Table 1.
The clinical features of enrolled patients.
| Features | No. of patients (percentage) |
|---|---|
| Sex | |
| Male | 75 (56.39%) |
| Female | 58 (43.61%) |
| Age | |
| ≥50 | 99 (74.43%) |
| <50 | 34 (25.57%) |
| Median age | 58 (29~85) |
| Primary tumor location | |
| Right-side colon | 31 (23.31%) |
| Left-side colon | 36 (27.07%) |
| Rectal | 66 (49.62%) |
| Tumor size | |
| ≥5 cm | 53 (39.85%) |
| <5 cm | 76 (57.14%) |
| Unknow | 4 (3.01%) |
| MS status | |
| MSS | 121 (90.98%) |
| MSI-high | 12 (9.02%) |
| Pathological stage | |
| 0 | 2 (1.50%) |
| I | 18 (13.53%) |
| II | 42 (31.58%) |
| III | 59 (44.36%) |
| IV | 12 (9.02%) |
| Histological type | |
| Adenocarcinoma | 128 (96.24%) |
| other | 5 (3.76%) |
| Histological grade | |
| Well-differentiated | 2 (1.50%) |
| Moderate-differentiated | 114 (85.71%) |
| Poor-differentiated | 8 (6.01%) |
| Unknow | 9 (6.77%) |
MSS, microsatellite stability; MSI, microsatellite instability.