Table 1.
Epidemiological and pathological data of patients with synchronous colorectal metastases to the liver, operated on in one stage (Group A) and two stages (Group B) n (%)
| Characteristics |
Group A |
Group B |
P |
| (n = 25) | (n = 78) | ||
| Gender | NS | ||
| Male | 15 (58) | 47 (61) | |
| Female | 10 (42) | 31 (39) | |
| Age (yr, mean ± SD) | 63 ± 12 | 61 ± 14 | NS |
| Tumor differentiation | NS | ||
| Well | 6 (21) | 17 (21) | |
| Moderate | 9 (37) | 28 (36) | |
| Poor | 10 (42) | 24 (32) | |
| Astler-Coller staging27 | NS | ||
| Β2 | 5 (21) | 8 (11) | |
| C1 | 11 (42) | 37 (47) | |
| C2 | 9 (37) | 33 (42) | |
| Size of liver disease (cm) | NS | ||
| 1-3 cm | 6 (21) | 25 (32) | |
| 4-6 cm | 12 (50) | 33 (42) | |
| > 7 cm | 7 (29) | 20 (26) | |
| Colon location | |||
| Right colon | 17 (67) | 15 (18) | P < 0.005 |
| Left colon | 5 (21) | 55 (71) | P < 0.005 |
| Rectum | 3 (12) | 8 (11) | |
| Liver location | NS | ||
| Right lobe | 20 (83) | 61 (79) | |
| Left lobe | 5 (17) | 17 (21) |
NS: Not significant.