Table 1.
Characteristics of the Study Population
| Number of participants | |
|---|---|
| (N=1,479) (%) | |
| Age (mean ± SD, years) | 60.4±7.2 |
| 50-59 | 732 (49.5%) |
| 60-69 | 559 (37.8%) |
| 70-75 | 188 (12.7%) |
| Sex | |
| Male | 566 (38.3%) |
| Female | 913 (61.7%) |
| BMI (mean ± SD, kg/m2) | 23.9±3.9 |
| Smoking | 141 (9.5%) |
| First-degree family history of colorectal cancer | 254 (17.2%) |
| Daily aspirin and/or NSAID user | 99 (6.7%) |
| Prevalence of colorectal neoplasia at colonoscopy | |
| Adenoma | 547 (37%) |
| Advanced neoplasia | 137 (9.3%) |
| Colorectal cancer | 14 (0.9%) |
| Participants with advanced neoplasia stratified by location (N) | 137 |
| Proximal | 44 (32%) |
| Distal | 85 (62%) |
| Both | 8 (6%) |
| Participants with advanced neoplasia stratified by size (N) | 137 |
| < 10 mm. | 7 (5%) |
| 10 - 14 mm. | 91 (67%) |
| 15 - 19 mm. | 25 (18%) |
| ≥ 20 mm. | 14 (10%) |
| Participants with advanced neoplasia stratified by morphology (N) | 137 |
| Pedunculated | 67 (49%) |
| Sessile | 64 (47%) |
| Flat | 6 (4%) |