Table 4.
Discrimination of Global CDR score by total ABC-DS score
| Comparisons: A vs. B |
Threshold | Sensitivity P(A|A) | Specificity P(B|B) | AUC | |
|---|---|---|---|---|---|
| A | B | ||||
| CDR 0/0.5 | CDR 1, CDR 2, and CDR 3 | 100.00 | 0.68 | 0.92 | 0.89 |
| CDR 0/0.5 and CDR 1 | CDR 2 and CDR 3 | 85.50 | 0.79 | 0.80 | 0.88 |
| CDR 0/0.5, CDR 1, and CDR 2 | CDR 3 | 70.50 | 0.89 | 0.97 | 0.97 |
If the total ABC-DS score is higher than the threshold, it is defined to be lower in severity. ABC-DS, ABC Dementia Scale; total ABC-DS score, sum of the scores of the 13 items of the ABC-DS; CDR, Clinical Dementia Rating; AUC, area under the receiver operating characteristic curve.