Table 1.
Clinical characteristics and pre-operative plans of the study population.
| Characteristics | Number of concerns |
|---|---|
| Gender | |
| Male | 94 |
| Female | 52 |
| Age, median (range) | 58 (37–80) |
| Primary site | |
| Right colon | 20 |
| Transverse colon (counted right) | 4 |
| Left colon | 48 |
| Sigmoid colon (counted left) | 14 |
| Rectum | 60 |
| Liver metastases occurrence | |
| Synchronous | 93 |
| Metachronous | 53 |
| Direct surgery | 29 |
| Pre-hepatectomy CEA level, median (IQR), ng/mL | 7.01 (0.613 – 651.5) |
| Number of metastases, median (range) | 2 (1–25) |
| Size of largest liver metastasis | |
| <5 | 132 |
| ≥5 | 14 |
| Resection margin | |
| R0 | 115 |
| R1 | 31 |
| Pre-operative therapy (regimen specified) | 112 |
| Oxaliplatin-based | 79 |
| Irinotecan-based | 32 |
| Other | 1 |