CRP and rheumatoid arthritis: Specifically, the absolute counts of Treg cells were significantly negatively correlated with the DAS28, ESR, CRP, TJC, and SJC levels, while Th17/Treg was significantly positively correlated with DAS28, ESR, TJC, and SJC, which demonstrated the regulation of Treg cells levels and Th17/Treg ratio were beneficial to the recovery of RA.