GSTM1 and Miyoshi myopathy: The result revealed that the combination miR‐107 (HR = 0.388, 95% CI: 0.202‐0.748, P = .005) and miR‐15a‐5p (HR = 1.124, 95% CI: 1.027‐1.231, P = .011) with Hb (HR = 0.867, 95% CI: 0.787‐0.955, P = .004) had significant value in distinguishing MM from MUGS.