Table 4.
Sensitivity, specificity and area under the curve of 4-item screen at various PCL-17 cut points for patients who reported trauma (N = 342)
| Sensitivity | Specificity | AUC | |
|---|---|---|---|
| PCL-17 ≥ 30 as reference standard | 0.78 (SE = 0.03) | ||
| PTSD screen = 1 | 0.85 | 0.48 | |
| PTSD screen = 2 | 0.52 | 0.93 | |
| PTSD screen = 3 | 0.21 | 1.0 | |
| PCL-17 ≥ 44 as reference standard | 0.74 (SE = 0.03) | ||
| PTSD screen = 1 | 0.94 | 0.32 | |
| PTSD screen = 2 | 0.64 | 0.72 | |
| PTSD screen = 3 | 0.30 | 0.94 | |
| PCL-17 ≥ 50 as reference standard | 0.73 (SE = 0.03) | ||
| PTSD screen = 1 | 0.95 | 0.26 | |
| PTSD screen = 2 | 0.70 | 0.66 | |
| PTSD screen = 3 | 0.35 | 0.92 |