| Clinical score | Patient characteristics |
| 1 | Awake; agitated or restless or both |
| 2 | Awake; cooperative, oriented, and tranquil |
| 3 | Awake but responds to commands only |
| 4 | Asleep; brisk response to light glabellar tap or loud auditory stimulus |
| 5 | Asleep; sluggish response to light glabellar tap or loud auditory stimulus |
| 6 | Asleep; no response to glabellar tap or loud auditory stimulus |
