Table I.
No. of patients | 105 |
Gender (M/F) | 59/46 |
Age (years; mean ± SD) | 65.3±12.1 |
Tumor size (cm; mean ± SD) | 5.3±2.1 |
Histological type | |
Differentiated | 99 |
Undifferentiated | 6 |
Depth of invasion | |
T1/T2/T3/T4a/T4b | 1/19/40/17/28 |
Lymph node metastasis (−/+) | 50/55 |
Distant metastasis (−/+) | 82/23 |
TNM stage | |
I/II/III/IV | 17/31/34/23 |
Lymphatic invasion (weak/strong) | 64/41 |
Venous invasion (−/+) | 62/43 |
The weak group of lymphatic invasion indicated score 0 and 1, and the strong group indicated score 2 and 3 by the Japan Classification of Colorectal Cancer.