The median time from DM symptom onset to the blood sample assayed for anti‐ACE2 IgM was 1.3 years for the anti‐ACE2‐IgM‐negative group compared with 0.7 years in the anti‐ACE2‐IgM‐positive group (Wilcoxon rank sum test P = 0.41). The gene discussed is ACE2; the disease is dermatomyositis.