Comparison of study variables for FCD types I and II (n = 181)
| Variable | FCD Type I (n = 102) | FCD Type II (n = 79) | P Value |
|---|---|---|---|
| Age at surgery (mean) (yr) | 16.54 ± 10.76 | 18.11 ± 11.05 | .338 |
| Age of onset (mean) (yr) | 8.29 ± 7.88 | 7.76 ± 7.31 | .655 |
| Duration of epilepsy (mean) (%) | 9.08 ± 6.91 | 10.82 ± 7.60 | .117 |
| Women (%) | 50 (49.0%) | 40 (50.6%) | .881 |
| Multilobar distribution of FCD (%) | 21 (20.6%) | 3 (3.8%) | <.001 |
| Febrile convulsions (%) | 12 (11.9%) | 9 (11.4%) | 1.000 |
| Multiple types of seizures (%) | 31 (30.4%) | 19 (24.1%) | .403 |
| Delayed development (%) | 32 (31.4%) | 13 (16.5%) | .025 |
| Daily seizures (%) | 57 (55.9%) | 48 (60.8%) | .546 |
| Aura (%) | 18 (17.6%) | 23 (29.1%) | .076 |
| Regional ictal EEG onset pattern (%) | 40 (39.2%) | 45 (58.4%) | .024 |
| Clear-cut FCD on MRI (%) | 62 (60.8%) | 67 (84.8%) | <.001 |
| Focal FDG-PET pattern (%) | 77 ( (75.5%) | 63 (79.7%) | .592 |
| Focal ictal SPECT pattern (%) | 48 (70.6%) | 29 (72.5%) | 1.000 |
| Eloquent cortex location (%) | 21 (20.6%) | 15 (19.0%) | .852 |
| Seizure-free (%) | 57 (55.8%) | 63 (79.7%) | .008 |
| Acute postoperative seizures (%) | 38 (37.3%) | 24 (30.4%) | .348 |
| Complete resection (%) | 63 (77.8%) | 65 (90.3%) | .048 |