Table 2.
Number of circulating tumor cells (CTCs) detected in the colorectal cancer cases.
| (A) CTC Count (PB)—2 mL of Blood | ||||
| Disease stages | No. of cases | Mean ± SEM | Range (median) | Mode |
| Non-colorectal cancer cases, NAC (−) | ||||
| Benign | 7 | 3.28 ± 0.7 | 0–6 (3) | 3 |
| Non-colorectal cancer cases, NAC (+) | ||||
| Benign | 1 | 1 ± N/A | N/A | N/A |
| Colorectal cancer cases, NAC (−) | ||||
| Stage 0 | 3 | 4 ± 1.7 | 1–7 (4) | N/A |
| Stage I | 29 | 5.62 ± 1.12 | 1–26 (4) | 4 |
| Stage II | 34 | 5.8 ± 1.83 | 0–57 (4) | 4 |
| Stage III | 29 | 6.3 ± 1.18 | 0–30 (3.5) | 4 |
| Stage IV | 10 | 4.6 ± 1.04 | 1–12 (3) | 3 |
| Colorectal cancer cases, NAC (+) | ||||
| Stage 0 | 0 | N/A | N/A | N/A |
| Stage I | 2 | 7 ± 7.0 | 0–14 (7) | N/A |
| Stage II | 5 | 9 ± 5.4 | 1–30 (3) | N/A |
| Stage III | 2 | 5 ± 1.0 | 4–6 (5) | N/A |
| Stage IV | 7 | 2 ± 0.48 | 1–5 (2) | 2 |
| (B) CTC Count (IMV)—2 mL of Blood | ||||
| Disease stages | No. of cases | Mean ± SEM | Range (median) | Mode |
| Non-colorectal cancer cases, NAC (−) | ||||
| Benign | 4 | 6.5 ± 1.50 | 3–9 (5) | 3 |
| Non-colorectal cancer cases, NAC(+) | ||||
| Benign | 1 | 0 ± N/A | N/A | N/A |
| Colorectal cancer cases, NAC (−) | ||||
| Stage 0 | 3 | 4.6 ± 2.18 | 2–9 (3) | N/A |
| Stage I | 20 | 8.25 ± 3.26 | 0–69 (5) | 4 |
| Stage II | 27 | 5.6 ± 0.91 | 0–21 (6) | 7 |
| Stage III | 19 | 4.7 ± 0.86 | 0–14 (3) | 3 |
| Stage IV | 7 | 6.8 ± 1.14 | 4–13 (6) | 5 |
| Colorectal cancer cases, NAC (+) | ||||
| Stage 0 | 0 | N/A | N/A | N/A |
| Stage I | 2 | 7 ± 2.0 | 0–14 (7) | N/A |
| Stage II | 4 | 7.2 ± 3.06 | 1–13 (7) | N/A |
| Stage III | 2 | 4 ± 4.0 | 0–8 (4) | N/A |
| Stage IV | 7 | 4.7 ± 0.83 | 1–7 (5) | 7 |
NAC—neoadjuvant chemotherapy; SEM—standard error of the mean; N/A—not available.