Outcomes
We assessed the rate of decline in FVC (mL/year) over 52 weeks in all patients with RA-ILD, in subgroups of patients with RA-ILD based on high sensitivity C-reactive protein (hs-CRP) at baseline (<1 vs ≥1 mg/L; <3 vs ≥3 mg/L) and in patients with RA-ILD taking DMARDs and/or glucocorticoids at baseline. DMARDs were identified based on the WHO Drug Dictionary (version 19.MAR) standardised drug grouping with the addition of baricitinib and the exclusion of denosumab. Glucocorticoids were identified based on the WHO Drug Dictionary standardised drug grouping.We report the proportions of patients with RA-ILD with absolute and relative declines from baseline in FVC % predicted >10% at week 52. We also analysed the times to first acute exacerbation (defined in [