WBC (p < 0.001), lymphocyte (p < 0.001), and neutrophil numbers (p < 0.001); CRP (p < 0.007), CK (p < 0.001), and LDH levels (p < 0.006); and ESR (p < 0.03) were shown to be significantly increased in the anti-Jo1 antibody-positive myositis groups compared with those in the anti-MDA5 antibody-positive groups. Here, CRP is linked to myositis disease.