Multivariate analysis for SRP after 3 years in patients with moderate disease activity despite MTX treatment. Multivariate analysis for SRP after 3 years in patients with moderate disease activity despite MTX treatment. Baseline CRP in mg/L. N=94 excluding 2 patients with missing CRP value (SRP, significant radiographic progression; MTX, methotrexate; CRP, C reactive protein; RF, rheumatoid factor). B Fautrel et al. RMD Open 2015;1:e000018 Copyright © BMJ Publishing Group & EULAR. All rights reserved.