Fig. 2

Flow chart of the study. Twenty-three of 44 patients with CLD and 99 of 150 patients without CLD completed observation over five years. The flow chart shows the reasons for the discontinuations of observation in LORA with and without CLD. LORA: late-onset rheumatoid arthritis, CLD: chronic lung disease, GCs: glucocorticoids, ILD: Interstitial lung disease; SIE: serious infectious event