Table 2.
Results of random forest analysis for predictors (inflammatory plasma biomarkers) of Aβ PET status in CU older adults.
| Model | Sensitivity | Specificity | NPV | PPV | AUC |
|---|---|---|---|---|---|
| Model 1– 21 Predictor | 0.92 | 0.23 | 0.70 | 0.60 | 0.64 |
| Model 2– 10 Predictor | 0.84 | 0.23 | 0.38 | 0.43 | 0.62 |
| Model 3– 8 Predictor | 0.88 | 0.31 | 0.71 | 0.57 | 0.60 |
| Model 4– 5 Predictor | 0.88 | 0.31 | 0.71 | 0.57 | 0.63 |
Results were compared using sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and area under the curve (AUC).