Table 7 Risk factor of hematogenous metastasis in patients with stage III disease
| Â | Hematogenous metastasis | p value | |
|---|---|---|---|
Present (n = 8) | Absent (n = 40) | ||
Depth of tumor invasion | 0.600 | ||
 T2/3 | 4 (50.0) | 24 (60.0) |  |
 T4 | 4 (50.0) | 16 (40.0) |  |
Lymph node metastasis | 0.897 | ||
 N1/2 | 4 (50.0) | 21 (52.5) |  |
 N3 | 4 (50.0) | 19 (47.5) |  |
Histologic type | 0.273 | ||
 Differentiated | 4 (50.0) | 12 (30.0) |  |
 Undifferenciated | 4 (50.0) | 28 (70.0) |  |
Lymphatic invasion | 1.000 | ||
ly0/1/2 | 5 (62.5) | 25 (62.5) | Â |
 ly3 | 3 (37.5) | 15 (37.5) |  |
Venous invasion | 0.439 | ||
 v0/1 | 3 (37.5) | 21 (52.5) |  |
 v2/3 | 5 (62.5) | 19 (47.5) |  |
Lymphadectomy | 0.055 | ||
  < D2 | 5 (62.5) | 11 (27.5) |  |
 D2 | 3 (37.5) | 29 (72.5) |  |
Adjuvant chemotherapy | 0.242 | ||
 Present | 3 (37.5) | 24 (60.0) |  |
 Absent | 5 (62.5) | 16 (40.0) |  |