Considering only Rem/RA, residual disease activity measured by DAS28-CRP correlated with VAS-Pain (r 0.433, p < 0.0001) and FACIT (r − 0.417, p < 0.0001), but not with KSS (p = 0.336 for VAS-Pain and p = 0.337 for FACIT, respectively). This evidence concerns the gene CRP and rheumatoid arthritis.