Table 1.
Demographic and baseline characteristics of patients with metastatic colorectal cancer
| Variables | N (%) |
|---|---|
| Number of patients | 453 (100) |
| Age (years) | |
| >50 | 285 (62.9) |
| Sex | |
| Male | 296 (65.3) |
| Location | |
| Right | 176 (38.9) |
| Left | 146 (32.2) |
| Rectal | 131 (28.9) |
| Palliative primary tumor resection | |
| Yes | 325 (71.7) |
| Chemotherapy | |
| First-line | |
| Oxaliplatin-based regimen | 303 (66.9) |
| Irinotecan-based regimen | 150 (33.1) |
| Second-line | |
| Oxaliplatin-based regimen | 96 (21.2) |
| Irinotecan-based regimen | 219 (48.3) |
| None | 138 (30.5) |
| Number of metastatic organs | |
| 1 | 275 (60.7) |
| 2 | 136 (30.0) |
| ≥3 | 42 (9.3) |
| CEA (ng/mL) | |
| >5 | 374 (82.6) |
| BMI (kg/m2) | |
| >24 | 105 (23.2) |
| ≤24 | 348 (76.8) |
Abbreviations: CEA, carcinoembryonic antigen; BMI, body mass index.