The prognosis of IIM-ILD varies depending on the type of IIM, with rapidly progressive ILD being associated with a poor prognosis, particularly in older patients, those with anti-melanoma differentiation-associated gene 5 (anti-MDA 5) antibodies, cardiac involvement, decreased blood lymphocytes, a low ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen, and hypoalbuminemia [10,11,12,13,14]. This evidence concerns the gene IFIH1 and interstitial lung disease.