Table 3.
Correlation of categorized tumor/liver volume ratio and CEA serum level with baseline CTC numbers in stage IV CRC
| Total | Low CTC baseline (0–2) | High CTC baseline (≥3) | P value | |
|---|---|---|---|---|
| Tumor/liver volume ratio | ||||
| • Low (<30%) | 8/11 (73%) | 7 (100%) | 1 (25%) | 0.0242 |
| • High (≥30%) | 3/11 (27%) | 0 | 3 (75%) | |
| Serum CEA level (ng/ml) | ||||
| • <2.5 | 4 (17%) | 4 (24%) | 0 | 0.0019 |
| • 2.5–5 | 6 (25%) | 5 (28%) | 1 (14%) | |
| • 5–50 | 5 (21%) | 4 (24%) | 1 (14%) | |
| • 50–200 | 4 (17%) | 4 (24%) | 0 | |
| • >200 | 5 (21%) | 0 | 5 (72%) |
P values were calculated by Fisher's Exact test