Table 3 AHI-PI model performance measures in predicting presence or absence of Episodes of Hemodynamic Instability (EHI). EHI predictions within a 1-h prediction time frame against the AHI-PI scores for each window. Low and moderate risk groups are combined
AHI-PI Window level analysis | NIBP Patients [95% CI] | IAP Patients [95% CI] |
|---|---|---|
Total Number of Patients | 3,961 | 672 |
Number of AHI-PI Outputs—Low and High Risk | 2,840,129 | 1,489,366 |
Incidence | 2.9% [2.5%, 3.4%] | 11.0% [9.7%, 12.3%] |
Sensitivity | 86.3% [83.8%, 88.5%] | 89.7% [88.2%, 91.0%] |
Specificity | 80.5% [78.8%, 82.2%] | 78.3% [75.7%, 80.6%] |
AUC | 0.87 [0.85, 0.88] | 0.87 [0.86, 0.88] |
Positive Predictive Value | 11.7% [9.5%, 14.0%] | 33.7% [30.1%, 37.3%] |
Negative Predictive Value | 99.5% [99.4%, 99.6%] | 98.4% [98.0%, 98.7%] |
False Positive Rate | 19.5% [17.5%, 21.6%] | 21.7% [19.0%, 24.9%] |
False Negative Rate | 13.7% [11.1%, 16.8%] | 10.3% [8.8%, 12.1%] |
AUPRC | 0.13 [0.10, 0.15] | 0.37 [0.33, 0.40] |
F1 score | 0.21 [0.18, 0.24] | 0.49 [0.46, 0.52] |