TABLE 1.
Demographic data and features of lesions for each group of participants.
| Control a (n = 43) | Serrated polyps (n = 16) | Adenoma (n = 165) | Cancer (n = 38) | |||
|---|---|---|---|---|---|---|
| SSL (n = 3) | HP (n = 13) | NAA (n = 119) | AA (n = 46) | |||
| Age | ||||||
| Mean (SD) | 57.1 (4.4) | 56.6 (5.0) | 57.6 (4.8) | 57.5 (4.4) | 58.1 (5.0) | 63.8 (13.0) |
| Sex | ||||||
| Female | 32 (74.4%) | 2 (66.7%) | 6 (46.2%) | 79 (66.4%) | 30 (65.2%) | 16 (42.1%) |
| Male | 11 (25.6%) | 1 (33.3%) | 7 (53.8%) | 40 (33.6%) | 16 (34.8%) | 22 (57.9%) |
| Localization | ||||||
| Proximal | ‐ | 2 (66.7%) | 1 (7.7%) | 58 (48.8%) | 15 (32.6%) | 10 (26.3%) |
| Distal | ‐ | 0 | 9 (69.2%) | 22 (18.5%) | 25 (54.3%) | 28 (73.7%) |
| Both | ‐ | 1 (33.3%) | 3 (23.1%) | 39 (32.7%) | 6 (13.1%) | 0 |
| Size | ||||||
| <10 mm | ‐ | 2 (66.7%) | 13 (100%) | 119 (100%) | 11 (24.0%) | ‐ |
| ≥10 mm | ‐ | 1 (33.3%) | ‐ | ‐ | 35 (76.0%) | ‐ |
| Dysplasia | ||||||
| Low‐grade | ‐ | ‐ | ‐ | 119 (100%) | 30 (65.2%) | ‐ |
| High‐grade | ‐ | ‐ | ‐ | ‐ | 16 (34.8%) | ‐ |
| Stage | ||||||
| I | ‐ | ‐ | ‐ | ‐ | ‐ | 9 (23.7%) |
| II | ‐ | ‐ | ‐ | ‐ | ‐ | 9 (23.7%) |
| III | ‐ | ‐ | ‐ | ‐ | ‐ | 14 (36.8%) |
| IV | ‐ | ‐ | ‐ | ‐ | ‐ | 6 (15.8%) |
Abbreviations: AA, advanced adenoma; HP, hyperplastic polyp; NAA, nonadvanced adenoma; SD, standard deviation; SSL, sessile serrated lesion.
a
Samples with no lesion identified on the colonoscopy.