Table 4.
Classification of 15 AA-related BC cases (D) and 184 other BC cases (−D) according to the full model (left panel) or short model (right panel) of logistic regression
| Classified | True | Total | Classified | True | Total | ||
|---|---|---|---|---|---|---|---|
| D | –D | D | –D | ||||
| Positive | 14 | 34 | 48 | Positive | 14 | 73 | 87 |
| Negative | 1 | 150 | 151 | Negative | 1 | 111 | 112 |
| Total | 15 | 184 | 199 | Total | 15 | 184 | 199 |
| Sensitivity | 93.3% | Sensitivity | 93.3% | ||||
| Specificity | 81.5% | Specificity | 60.3% | ||||
| Positive predictive value | 29.2% | Positive predictive value | 16.1% | ||||
| Negative predictive value | 99.3% | Negative predictive value | 99.1% | ||||
| Correctly classified | 82.4% | Correctly classified | 62.8% | ||||
| Net Benefit per 100 patients | + 5.3 | Net Benefit per 100 patients | + 5.1 | ||||
The risk threshold R (purposely chosen cut-off point of predicted probability) was 0.09 and 0.05 in the left and right panel, respectively. Net Benefit per 100 patients calculated from the above values