Characteristics N = 52 | |
Gender Male 41 |
|
| Female 11 |
Age (years) Mean 58.6 ± 11.7 |
|
| Range 31 - 79 |
Differentiation Well 2 |
|
| Moderate 14 |
Poor 36 | |
Location of tumor Upper 13 |
|
| Middle 14 |
Lower 25 | |
Depth of invasion [7] T1 10 |
|
| T2 10 |
T30 | |
T4 32 | |
Lymph node metastasis * N0 20 |
|
| N1 10 |
N2 14 | |
N3 8 | |
Stage [8] I 15 |
|
| II 10 |
III 24 | |
VI 3 |