Table 2.
Sensitivity and specificity of kinematics-based injury metrics for HIC15, RIC36, and BrIC for the three approximations: PCA-based method, triangles (Tri), and half-sine (HS) compared to the ground truth, considering thresholds of 50% risk of injuries.
| HIC | HIC | RIC | BrIC | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (50% risk–skull fracture) | (50% risk–concussion) | (50% risk–concussion) | (50% risk–concussion) | |||||||||
| PCA | Tri | HS | PCA | Tri | HS | PCA | Tri | HS | PCA | Tri | HS | |
| Sensitivity | 1.00 | 0.00 | 0.00 | 0.91 | 0.27 | 0.27 | 0.79 | 0.04 | 0.04 | 0.9 | 0.77 | 0.77 |
| Specificity | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.97 | 0.97 |