Table 1.

Demographic data of patients with hemispherectomy

Total number of patients (N)	19
Sex, male/female (N)	8/11
Age at seizure onset, year, mean ± SD	1.2 ± 1.7
Age at surgery, year, mean ± SD	6.4 ± 4.7
Seizure duration, year, mean ± SD	5.32 ± 4.5
Number of seizures, per week, mean ± SD	28.0 ± 27.6
Epilepsy surgery prior to hemispherectomy (N)
None	14
Lobectomy/topectomy ± corpus callosotomy	4
Corpus callosotomy only	1

N number of patients