Table 1 Demographic and clinical features of patients
Characteristic | N = 133 | Characteristic | N = 133 |
|---|---|---|---|
Age (y) | Â | Lymphatic invasion | Â |
 ≤60 | 46 |  Positive | 17 |
 >60 | 87 |  Negative | 116 |
Gender (n) | Â | Vascular invasion | Â |
 Male | 94 |  Positive | 17 |
 Female | 39 |  Negative | 116 |
Tumor location | Â | Perineural invasion | Â |
 Cardia and fundus | 53 |  Positive | 2 |
 Body | 27 |  Negative | 131 |
 Antrum | 53 | Horizontal margin |  |
Tumor size (cm) |  |  Positive | 11 |
 ≤2.0 | 58 |  Negative | 122 |
 >2.0 | 75 | Vertical margin |  |
Tumor differentiation |  |  Positive | 21 |
 Differentiated-type | 67 |  Negative | 112 |
 Undifferentiated-type | 12 | Residual cancer |  |
 Mixed-type | 54 |  Positive | 18 |
Tumor invasion |  |  Negative | 115 |
 Mucosa (T1a) | 45 | Lymph node metastasis |  |
 Submucosa (T1b) | 88 |  Positive | 14 |
Ulceration |  |  Negative | 119 |
 Positive | 17 |  |  |
 Negative | 116 |  |  |