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. 2020 Sep 11;13:9043–9057. doi: 10.2147/OTT.S262084

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© 2020 Li et al.

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The comparison of c-index of TNM and nomogram for PFS and OS in training cohort and validation cohort, respectively. (A) The c-index of TNM and nomogram for PFS in training cohort (0.539 vs. 0.675, p < 0.001) and validation cohort (0.602 vs. 0.697, p = 0.001). (B) The c-index of TNM and nomogram for OS in training cohort (0.567 vs. 0.662, p = 0.009) and validation cohort (0.605 vs. 0.664, p = 0.033).

Abbreviations: PFS, progression-free survival; OS, overall survival.