Skip to main content
. 2017 Jan 25;19:15. doi: 10.1186/s13075-016-1207-7

Fig. 3.

Fig. 3

Pneumonia-free survival curves of RA patients with or without interstitial lung disease (ILD). Curves are stratified by the presence or absence of ILD. Statistically significant differences were observed between patients with or without ILD (P < 0.0001, log-rank test)