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Patient characteristics
| Characteristics | n (%) |
| Sex | |
| Male | 21 (52.5) |
| Female | 19 (47.5) |
| Primary tumor location | |
| Ascending colon | 5 (12.5) |
| Transverse colon | 7 (17.5) |
| Sigmoid colon | 15 (37.5) |
| Rectum | 13 (32.5) |
| TNM stage | |
| I | 7 (17.5) |
| II | 14 (35.0) |
| III | 13 (32.5) |
| IV | 6 (15.0) |
| T factor | |
| T1 | 3 (7.5) |
| T2 | 7 (17.5) |
| T3 | 11 (27.5) |
| T4 | 19 (47.5) |
| Lymphatic invasion | |
| N0 | 19 (47.5) |
| N1 | 9 (22.5) |
| N2 | 12 (30.0) |
| Distant metastasis | |
| M0 | 34 (85.0) |
| M1 | 6 (15.0) |
TNM: Tumor-node-metastasis.
