Fig. 2

a Kaplan–Meier survival curve demonstrating differences in outcome for patients with connective tissue disease related-interstitial lung disease separated according to automated stratified groups. Group 1 (blue; mean survival 77.4 ± 2.7 months, n = 15), Group 2 (green; mean survival 66.4 ± 2.7 months, n = 138), Group 3 (yellow; mean survival 47.9 ± 5.2 months, n = 50). Log rank test P < 0.0001. b Kaplan–Meier survival curve demonstrating differences in outcome for patients with connective tissue disease related-interstitial lung disease separated according to the ILD-GAP model. Group 1 (blue; mean survival 73.3 ± 2.2 months, n = 28), Group 2 (green; mean survival 74.9 ± 2.7 months, n = 85), Group 3 (yellow; mean survival 53.6 ± 5.1 months, n = 51), Group 4 (magenta; mean survival 20.7 ± 5.5 months, n = 15). Log rank test P < 0.0001. c Kaplan–Meier survival curve demonstrating differences in outcome for patients with connective tissue disease related-interstitial lung disease separated according to the Stratified-CT model. Group 1 (blue; mean survival 77.0 ± 3.1 months, n = 13), Group 2 (green; mean survival 77.1 ± 2.3 months, n = 80), Group 3 (yellow; mean survival 57.5 ± 4.1 months, n = 72), Group 4 (magenta; mean survival 17.2 ± 5.6 months, n = 14). Log rank test P < 0.0001