BTG3 and rheumatoid arthritis: We further analyzed the relationship between VSTM1-v2 expression level and clinical characteristics of RA, including 28-joints disease activity score (DAS28), C-reactive protein (CRP), rheumatoid factor (RF), erythrocyte sedimentation rate (ESR), anti-cyclic citrullinated protein antibodies (anti-CCP) and antinuclear antibodies (ANA).