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t-tau & F2 iP in diagnosis of pathologically confirmed AD (N = 54)
| One Positive (%) | Both Positive (n%) | |
|---|---|---|
| Sensitivity | 76 | 49 |
| Specificity | 71 | 94 |
| PPV | 85 | 95 |
| NPV | 60 | 46 |
| Overall accuracy | 76 | 63 |
| PLR | 2.7 | 8.3 |
| NLR | 3.3 | 1.8 |
Abbreviations: negative likelihood ratio (NLR), negative predictive value (NPV).
