Fig. 6

Validation of the PTG score in The Cancer Genome Atlas and Peking University Cancer Hospital cohorts. A, B Kaplan–Meier curves for the OS and PFS of GC patients in the low and high PTG score groups from The Cancer Genome Atlas (TCGA) cohort. C AUC of time-dependent ROC curves at 1, 3 and 5 years for the TCGA cohort. D PCA analysis showed different distribution patterns in the low and high PTG score groups from the TCGA cohort. The ellipse represents the 95% confidence interval. E, F Kaplan–Meier curves for the OS and PFS of GC patients in the low group and high PTG score groups from the Peking University Cancer Hospital (PKUCH) cohort. G AUC of time-dependent ROC curves at 1, 3 and 5 years from the PKUCH cohort. H PCA showed different distribution patterns in the low and high PTG score groups from the PKUCH cohort. The ellipse represents the 95% confidence interval