Risk factors for hospitalization for lung disease in patients with rheumatoid arthritis: Findings from a central regional hospital

This study aimed to determine the rate and predictors of hospitalization for non-malignant lung disease in rheumatoid arthritis (RA) patients. We identified 27 patients who were hospitalized and treated with steroids(26 patients), methotrexate(14 patients), and a biological agent (6 patients). In addition to the 27 patients, we included 4 patients with RA who visited our unit but were hospitalized at another clinic, for a total of 31 patients. Advanced age, history of pulmonary disease, joint damage, functional impairment and steroid use were significantly associated with the risk of hospitalization. In the multivariate analysis, history of pulmonary disease and steroid use remained significant risk factors for hospitalization.