Table 2 Number of screen-detected cancers, interval cancers, false positive examinations and true negative examinations
Group 1 | Group 2 | Group 3 | Group 4 | Group 5 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Total | n | % | n | % | n | % | n | % | n | % | |
Total examinations | 132,776 | 26,490 | 20.0 | 26,617 | 20.0 | 26,539 | 20.0 | 26,549 | 20.0 | 26,581 | 20.0 |
Screen detected cancers | 833 | 177 | 21.2 | 164 | 19.7 | 188 | 22.6 | 152 | 18.2 | 152 | 18.2 |
Interval cancers | 269 | 37 | 13.8 | 48 | 17.8 | 48 | 17.8 | 65 | 24.2 | 71 | 26.4 |
Interval cancers detected within 12 months after the examination | 110 | 19 | 17.3 | 15 | 13.6 | 13 | 11.8 | 26 | 23.6 | 37 | 33.6 |
False positive examinations | 2192 | 486 | 22.2 | 381 | 17.4 | 404 | 18.4 | 426 | 19.4 | 495 | 22.6 |
True negative examinations | 129,482 | 25,790 | 19.9 | 26,024 | 20.1 | 25,899 | 20.0 | 25,906 | 20.0 | 25,863 | 20.0 |