Table 1 Baseline patient and tumor characteristics
Clinicopathological characteristics | CSA | RFA | PH | Unresectable | p-value |
|---|---|---|---|---|---|
n | 20 | 22 | 134 | 29 | Â |
Median age (years) | 66.7 | 60.0 | 62.3 | 60.8 | 0.151 |
  (IQR) | (9.3) | (16.7) | (13.8) | (17.4) |  |
Sex | Â | Â | Â | Â | 0.392 |
  Female | 10 (50%) | 10 (45%) | 55 (41%) | 8 (28%) |  |
  Male | 10 (50%) | 12 (55%) | 79 (59%) | 21(72%) |  |
Site of primary tumor | Â | Â | Â | Â | 0.732 |
  Colon | 12 (60%) | 15 (68%) | 84 (63%) | 21(72%) |  |
  Rectum | 8 (40%) | 7 (32%) | 50 (37%) | 8 (28%) |  |
Synchronous: metachronous liver metastasis | 4:16 | 10:12 | 44:90 | 14:15 | 0.136 |
Interval resection of primary tumor and detection liver metastasis | Â | Â | Â | Â | 0.385 |
  ≤12 months | 9 (45%) | 14 (64%) | 88 (66%) | 20 (69%) |  |
  >12 months | 11(55%) | 8 (36%) | 46 (34%) | 9 (31%) |  |
Node status of primary tumor | Â | Â | Â | Â | 0.479 |
  Negative | 8 (40%) | 6 (27%) | 50 (37%) | 7 (24%) |  |
  Positive | 12 (60%) | 16 (63%) | 84 (63%) | 22 (76%) |  |
Adjuvant chemotherapy after primary | Â | Â | Â | Â | 0.470 |
  No | 12 (60%) | 12 (55%) | 92 (69%) | 21 (72%) |  |
  Yes | 8 (40%) | 10 (45%) | 42 (31%) | 8 (28%) |  |
Size largest metastasis (cm) | Â | Â | Â | Â | Â |
  Median (IQR) | 4.0 (2.0) | 3.0 (2.0) | 5.0 (4.5) | 3.5 (4.0)* | 0.440 |
Number of liver metastases | Â | Â | Â | Â | <0.0001 |
  1 | 10 (50%) | 6 (27%) | 86 (64%) | 6 (21%) |  |
  >1 | 10 (50%) | 16 (63%) | 48 (36%) | 19 (66%) γ |  |
Preoperative CEA (μg/L) |  |  |  |  |  |
  Median (IQR) | 21.2 (64.8) | 12.0 (57.0) | 22.5(71.4)$ | 20.0 (116.3)& | 0.623 |
CRS | Â | Â | Â | Â | 0.009 |
  ≤2 | 15(75%) | 10 (46%) | 89 (66%) |  |  |
  >2 | 5 (25%) | 12 (55%) | 45 (34%) |  |  |
Surgical procedure | Â | Â | Â | Â | <0.0001 |
  No resection | 13 (65%) | 11 (50%) | - | 29 (100%) |  |
  < Hemihepatectomy | 6 (30%) | 7 (32%) | 36 (27%) |  |  |
  Hemihepatectomy | 1 (5%) | 3 (14%) | 56 (42%) |  |  |
  Extended | - | 1 (5%) | 42 (31%) |  |  |
  Hemihepatectomy |  |  |  |  |  |