Table 2.
Patient characteristics. The stage of the disease was determined according to the classification of UICC (International Cancer Union).
| Sex | ||
| Male | 15 | 42.8% |
| Female | 20 | 57.1% |
| Total | 35 | |
| Age at the diagnosis (years) | 65 (41–94) | |
| Type | ||
| Colon | 28 | 80.0% |
| Right | 12 | 42.8% |
| Left | 14 | 50.0% |
| Transverse | 3 | 10.7% |
| Rectum | 7 | 20.0% |
| Stage (UICC) | ||
| is | 3 | 8.6% |
| I | 6 | 17.1% |
| II | 9 | 25.7% |
| III | 13 | 37.1% |
| IV | 4 | 11.5% |
| Neoadjuvant treatmenta | ||
| Yes | 6 | 17.1% |
| No | 29 | 82.8% |
a
Neoadjuvant treatment: 4 of the 6 patients had rectal cancer. Blood withdrawal for CTC analysis was done after neoadjuvant treatment.