Clinicopathologic features | T  ≥  N | T  <  N | P value |
---|---|---|---|
Gender | 1 | ||
 Male | 12 | 19 |  |
 Female | 5 | 7 |  |
Differentiation | 0.031* | ||
 Low | 12 | 9 |  |
 Moderate | 5 | 17 |  |
Lymphatic metastasis | 0.481 | ||
 Yes | 12 | 21 |  |
 No | 5 | 5 |  |
Infiltration degree | 0.071 | ||
 Tunica mucosa | 4 | 2 |  |
 Mucous layer outside | 13 | 17 |  |