Table 4.
Diagnostic Performances according to breast density.
| Sensitivity (%) | Specificity (%) | Accuracy (%) | AUC | |
|---|---|---|---|---|
| Validation Set | 75.6 (468/619) | 90.2 (558/619) | 82.9 (1026/1238) | 0.903 |
| Parenchymal density | ||||
| A (n = 59) | 81.3 (26/32) | 100 (27/27) | 89.8 (53/59) | 0.946 |
| B (n = 242) | 80.9 (110/136) | 96.2 (102/106) | 87.6 (212/242) | 0.950 |
| C (n = 744) | 75.0 (234/312) | 90.3 (390/432) | 83.9 (624/744) | 0.900 |
| D (n = 193) | 70.5 (98/139) | 72.2 (39/54) | 71.0 (137/193) | 0.790 |
| p value* | 0.201 | <0.001 | <0.001 | |
| Test Set | 76.1 (471/619) | 88.5 (548/619) | 82.3 (1019/1238) | 0.906 |
| Parenchymal density | ||||
| A (n = 49) | 90.3 (28/31) | 100 (18/18) | 93.88 (46/49) | 0.960 |
| B (n = 252) | 75.9 (104/137) | 92.17 (106/115) | 83.33 (210/252) | 0.935 |
| C (n = 744) | 75.6 (236/312) | 88.43 (382/432) | 83.06 (618/744) | 0.899 |
| D (n = 193) | 74.1 (103/139) | 77.78 (42/54) | 75.13 (145/193) | 0.851 |
| p value* | 0.301 | <0.061 | <0.026 | |
*Chi-square test.