Table 2.
Coverage, interval cancer and false positive rates during the first four invitation rounds of the Danish pioneer screening mammography programs in the municipality of Copenhagen (1991–1998) and the county of Funen (1994–2001)
| Invitation round | ||||
|---|---|---|---|---|
| First % | Second % | Third % | Fourth % | |
| Copenhagen | ||||
| Coverage by examination | 71 (70–71) | 63 (63–64) | 63 (62–63) | 63 (63–64) |
| Interval cancer rate | 14 (11–17) | 28 (23–35) | 27 (22–34) | 33 (27–39) |
| False positive rate | 5.5 (5.2–5.7) | 3.9 (3.6–4.1) | 2.5 (2.3–2.7) | 2.4 (2.2–2.6) |
| Funen | ||||
| Coverage by examination | 85 (84–85) | 83 (83–84) | 82 (82–83) | 84 (84–84) |
| Interval cancer rate | 18 (15–22) | 34 (30–39) | 39 (34–44) | 32 (28–37) |
| False positive rate | 1.7 (1.6–1.9) | 1.1 (1.0–1.2) | 1.1 (1.0–1.2) | 1.0 (0.9–1.1) |
Percent and 95% confidence intervals