Performance Metric | Full model (N features = 41 | PTSD Severity at hospital only | Hospital features (N features = 22) |
Area under curve | 0.85 [0.83, 0.86] | 0.78 [0.76, 0.80] | 0.75 [0.73, 0.76] |
Sensitivity | 0.69 [0.66, 0.72] | 0.69 [0.66, 0.72] | 0.57 [0.53, 0.61] |
Specificity | 0.83 [0.80, 0.85] | 0.87 [0.86, 0.88] | 0.76 [0.73, 0.79] |
Positive predictive value | 0.65 [0.62, 0.69] | 0.63 [0.61, 0.66] | 0.53 [0.50, 0.56] |
Negative predictive value | 0.86 [0.84, 0.87] | 0.80 [0.79, 0.81] | 0.80 [0.79, 0.81] |
Overall accuracy | 0.78 [0.77, 0.80] | 0.78 [0.77, 0.80] | 0.70 [0.68, 0.72] |