Table 1.
Baseline characteristics of study participants (n = 61).
| Variables | n = 61 (%) |
|---|---|
| Male | 49 (80.3) |
| Mean age (years) | 55.57 ± 9.40 (27-75) |
| ECOG | |
| 0 | 25 (41) |
| 1 | 36 (59) |
| Primary cancer | |
| Colon | 24 (39.3) |
| Rectum | 37 (60.7) |
| Type of metastasis | |
| Synchronous | 24 (39.3) |
| Metachronous | 37 (60.7) |
| Adjuvant chemotherapy for primary cancer | |
| Yes | 29 (47.5) |
| No | 32 (52.5) |
| Number of liver metastatic tumors | 166∗ (2.72 ± 1.34/patient) |
| 1–3 | 41 (67.2) |
| 4–5 | 20 (32.8) |
| Size of the largest liver lesion | |
| ≤3 cm | 21 (34.4) |
| > 3 cm | 40 (65.6) |
| Sum of lesion diameters | †7.20 ± 3.95 cm |
| <5 cm | 26 (42.6) |
| 5–10 cm | 21 (34.4) |
| >10 cm | 14 (23.0) |
| Serum CEA | |
| ≤30 ng/mL | 40 (65.6) |
| >30 ng/mL | 21 (34.4) |
ECOG: Eastern Cooperative Oncology Group. ∗Total number of liver metastatic lesions. †Mean sum of tumor diameters in a patient.