Figure 2. Correlations between s-CRP and non–s-CRP levels. (A) s-CRP and u-CRP, (B) s-CRP and u-CRP/u-Cr, and (C) s-CRP and sa-CRP. Each top panel displays a scatterplot of log-transformed values with a linear regression line (red) and 95% confidence band (gray). Bottom panels show individual data points stratified by group: participants with SI (red squares) and controls (blue circles). CRP: C-reactive protein; r_sp: Spearman correlation coefficient; s-CRP: serum C-reactive protein; sa-CRP: saliva C-reactive protein; SI: systemic inflammation; u-CRP: urine C-reactive protein; u-CRP/u-Cr: creatinine-normalized urine C-reactivproteinn..