Table 1.
Characteristics of the pooled population, WBF and UDCA.
| Characteristics | WBF | UDCA | Pooled |
|---|---|---|---|
| n=611 | n=828 | n=1,439 | |
| Mean age, y ± SD | 66.0 ± 8.2 | 66.4 ± 8.2 | 66.2 ± 8.2 |
| Sex, Male, n (%) | 403 (66.0%) | 560 (67.6%) | 963 (66.9%) |
| Family history of colorectal cancer1, n (%) | 113 (19.9%) | 234 (28.3%) | 347 (24.9%) |
| Previous polyps2, n (%) | 228 (41.2%) | 355 (45.5%) | 583 (43.7%) |
| Any metachronous neoplasia3, n (%) | 313 (51.2%) | 347 (41.9%) | 660 (45.9%) |
| Proximal metachronous neoplasia, n (%) | 225 (37.3%) | 248 (30.1%) | 473 (33.1%) |
| Distal metachronous neoplasia, n (%) | 160 (26.5%) | 183 (22.2%) | 343 (24.0%) |
| Rectal metachronous neoplasia4, n (%) | 15 (2.5%) | 20 (2.4%) | 35 (2.4%) |
1
History of colorectal cancer in parent or sibling.
2
History of colorectal polyps before qualifying colonoscopy.
3
Colorectal adenoma or cancer detected during trial follow-up.
4
Rectal adenoma only