Table 4.
Comparison of locations of index adenomas, post-colonoscopy colorectal cancer (PC-CRC) overall and PC-CRC in the same colorectal segment
| Index adenoma (%)a | PC-CRC overallb (%) | PC-CRC in the same segment (%) | |
|---|---|---|---|
| Location | n = 139,871 | n = 826 | n = 323 |
| Caecum | 9539 (8.9) | 144 (17.4) | 31 (9.6) |
| Ascending colon | 13,049 (12.1) | 179 (21.7) | 46 (14.2) |
| Transverse colon | 10,530 (9.8) | 70 (8.5) | 28 (8.7) |
| Descending colon | 10,424 (9.7) | 34 (4.1) | 16 (5.0) |
| Sigmoid | 42,812 (39.7) | 168 (20.3) | 108 (33.4) |
| Rectum | 29,710 (27.6) | 231 (28.0) | 94 (29.1) |
a
Only adenomas with known location.
b
Only PC-CRCs with known location.