Initial head CT findings
| Characteristic | Neuroscience ICU (n=341) | Trauma ICU (n=207) | P value |
| SAH | 66% | 78% | 0.002 |
| SDH | 61% | 65% | 0.273 |
| EDH | 12% | 10% | 0.394 |
| IPH | 14% | 12% | 0.459 |
| Contusion | 39% | 29% | 0.016 |
| DAI | 1% | 6% | 0.018 |
| Herniation | 13% | 9% | 0.130 |
DAI, diffuse axonal injury; EDH, epidural hematoma; ICU, intensive care unit; IPH, intraparenchymal hematoma; SAH, subarachnoid hemorrhage; SDH, subdural hematoma.