CRP and rheumatoid arthritis: To this end, we determined the final model by selecting the variables with P-values <0.05 in the 1st model and found 4 prognostic factors of CRRP, as follows: CRP at baseline (0.30 mg/dL increase, odds ratio [OR] = 1.04, 95% confidence interval [CI] 1.01–1.11, P = 0.01411), time-integrated DAS28-ESR during the 1 year postbaseline (12.4-unit increase, OR = 1.62, 95%CI 1.17–2.59, P = 0.00267), RA typical erosion (erosion score ≥3) at baseline (OR = 4.81, 95%CI 1.58–21.1, P = 0.01409), and the introduction of bDMARDs (OR = 0.15, 95%CI 0.06–0.38, P = 0.01477) (Figure 3).