The Lung in Rheumatoid Arthritis

Interstitial lung disease (ILD) is an increasingly recognized complication of rheumatoid arthritis (RA) and is associated with significant morbidity and mortality. In addition, approximately one-third of patients have subclinical disease with varying degrees of functional impairment. Although risk factors for RA-related ILD are well established (e.g., older age, male sex, ever smoking, and seropositivity for rheumatoid factor and anti-cyclic...