Evaluation of the 7th edition of the TNM classification in patients with resected esophageal squamous cell carcinoma

Figure 2 Survival curves for patient subgroups stratified by pG (histologic grade) and cancer location according to the 7^th edition TNM classification. The 5-year survival rate, the number of patients in each subgroup, and the P-value for comparison between each adjacent subgroup are indicated. A: With respect to pG, there was no significant difference between each adjacent pG classification; B: With respect to cancer location, there was no significant difference between each adjacent caner location classification.