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Distribution of CRC
| Localization | 1980s (%) | 1990s (%) | P |
| Rectum | 2 484 (72.6) | 4 539 (66.9) | < 0.001 |
| Colon | 936 (27.4) | 2 242 (33.1) | < 0.001 |
| Distal | |||
| Sigmoid | 337 (9.9) | 844 (12.4) | < 0.001 |
| Descending colon | 226 (6.6) | 366 (5.4) | 0.02 |
| Total distal CRCs | 563 (16.5) | 1 210 (17.85) | |
| Proximal | |||
| Transverse colon | 87 (2.5) | 275 (4.1) | < 0.001 |
| Ascending colon | 286 (8.4) | 757 (11.2) | < 0.001 |
| Total proximal CRCs | 373 (10.9) | 1 032 (15.2) | < 0.001 |
| Others | |||
| Total number of CRCs | 3 420 | 6 781 |
