Polyp location, median size and median number at screening among 81 individuals with serrated polyps
| Type of polyp | Total (Individuals, %) | Distal only | Proximal only | Distal and proximal | Size (mm, range) | Number (range) |
|---|---|---|---|---|---|---|
| Serrated polyp ≥10mm | 81 (100) | 35 | 7 | 39 | 5 (1–30) | 3 (1–19) |
| Hyperplastic polyp | 59 (72.8) | 47 | 3 | 9 | 4 (1–30) | 1 (1–9) |
| Traditional serrated adenoma | 1 (1.2) | 0 | 1 | 0 | 2 | 1 |
| Sessile serrated adenoma/polyp | 67 (81.5) | 30 | 13 | 23 | 8 (1–25) | 2 (1–10) |
| Without dysplasia | 64 (77.8) | 28 | 12 | 23 | 7 (1–25) | 2 (1–10) |
| With dysplasia | 3 (3.7) | 2 | 1 | 0 | 12 (5–20) | 1 (1–1) |
| Unclassified serrated polyp | 43 (53.1) | 29 | 5 | 9 | 5 (1–20) | 2 (1–7) |
| Non-advanced adenoma | 43 (53.1) | 25 | 10 | 8 | 4 (1–9) | 1 (1–2) |
Distal colon: colon distal to the splenic flexure. Proximal colon: colon proximal to the descending colon. Some rows do not add up due to unknown localisation of the polyp.