Table 2.

Risk factors of ILD in patients with idiopathic inflammatory myopathies.

Covariate	Adjusted OR (95% CI)	p value
Age at diagnosis	1.029 (1.010–1.047)	0.002
Female	1.237 (0.757–2.021)	0.396
Gottron’s rash	1.138 (0.693–1.867)	0.610
Arthralgia	1.954 (1.144–3.339)	0.014
Mechanic’s hand	4.365 (0.946–20.144)	0.059
Dysphagia	0.717 (0.406–1.268)	0.253
Tumor	0.615 (0.280–1.351)	0.226
Lung infection	1.803 (1.068–3.046)	0.027
Tuberculosis	0.512 (0.229–1.143)	0.102
Respiratory failure	2.379 (0.716–7.910)	0.157
Hemoglobin	1.016 (1.002–1.031)	0.022
Ferritin	1.000 (1.000–1.001)	0.799
CAR	1.554 (1.091–2.212)	0.014
NLR	0.980 (0.919–1.046)	0.545
PLR	1.001 (0.999–1.002)	0.540
Anti-Ro52 antibody	1.441 (0.931–2.231)	0.101
Anti-ARS antibody	2.830 (1.673–4.787)	< 0.001
Anti-MDA5 antibody	7.472 (3.914–14.263)	< 0.001

CAR, the C-reactive protein to Albumin ratio; NLR, Neutrophil-to-lymphocyte ratio; PLR, platelet-lymphocyte ratio; ARS, aminoacyl-tRNA synthetase.