Understanding the determinants of health-related quality of life in rheumatoid arthritis-associated interstitial lung disease.

•Health related quality of life (HRQL) is impaired in patients with interstitial lung disease.•The physical components of HRQL appear worse in rheumatoid arthritis associated interstitial lung disease (RA-ILD) compared to idiopathic pulmonary fibrosis (IPF).•Differences in the physical components of HRQL between RA-ILD and IPF can be explained in part by dyspnea severity and joint symptoms.