Fig. 3

Survival outcomes according to CTR. There were no significant differences in RFS and OS among 0 ≤ CTR<0.5, 0.5 ≤ CTR<0.6, and 0.6 ≤ CTR<0.7 and in RFS and OS among 0.7 ≤ CTR<0.75, 0.75 ≤ CTR<0.8, and 0.8 ≤ CTR<1(P = 0.852 and P = 0.442, respectively); Significant differences existed in 5-year RFS and 5-year OS among 0 ≤ CTR<0.7, 0.7 ≤ CTR<1, and CTR = 1. CTR, consolidation-to-tumor ratio; RFS, recurrence-free survival; OS, overall survival