Figure 1

Comparison on the survival curves of low- and high-risk patients stratified by RI-LR and RI-DR. (a) Overall survival of low- and high-risk patients identified by RI-LR; (b) Overall survival of low- and high-risk patients identified by RI-DR; (c) Distant recurrence-free survival of low- and high-risk patients identified by RI-DR; (d) Progression-free survival of low- and high-risk patients identified by RI-DR.