HLA-DRB1 and multiminicore myopathy: On the other hand, the frequencies of HLA-DRB1*04:05–HLA-DQB1*04:01 (haplotype frequency 9.56% vs. 14.3% in the control group; P = 0.047; OR = 0.64) and HLA-DRB1*04:06–HLA-DQB1*03:02 (haplotype frequency 1.10% vs. 3.44% in the control group; P = 0.045; OR = 0.31) decreased in MMD patients.