Highest association with BD: HLA-B*51 (p = 6.82 × 10-32, OR 3.82)HLA-B57 (p = 1.02 × 10-5, OR 2.80, 95% CI = 1.77–4.43) and HLA-A03 (p = 9.68 × 10-3, OR 0.61, 95% CI = 0.41–0.89) identified as additional HLA genes associated with BD. This evidence concerns the gene HLA-B and Behcet disease.