KDR and rheumatoid arthritis: The VEGFR2 rs11941492 TT genotype (TT vs CT + CC) may decrease the risk of RA among female patients, CRP-positive patients, ACPA-negative patients, RF-positive patients, patients with a DAS28 of ≥3.20, and those with an ESR of <25, which indicated VEGFR2 rs11941492 C/T gene polymorphism was not associated with the severity and progression of RA.