| 肿瘤浸润深度 | |||
| T1 | 189 | 107 (56.6%) | <0.001 |
| T2 | 88 | 64 (72.7%) | |
| T3 | 311 | 285 (91.6%) | |
| T4 | 100 | 100 (100%) | |
| 淋巴结转移 | |||
| N0 | 297 | 201 (67.7%) | <0.001 |
| N1 | 115 | 94 (81.7%) | |
| N2 | 120 | 112 (93.3%) | |
| N3 | 156 | 149 (95.5%) | |
| TNM分期 | |||
| I | 202 | 117 (57.9%) | <0.001 |
| II | 160 | 129 (80.6%) | |
| III | 326 | 310 (95.1%) |