Table 1.
Patient clinical and pathological characteristics n (%)
| Clinical variable | Group A (n = 10) | Group B (n = 10) | P value |
| mean age (yr) | 68 (41-79) | 60 (30-73) | 0.150 |
| Male | 6 (60) | 4 (40) | 0.625 |
| pT stage | 1.000 | ||
| pT3 | 6 (60) | 6 (60) | |
| pT4 | 4 (40) | 4 (40) | |
| pN stage | 0.168 | ||
| pN0 | 0 | 1 (10) | |
| pN1 | 0 | 3 (30) | |
| pN2 | 4 (40) | 6 (60) | |
| Location | 1.000 | ||
| Right colon | 4 (40) | 4 (40) | |
| Left colon/rectum | 6 (60) | 6 (60) | |
| Histology differentiation | 1.000 | ||
| Well | 2 (20) | 2 (20) | |
| Moderately | 4 (40) | 4 (40) | |
| Poorly/mucinous | 4 (40) | 4 (40) | |
| Lymphovascular invasion | 6 (60) | 4 (40) | 0.625 |
| Preoperative CEA (median, range) | 1.74 (1.18-11.0) | 9.64 (1.12-512.9) | 0.017 |
Quantitative variables are represented as median (range); qualitative characteristics are represented as n (%). CEA: Carcinoembryonic antigen.