Distribution of polyps in the segments of colon in individuals in whom the caecum was intubated at screening colonoscopy
| Rectum | Sigmoid colon | Descending colon | Transverse colon | Ascending colon | Caecum | Total | |
|---|---|---|---|---|---|---|---|
| Adenomas | |||||||
| Total | 56 (28) | 37 (18) | 33 (16) | 38 (19) | 26 (13) | 13 (6) | 203 (100) |
| <5mm | 46 (33) | 14 (10) | 22 (16) | 27 (20) | 21 (15) | 10 (7) | 140 (100) |
| 5–9mm | 6 (12) | 19 (40) | 8 (16) | 10 (20) | 4 (8) | 2 (4) | 49 (100) |
| ⩾10mm | 4 (29) | 4 (29) | 3 (21) | 1 (7) | 1 (7) | 1 (7) | 14 (100) |
| Moderate dysplasia | 6 (15) | 8 (20) | 9 (22) | 13 (32) | 2 (5) | 3 (7) | 41 (100) |
| Severe dysplasia | 0 | 3 (60) | 2 (40) | 0 | 0 | 0 | 5 (100) |
| Villous components | 3 (18) | 7 (41) | 2 (12) | 3 (18) | 1 (6) | 1 (6) | 17 (100) |
| High risk adenoma3-150 | 5 (18) | 12 (43) | 5 (18) | 3 (11) | 1 (4) | 2 (7) | 28 (100) |
| Hyperplastic polyps | 233 (78) | 28 (9) | 3 (1) | 20 (7) | 10 (3) | 5 (2) | 299 (100) |
| Mucosal tags | 108 (73) | 14 (10) | 9 (6) | 12 (8) | 2 (1) | 3 (2) | 148 (100) |
| Histology unknown3-151 | 20 (83) | 2 (8) | 1 (4) | 1(4) | 0 | 0 | 24 (100) |
| Total no of polyps | 417 (62) | 81 (12) | 46 (7) | 71 (11) | 38 (6) | 21 (3) | 674(100) |