PLGLA and rheumatoid arthritis: Compared with patients with RA with Gal-9 ≤11.6 ng/mL, patients with RA with Gal-9 >11.6 ng/mL had statistically higher RA disease activity indicators, including CRP, ESR, 28TJC, 28SJC, PtGA, PrGA, and Pain VAS.