IFIH1 and interstitial lung disease: In univariate analysis, MYOACT score (P < 0.001), DLCO% (P = 0.003), positivity of anti-MDA5 antibody (P = 0.009), use of steroid and IVIG (P = 0.015), nintedanib therapy (P = 0.030, OR value = 0.192) as well as ADM (P = 0.010) were found to be significantly correlated with risk of RP-ILD.