epilepsy developed by age 14 years in ( a ) one-half of children with ns , ( b ) approximately 2 % children with fcs , ( c ) 0.2 % of healthy children with no seizure before age 3 years , and ( d ) an estimated 2 % of potential epileptic carriers ( having spike eeg abnormality by age 3 ; 15 % of the population ) who had not had a seizure by age 3 years .
C0014544
epilepsy
C0036572
seizure