Characteristics of 450 subjects free of previous adenomas or cancer at the first examination
| n (%) | |
|---|---|
| Sex | |
| Male | 152 (33.8) |
| Female | 298 (66.2) |
| Age (years) | |
| <50 | 170 (37.7) |
| 50–59 | 163 (36.2) |
| 60–69 | 89 (19.7) |
| ⩾70 | 28 (6.2) |
| Personal history | |
| Breast cancer | 40 (8.8) |
| Uterine cancer | 54 (12.0) |
| Other cancers | 22 (4.8) |
| First degree relative history | |
| Colorectal cancer | 13 (2.8) |
| Colorectal polyp | 61 (13.5) |
| Reasons for doing first examination1-150 | |
| Intestinal symptoms | 142 (31.5) |
| Rectal bleeding | 131 (29.1) |
| Screening | 345 (76.6) |
↵1-150 Several reasons per subject are possible.