HLA-DRB1 and dermatomyositis: A positive relationship was also observed between HLA-DRB1*07 and DM (p = 0.01; pcorr NS; OR = 2.26; 95% CI: 1.12–4.59), while HLA-DRB1*03 seems to be protective against DM (p = 0.01; pcorr NS; OR = 0.26; 95% CI: 0.06–0.81).