Table 2 Abbreviated injury scale (AIS), Head Injury Criterion (HIC), and symptoms of head injury19
| AIS | HIC | Symptoms |
|---|---|---|
| 1 | 135-519 | Headache or dizziness |
| 2 | 520-899 | Unconsciousness <1 hour |
| 3 | 900-1254 | Unconsciousness 1-6 hours |
Table 2 Abbreviated injury scale (AIS), Head Injury Criterion (HIC), and symptoms of head injury19
| AIS | HIC | Symptoms |
|---|---|---|
| 1 | 135-519 | Headache or dizziness |
| 2 | 520-899 | Unconsciousness <1 hour |
| 3 | 900-1254 | Unconsciousness 1-6 hours |