| Characteristic |
Normal EEG |
Abnormal EEG |
P ≤ † |
| No. patients |
6 |
9 |
|
| Coma duration (d) |
11 ± 10 |
58 ± 59 |
.01 |
| Time after injury (d) |
125 ± 44 |
470 ± 676 |
.01 |
| WAIS-R |
|
|
|
| TIQ |
64.2 |
66.3‡ |
NS |
| VIQ |
74.0 |
74.6 |
NS |
| PIQ |
60.6 |
63.3 |
NS |
| MMSE |
24.5 |
25.0 |
NS |
| HDS-R |
24.0 |
26.6 |
NS |
| Alpha activity peak frequency (Hz) |
10.1 ± 0.6 |
9 ± 1 |
.05 |
*N = 15 patients. Abbreviations: EEG, electroencephalography; HDS-R,
Hasegawa Dementia Scale Revised; MMSE, Mini Mental State Examination; PIQ,
Performance Intelligence Quotient; TIQ, Total Intelligence Quotient; VIQ, Verbal
Intelligence Quotient; WAIS-R, Wechsler Adult Intelligence Scale Revised
†NS, not significant (P>.05)
‡Mean for 6 patients; 3 other patients could not perform neuropsychologic tests
due to severe intelligence disturbance. |
