rs6910071, the RA-associated HLA-DRB1 tag-SNP in LD with rs2070600, was associated with HLA-DQA2 (P = 2.4 × 10–21) and HLA-DRB1 (P = 1.5 × 10–7). This evidence concerns the gene HLA-DQA2 and rheumatoid arthritis.