Table 2.

Comparison between baseline categorical variables and serum soluble CD163 levels in patients with polymyositis/dermatomyositis-related interstitial lung disease

Variables	Soluble CD163, ng/mL	P value
Male/female	814 (300–1572)/822 (305–2759)	0.66
Current or former smoker/never smoker	791 (300–2758)/834 (305–2512)	0.39
CADM/others	730 (305–1750)/862 (300–2759)	0.09
Fever, yes/no	1009 (428–2512)/742 (300–2759)	0.03
Cough, yes/no	806 (426–1572)/826 (300–2759)	0.59
Dyspnea, yes/no	814 (428–2759)/822 (300–1572)	0.48
Muscle pain or weakness, yes/no	862 (300–2759)/730 (305–1750)	0.09
Rash typical of DM, yes/no	789 (300–2759)/1124 (814–1213)	0.30
Raynaud’s phenomenon, yes/no	593 (426–1137)/822 (300–2759)	0.27
Arthralgia, yes/no	1124 (305–2512)/773 (300–2759)	0.02
Anti-MDA5 antibody, positive/negative	887 (495–2512)/778 (300–2759)	0.09

Data are presented as median (observed range). All P values are derived from the Mann–Whitney U test. CADM clinically amyopathic dermatomyositis, DM dermatomyositis, MDA5 Melanoma differentiation-associated gene 5