Benign Epilepsy of Children with Centrotemporal EEG Foci. A Study of Incidence Rate in Outpatient Care

Abstract
The incidence rates of epileptic seizures and epileptic seizures with centrotemporal (Rolandic) discharges were 134/100,000 and 21/100,000, respectively. These were determined in an epidemiological study in a population consisting of 52,252 children aged 0-15 yr in a county in the northern part of Sweden. Epileptic seizures with Rolandic discharges represented about 16% of all the epileptic seizures (febrile convulsions not included). They were 4 times more common than classic petit mal with 3/s spike-and-wave activity.