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. 2020 Oct;12(10):5774–5782. doi: 10.21037/jtd-20-1302

Figure 4.

Figure 4

Comparison of patients with ILD according to the composite scoring system including ILD diagnosis, CCIS, and %DLco (score ≤2 vs. =3 vs. ≥4). We categorized the patients having the composite score (≥3; the latter group in Figure 3) into two groups: score =3 vs. ≥4. Then we compared three-year ILD-related event-free survival rates between three groups: score ≤2 (n=137) vs. =3 (n=29) vs. ≥4 (n=14). Both log-rank and stratified log-rank tests showed that Kaplan-Meier survival curves of these groups differed significantly (P<0.001) (A: log-rank test; B: stratified log-rank test). CCIS, Charlson Comorbidity Index score; ILD, interstitial lung disease; DLco, diffusion capacity for carbon monoxide.