Figure 1

Study enrollment at Year 0 and Year 5. A flow diagram of the study shows the different degrees of RA-ILD based on 0–3 ILA scores in HRCT at Year 0 and outcome at Year 5 based on changes of Quantitative Modified ILD scores. Changes in the Quantitative Modified ILD score between 0–10% at Year 0 and Year 5 were classified as stable, while reduction of ILD scores by greater than 10% was classified as better (score reduction > 10%) and changes more than 10% increased as worse. HRCT = high-resolution computed tomography; ILD = interstitial lung disease; ILA = interstitial lung abnormality; RA = rheumatoid arthritis.