To further analyse the association between HLA alleles and DMD, we classify patients with DMD into groups of patients with deno mutation (n = 14) and patients with inherited mutation (n = 31) and compare the allele frequencies in HLA-A, HLA-B, HLA-DRB1 locus of the two groups with healthy control, respectively. Here, HLA-DRB1 is linked to Duchenne muscular dystrophy.