Table 3.
Patient characteristics according to CTC number assessed by CellSearch
| Patients’ characteristics | CTC = 0 | CTC ≥ 1 | Total (%) |
|---|---|---|---|
| n = 34 | n = 27 | n = 61 | |
| Age | |||
| Median | 69 | 63 | 67 |
| (range) | (34–80) | (36–82) | (34–82) |
| Site of primary tumor | |||
| Right hemicolon | 14 | 9 | 23 (38%) |
| Left hemicolon | 7 | 7 | 14 (23%) |
| Rectum | 13 | 10 | 23 (38%) |
| Other | 0 | 1 | 1 (1%) |
| Site of metastasis | |||
| Liver only | 14 | 10 | 24 (40%) |
| Others | 20 | 17 | 37 (60%) |
| Disease status | |||
| Primary | 11 | 12 | 23 (38%) |
| Recurrence | 23 | 15 | 38 (62%) |
| KRAS status in primary tissue | |||
| Wild-type | 21 | 14 | 35 (57%) |
| Mutant | 9 | 10 | 19 (31%) |
| Unknown | 4 | 3 | 7 (12%) |