the associations