UK biobank population study shows a bidirectional assoc. betw RA & ILD (each @ incr risk for the other). In non-COPD pts, RA increased risk of COPD (HR=1.65) & in non-RA pts, COPD had a higher risk of future RA (HR=1.67). Both mediated by inflammation https://t.co/imn4ddV7CS https://t.co/UZaszEnCqt