| 分级 | 描述 |
|---|---|
| 1 | Trivial lack of awareness; euphoria or anxiety; shortened attention span; impaired performance of addition or subtraction. |
| 2 | Lethargy or apathy; minimal disorientation for time or place; subtle personality change; inappropriate behaviour. |
| 3 | Somnolence to semistupor, but responsive to verbal stimuli; confusion; gross disorientation. |
| 4 | Coma. |