Table 1 Characteristics of patients with CRLMs in the three age groups
From: Multidisciplinary treatment for colorectal liver metastases in elderly patients
Variable | ≤ 64 years | 65-74 years | ≥ 75 years | p value |
|---|---|---|---|---|
(n = 265) | (n = 151) | (n = 46) | ||
Patients | Â | Â | Â | Â |
 Age, year | 56 (30-64) | 68 (65-74) | 80 (75-85) |  |
 Sex, male, n (%) | 162 (61.1) | 104 (68.9) | 33 (71.7) | 0.163 |
Primary tumor | Â | Â | Â | Â |
 Tumor differentiation, n (%) |  |  |  |  |
  Well or moderately | 244 (92.1) | 134 (88.7) | 41 (89.1) | 0.991 |
  Poorly | 6 (4.0) | 3 (2.0) | 1 (2.2) | |
 Node, positive, n (%) | 183 (69.6) | 102 (68.5) | 23 (51.1) | 0.056 |
Comorbidity | Â | Â | Â | Â |
 Hypertension, n (%) | 46 (17.6) | 37 (24.5) | 19 (41.3) | 0.001 |
 Diabetes mellitus, n (%) | 21 (7.9) | 26 (17.2) | 6 (13.0) | 0.016 |
 CNS conditions, n (%) | 7 (2.6) | 8 (2.3) | 4 (8.7) | 0.108 |
 Pulmonary disease, n (%) | 11 (4.2) | 6 (4.0) | 3 (6.5) | 0.740 |
 Cardiovascular disease, n (%) | 9 (3.4) | 11 (7.3) | 8 (17.4) | 0.0009 |
Liver metastases | Â | Â | Â | Â |
 Synchronous with primary tumor, n (%) | 151 (57.0) | 82 (54.3) | 23 (50) | 0.642 |
 Synchronous resection, n (%) | 97 (36.6) | 48 (31.8) | 14 (30.4) | 0.510 |
 Serum CEA, ng/mL | 6.6 (0.5-2606) | 7.4 (0.9-7828) | 9.1 (1.2-3097) | 0.638 |
 Size, cm | 2.2 (0.3-19.0) | 2.5 (0.2-10.5) | 3.0 (1.1-10.0) | 0.149 |
 Number | 2 (1-31) | 2 (1-33) | 2 (1-23) | 0.041 |
 Extrahepatic metastasis, n (%) | 46 (19.3) | 17 (12.5) | 6 (14.3) | 0.212 |