Characteristics of the study population
| Screening group | Reference group | p Value | |
|---|---|---|---|
| Population | 166 277 | 1 240 348 | |
| Person time (years) | 1 393 131 | 10 358 902 | |
| Sex | |||
| Female | 48.9% | 49.5% | <0.01 |
| Male | 51.1% | 50.5% | |
| Median age at invitation | 60.6 | 60.5 | 0.06 |
| 50−54 years | 21.8% | 22.0% | 0.10 |
| 55−59 years | 25.2% | 25.4% | 0.08 |
| 60−64 years | 22.9% | 22.8% | 0.24 |
| 65−69 years | 16.7% | 16.3% | <0.01 |
| 70−74 years | 13.0% | 12.8% | <0.01 |
| 74+ years | 0.4% | 0.8% | <0.01 |
The screening group includes persons invited to colorectal cancer screening in Vejle and Copenhagen counties. The reference group includes persons in the rest of Denmark in the same age group.