| Characteristic | SBTS (n = 43), n (%)/mean ± sd | ES (n = 63), n (%)/mean ± sd | Statistic | P |
|---|
| Primary tumour site | | | 5.809b | 0.055 |
| Left colon | 25 (58.1) | 31 (49.2) | | |
| Right colon | 7 (16.3) | 23 (36.5) | | |
| Rectum | 11 (25.6) | 9 (14.3) | | |
| Tumour differentiation | | 0.203b | 0.903 |
| High | 5 (11.6) | 7 (11.1) | | |
| Moderate | 30 (69.8) | 42 (66.7) | | |
| Poor | 8 (18.6) | 14 (22.2) | | |
| T stage | | | 0.256b | 0.905 |
| T3 | 17 (39.5) | 23 (36.5) | | |
| T4a | 24 (55.8) | 36 (57.1) | | |
| T4b | 2 (4.7) | 4 (6.3) | | |
| N stage | | | 0.987b | 0.611 |
| N0 | 16 (37.2) | 23 (36.5) | | |
| N1 | 15 (34.9) | 27 (42.9) | | |
| N2 | 12 (27.9) | 13 (20.6) | | |
| TNM stage | | | 0.51b | 0.972 |
| IIA | 8 (18.6) | 10 (15.9) | | |
| IIB | 7 (16.3) | 13 (20.6) | | |
| IIIB | 18 (41.9) | 25 (39.7) | | |
| IIIC | 6 (14.0) | 8 (12.7) | | |
| IV | 4 (9.3) | 7 (11.1) | | |
| Total number of lymph nodes | 23.77 ± 10.44 | 20.00 ± 8.489 | 2.042a | 0.479 |
| Number of positive lymph nodes | 3.12 ± 4.537 | 2.48 ± 4.704 | 0.698a | 0.478 |
| Adjuvant chemotherapy | | | 1.871a | 0.171 |
| No | 23 (53.5) | 42 (66.7) | | |
| Yes | 20 (46.5) | 21 (33.3) | | |
| Perineural invasion | | | 12.915b | 0.411 |
| No | 26 (60.5) | 33 (52.4) | | |
| Yes | 17 (39.5) | 30 (47.6) | | |
| Vascular invasion | | | 1.937b | 0.164 |
| No | 34 (79.1) | 42 (66.7) | | |
| Yes | 9 (20.9) | 21 (33.3) | | |
