Table 1. Clinicopathological features of the cohort.
| Clinical/pathological features | No. available (%) |
|---|---|
| Gender | |
| Male | 174 (57) |
| Female | 133 (43) |
| Mean age [range] | 71 years [41-91 years] |
| UICC stage | |
| Stage I | 35 (11) |
| Stage II | 117 (38) |
| Stage III | 79 (26) |
| Stage IV | 76 (25) |
| Tumor location | |
| Left colon | 171 (56) |
| Right colon | 136 (44) |
| Occlusion | |
| Yes | 35 (11) |
| No | 272 (89) |
| Tumor perforation | |
| Yes | 20 (7) |
| No | 287 (93) |
| Differentiation grade | |
| Grade 1–2 | 258 (84) |
| Grade 3 | 49 (16) |
| KRAS status | |
| Wild type | 101 (68) |
| Mutant | 48 (32) |
| BRAF status | |
| Wild type | 260 (86) |
| Mutant | 44 (14) |
| Microsatellite status | |
| MSS | 266 (87) |
| MSI | 40 (13) |
| CIMP status | |
| No CIMP | 22 (34) |
| CIMP-Low | 35 (55) |
| CIMP-High | 7 (11) |