Fibrosing interstitial pneumonia predicts survival in patients with rheumatoid arthritis-associated interstitial lung disease (RA-ILD)

Both cellular and fibrosing ILD patterns are common among RA-ILD patients who undergo surgical lung biopsy. These patients have a shortened survival when compared to the general population and all-comers with RA. Age and the presence of a fibrosing interstitial pneumonia predict shortened survival in these patients. Survival in UIP is similar to matched IPF patients.