Figure 4. Performance of the nomograms in stratifying on the basis of risk points. (A) The difference of OS among T3-4N0, T1-2N+ and T3-4N+. (B) The correspondence between AJCC stage and the risk stratification based on the nomogram predicting OS. (C) OS in the subgroups according to the risk stratifying in the training cohort. (D) OS in the subgroups according to the risk stratifying in the verification cohort. (E) OS in the subgroups according to the risk stratifying in the external verification cohort. (F) The difference of CSS among T3-4N0, T1-2N+ and T3-4N+. (G) The correspondence between AJCC stage and the risk stratification based on the nomogram predicting CSS. (H) CSS in the subgroups according to the risk stratifying in the training cohort. (I) CSS in the subgroups according to the risk stratifying in the verification cohort. (J) OS in the subgroups according to the risk stratifying in the external verification cohort.