Table 1: Patient demographics and preoperative evaluation.

SelAH ATL value

Gender (%female) 57 53 0.76
Age at first seizure (Yr) 16.1 13.9 0.52
Age at surgery (Yr) 36 41.9 0.03
History of febrile seizures (%) 6 (29%) 39 (52%) 0.06
Freq. of seizures at time of surgery (per month) 8 9.7 0.40
On multiple AEDs (%) 19 (90%) 62 (83%) 0.60
Initial EEG lateralizing (%) 13 (60%) 45 (60%) 0.99
Contralateral ictal propagation in EMU (%) 3 (14%) 12 (16%) 0.85
Bilateral interictal abnormalities in EMU (%) 3 (14%) 21 (28%) 0.20
Invasive recording needed (%) 1 (5%) 18 (24%) 0.05

values < 0.05 were considered significant.
AED: Antiepileptic drug; EMU: Epilepsy Monitoring Unit.