Table 2.
Clinicopathologic characteristics according to ypT-classification
| Characteristic | ypT0 (n=10) | ypT1-2 (n=7) |
|---|---|---|
| Gender | ||
| Male | 6 | 5 |
| Female | 4 | 2 |
| Median age (yr) | 64 (38-79) | 53 (41-64) |
| Median pre-CRT CEA (ng/mL) | 1.4 (0.8-4.5) | 1.1 (0.7-30.6) |
| Median post-CRT CEA (ng/mL) | 1.1 (0.5-5.0) | 1.8 (0.3-3.0) |
| Histologic grade (pre-CRT) | ||
| Well | 2 | 3 |
| Moderate | 8 | 3 |
| Clinical N-classification | ||
| 0 | 10 | 5 |
| 1 | 0 | 2 |
| Chemotherapy (preoperative) | ||
| 5-FU | 6 | 3 |
| Capecitabine | 4 | 3 |
| S-1+irinotecan | 0 | 1 |
| Chemotherapy (postoperative) | ||
| 5-FU (+leucovorin) | 3 | 5 |
| No | 7 | 2 |
CRT, chemoradiotherapy; CEA, carcinoembrynonic antigen; 5-FU, 5-fluorouracil.