| Polyp | Total | Women | Men | Right colon | Left colon | Mean age,years (range) | Proportion of all polyps, % | Proportion of 515 serrated polyps, % |
| Non-serrated adenoma | 964 | 381 | 583 | 508 | 456 | 65 (19–95) | 65 | NA |
| Hyperplastic polyp | 437 | 202 | 235 | 138 | 299 | 62 (18–76) | 30 | 85 |
| Sessile serrated adenoma | 57 | 37 | 20 | 51 | 6 | 65 (29–83) | 3.9 | 11 |
| Traditional serrated adenomas | 11 | 7 | 4 | 7 | 4 | 71 (45–85) | 0.7 | 2.1 |
| Mixed hyperplastic adenomatous polyp | 10 | 6 | 4 | 7 | 3 | 68 (51–86) | 0.7 | 1.9 |
| Total | 1479 | 633 | 846 | 711 | 768 | – | – | – |
NA, not applicable.