Blood-based biomarkers associated with progressive pulmonary fibrosis in idiopathic inflammatory myositis-associated interstitial lung disease: A retrospective cohort study from a respiratory center.
BACKGROUND Interstitial lung disease (ILD) is a common extramuscular manifestation of idiopathic inflammatory myopathies (IIM). Progressive pulmonary fibrosis (PPF) can develop in a subset of patients with IIM-associated interstitial lung disease (IIM-ILD) and is associated with poor outcomes. This study aimed to evalu...