Table 4.
Selected clinical characteristics of colorectal cancer patients in the CRCPC
| Selected clinical characteristics | CRCPC |
| N=15 551 (%) | |
| Tumour site | |
| Colon | 46.3 |
| Rectum | 52.3 |
| Synchronous | 1.4 |
| AJCC stage | |
| Ⅰ | 16.4 |
| Ⅱ | 34.9 |
| Ⅲ | 34.5 |
| Ⅳ | 14.20 |
| Cell differentiation | |
| Undifferentiation/poor differentiation | 18.4 |
| Moderate differentiation | 9.2 |
| High differentiation | 72.4 |
| Histology | |
| Adenocarcinoma | 94.7 |
| Mucinous adenocarcinoma | 4.4 |
| Signet-ring cell carcinoma | 0.5 |
| Carcinoid/neuroendocrine carcinoma | 0.3 |
| CEA | |
| <5 µg/L | 37.0 |
| ≥5 µg/L | 63.0 |
| CA199 | |
| <37 µg/L | 9.4 |
| ≥37 µg/L | 90.6 |
AJCC, American Joint Committee on Cancer; CA199, carbohydrate antigen 199; CEA, carcinoembryonic antigen; CRCPC, Colorectal Cancer Patients Cohort.