HLA-DRB1 and melanoma: Data were analyzed according to the clinical characteristics of the defined subgroups.<h4>Results</h4>Compared to the control group, DRB1<i>∗</i>16:01 (4% vs. 1.3%, <i>p</i>=0.001, Pc = 0.035, OR = 3.28) and DQB1<i>∗</i>05:02 (4.9% vs. 2%, <i>p</i>=0.001, Pc = 0.017, OR = 2.54) were positivity associated with the susceptibility to melanoma.