Figure 1.

Kaplan–Meier survival curves according to severity of CAT score. Solid line: CAT score ≤10; dash line: 11–20; dash and dotted line: 21–30; dotted line: >30. Survival curves were compared with the log-rank statistic, P = 0.0002.

Kaplan–Meier survival curves according to severity of CAT score. Solid line: CAT score ≤10; dash line: 11–20; dash and dotted line: 21–30; dotted line: >30. Survival curves were compared with the log-rank statistic, P = 0.0002.