We found that the FCGR2A [rs1801274] allele T increases the risk of RA in 1.4 times [CI: 1.08–1.8], p = 0.011, and the protective allele G reduces the risk of RA: OR = 0.72 [CI: 0.56–0.93], p = 0.011. The gene discussed is FCGR2A; the disease is rheumatoid arthritis.