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Clinicopathological characteristics of the patients
| Gender (no.) | |
| Male | 36 |
| Female | 19 |
| Median age (yrs) | 73.6 |
| Tumor site (no.) | |
| Colon | 36 |
| Rectum | 19 |
| Cancer stage (no.) | |
| Adenoma | 1 |
| Tis | 2 |
| T1 | 4 |
| T2 | 6 |
| T3 | 31 |
| T4 | 11 |
| Differentiation (no.) | |
| Well | 10 |
| Moderately | 41 |
| Poorly | 3 |
| Nodal status (no.) | |
| Positive | 22 |
| Negative | 32 |
| Duke’s classification (no.) | |
| A | 28 |
| B | 2 |
| C | 18 |
| D | 6 |
| Distant metastasis (no.) | |
| Positive | 6 |
| Negative | 48 |
