Table 2.
Electrographic seizure characteristics by center (N=550).
| Center | Subjects with Electrographic Seizures (including electrographic status epilepticus) |
Subjects with Electrographic Status Epilepticus | Electrographic Seizure Characteristics by Subject | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clinical Correlate (N=157) | Duration (N=158) | Seizure Maximal Distribution (N=161) | ||||||||||
| All (100%) | Most (50-99%) | Some (1-49%) | None (0%) | <1min | 1-5mins | 6-30mins | >30mins | Focal-Unilateral | Bilateral | |||
| 1 | 21* | 6 | 9 | 3 | 1 | 8 | 12 | 5 | 3 | 1 | 5 | 15 |
| 2 | 8 | 3 | 1 | 3 | 0 | 3 | 0 | 4 | 2 | 0 | 7 | 0 |
| 3 | 13 | 7 | 1 | 3 | 5 | 4 | 7 | 5 | 1 | 0 | 2 | 11 |
| 4 | 17 | 5 | 6 | 5 | 1 | 5 | 9 | 4 | 2 | 2 | 8 | 9 |
| 5 | 16 | 3 | 1 | 2 | 7 | 6 | 3 | 10 | 3 | 0 | 11 | 5 |
| 6 | 13 | 7 | 7 | 2 | 2 | 1 | 6 | 3 | 1 | 2 | 4 | 9 |
| 7 | 16 | 10 | 2 | 0 | 6 | 8 | 3 | 6 | 6 | 1 | 11 | 5 |
| 8 | 16 | 5 | 2 | 2 | 2 | 9 | 5 | 5 | 2 | 3 | 10 | 6 |
| 9 | 12 | 6 | 3 | 0 | 6 | 3 | 3 | 8 | 1 | 0 | 10 | 6 |
| 10 | 15 | 5 | 5 | 1 | 1 | 8 | 4 | 7 | 3 | 1 | 11 | 4 |
| 11 | 15 | 4 | 6 | 1 | 2 | 4 | 8 | 6 | 1 | 0 | 6 | 6 |
| Overall N (%) |
162 (29%) | 61 (11%) | 43 (27%) | 22 (14%) | 33 (21%) | 59 (38%) | 60 (38%) | 63 (40%) | 25 (16%) | 10 (6%) | 85 (53%) | 76 (47%) |
| p-value | 0.41 | 0.6 | 0.003 | 0.095 | 0.086 | 0.002 | ||||||
*
Note: Cells values represent the number of subjects. For example, 21 of 50 subjects (42%) from Center 1 had electrographic seizures.