Table 2.
Accumulated population level results for the period from 1996 to 2011. Detailed legend: Main accumulated results for the period from 1996 to 2011 in the analysis of the multi-cohort model reproducing the population of Basque women invited into the breast cancer screening programme
| Screened population | Unscreened population | |||
|---|---|---|---|---|
| Mean | 95 % CI | Mean | 95 % CI | |
| Number of women | 411,782 | (411,619, 411,945) | 411,782 | (411,619, 411,945) |
| Participation rate | 77.80 % | (77.6 %, 77.9 %) | 0 % | (0.0 %, 0.0 %) |
| Number of mammograms | 1,308,030 | (1,304,309, 1,311,750) | 0 | (0, 0) |
| False positive results | 8,211 | (7,876, 8,546) | 0 | (0, 0) |
| False positive/women | 1.99 % | (1.91 %, 2.08 %) | - | - |
| False positive/mammography | 0.63 % | (0.60 %, 0.65 %) | - | - |
| Screening-detected BC | 5,267 | (4,999, 5,535) | 0 | (0, 0) |
| Total detected BC | 10,021 | (9,644, 10,399) | 8,567 | (8,215, 8,918) |
| Difference in BC detection | 1,454 | (1,316, 1,593) | - | - |
| Increase in BC detection | - | - | 17.0 % | (15,2 %, 18,8 %) |
| BC deaths | 1,512 | (1,370, 1,655) | 1,883 | (1,725, 2,041) |
| Difference in BC deaths | - | - | 371 | (299, 442) |
| Difference in BC deaths/BC deaths | - | - | 19.7 % | (16.3 %, 23.1 %) |
BC Breast cancer, CI Confidence interval