Incidental findings (IFs) stratified by sex and age
| Category | Mean age (years) | IF (n) | Mean age (years) | ||
| Female | Male | Female | Male | ||
| Category 1 | 61.9 | 59.5 | >6 | 76.6 | 71.9 |
| Category 2 | 61.1 | 54.2 | 5–6 | 69.6 | 58.8 |
| Category 3 | 43.4 | 42.1 | 3–4 | 55.0 | 51.9 |
| Category 4 | 40.5 | 39.6 | 1–2 | 42.2 | 40.3 |
| No IF | 32.9 | 33.8 | 0 | 32.9 | 33.8 |