RA vs. HC: p < 0.001Correlation with DAS28: r = 0.67, p < 0.001Correlation with ESR: r = 0.411, p = 0.001Correlation with CRP: r = 0.273, p = 0.035Correlation with serum creatinine, BUN, RF, and anti-CCP: p = NS. This evidence concerns the gene CRP and rheumatoid arthritis.