Table 2.
Distribution of 54,997 screening examinations by sensitivity, specificity, BI-RADS density score, and MTR MEAN score, Denmark 2012–2013
| True positive | False positive | True negative | False negative | Sensitivity, % (95% CI) | Specificity, % (95% CI) | |
|---|---|---|---|---|---|---|
| All | 419 | 1304 | 53,112 | 162 | 72 (68–76) | 98 (97–98) |
| BI-RADS 1 | 88 | 204 | 15,327 | 25 | 78 (69–85) | 99 (98–99) |
| BI-RADS 2 | 187 | 613 | 20,903 | 61 | 75 (70–81) | 97 (97–97) |
| BI-RADS 3 | 127 | 420 | 14,222 | 57 | 69 (62–76) | 97 (97–97) |
| BI-RADS 4 | 17 | 67 | 2660 | 19 | 47 (30–65) | 98 (97–98) |
| MTR 1 | 86 | 242 | 13,742 | 27 | 76 (67–84) | 98 (98–98) |
| MTR 2 | 111 | 338 | 13,166 | 37 | 75 (67–82) | 98 (97–98) |
| MTR 3 | 133 | 358 | 13,111 | 38 | 78 (71–84) | 97 (97–98) |
| MTR 4 | 89 | 366 | 13,093 | 60 | 60 (51–68) | 97 (97–98) |