Table 3: Measures of Accuracy Within DMIST Trial at 365 Days from Initial Screen*.
| Subjects | Measure of Accuracy |
Digital Mammography (mean ±SE) |
Film Mammography (mean ±SE) |
|---|---|---|---|
| All women | Sensitivity | 0.70 ± 0.030 | 0.66 ± 0.030 |
| Specificity | 0.92 ± 0.001 | 0.92 ± 0.001 | |
| PPV | 0.05 ± 0.004 | 0.05 ± 0.003 | |
| Less than 50 years | Sensitivity | 0.78 ± 0.050 | 0.51 ± 0.070 |
| Specificity | 0.90 ± 0.003 | 0.90 ± 0.003 | |
| PPV | 0.03 ± 0.005 | 0.02 ± 0.004 | |
| Pre- or peri-menopausal | Sensitivity | 0.72 ± 0.050 | 0.51 ± 0.060 |
| Specificity | 0.90 ± 0.002 | 0.90 ± 0.002 | |
| PPV | 0.04 ± 0.005 | 0.03 ± 0.004 | |
| Heterogeneous or extremely dense breasts | Sensitivity | 0.70 ±0.040 | 0.55 ±0.040 |
| Specificity | 0.91 ±0.002 | 0.90 ±0.002 | |
| PPV | 0.04 ±0.005 | 0.03 ±0.004 |
*
; PPV refers to positive predictive value; SE, standard error.