Table 1.
Basic characteristics of total patients with colorectal cancer liver-only metastases
| Characteristics | Total patients (n, %) |
|---|---|
| Age (years), range | 58 (20–82) |
| Gender (n=150) | |
| Male | 97 (64.7) |
| Female | 53 (35.3) |
| Preoperative chemotherapy (n=150) | |
| No | 91 (60.7) |
| Yes | 59 (39.3) |
| Preoperative HBV infection (n=146) | |
| Negative | 128 (87.7) |
| Positive | 18 (12.3) |
| Preoperative CEA level (n=144), ng/mL | |
| <200 | 132 (91.7) |
| ≥200 | 12 (8.3) |
| Preoperative LMR (median, range) | 3.33 (0.16–11.0) |
| Preoperative NLR (median, range) | 2.0 (0.6–82.0) |
| Preoperative PLR (median, range) | 123.71 (39.05–990.0) |
| Timing of metastasis (n=150) | |
| Synchronous | 94 (62.7) |
| Metachronous | 56 (37.3) |
| Number of metastatic tumors (median, range) | 1 (1–11) |
| Largest tumor size (cm), range | 2.8 (0.3–12.1) |
| Tumor distribution (n=150) | |
| Unilobar | 104 (69.3) |
| Bilobar | 46 (30.7) |
| Liver resection (n=150) | |
| Anatomic | 19 (12.7) |
| Non-anatomic | 131 (87.3) |
| Resection margin (n=150) | |
| Negative | 91 (60.7) |
| Positive | 59 (39.3) |
| Postoperative chemotherapy (n=150) | |
| No | 40 (26.7) |
| Yes | 110 (73.3) |
Abbreviations: CEA, carcinoembryonic antigen; HBV, hepatitis B virus; LMR, lymphocyte-to-monocyte ratio; NLR, neutrophil-to-lymphocyte ratio; PLR, platelet-to-lymphocyte ratio.