Table 4.
Results from ROC analysis in the whole sample: cut-off scores, sensitivity, specificity, and area under the curve (AUC) of the six cumulative exposure indexes.
| Cumulative Exposure Indexes | Cut-off | % Sensitivity | % Specificity | AUC (95% CI) |
|---|---|---|---|---|
| Actual Frequency | 210.25 | .625 | .638 | .620 (.500 −.741) |
| Recoded Frequency | 23.50 | .833 | .449 | .663 (.562 −.764) |
| Variety | 15.50 | .958 | .324 | .662 (.565 −.759) |
| Nomothetic Severity | 46.28 | .958 | .357 | .666 (.569 −.762) |
| Idiographic Severity | 53.50 | .833 | .659 | .794 (.713 −.874) |
| Combined Approach | 591.73 | .625 | .638 | .622 (.503 −.741) |