Clinical characteristics of the patients with DM-IP and DM without IP.

Values indicate the median (interquartile range). DM: dermatomyositis; IP: interstitial pneumonia; CADM: clinically amyopathic DM; RPIP: rapid progressive IP; Disease duration: disease duration from onset of respiratory symptoms of IP to initiation of treatments; MDA5: anti-melanoma differentiation-associated gene 5; Ab: antibody; ARS: aminoacyl-tRNA synthetase; CK: creatine kinase; LD: lactate dehydrogenase; CRP: C-reactive protein; AaDO2: alveolar-arterial oxygen difference; VC: vital capacity; Dlco: diffusion capacity of the lung for carbon monoxide; GGO: ground-glass opacity; PSL: prednisolone; CSA: cyclosporine; TAC: tacrolimus; IVCY: intravenous pulse cyclophosphamide.an = 13.bn = 7.cn = 14.dn = 3.Clinical characteristics of the patients with DM-IP and DM without IP.