CRP and rheumatoid arthritis: Spearman correlation analysis found that the NLR had a strong correlation with ESR, CRP, RF, C3, VAS, PGA, PhGA, and CPRI-RA were significantly positively correlated (all, P < .01), whereas negatively correlated with IgG, PF, and BP levels (all, P < .05), and these results are shown in detail in Table S3 (Supplemental Digital Content, https://links.lww.com/MD/Q66).