what age do absence seizures begin?
<answer> Between ages 4 and 12 years <context> More common in children than in adults, absence seizures almost always start between ages 4 and 12 years, and rarely do they begin after age 20. Absence seizures are characterized by a brief impairment of consciousness, which usually lasts no more than a few seconds.ore common in children than in adults, absence seizures almost always start between ages 4 and 12 years, and rarely do they begin after age 20. Absence seizures are characterized by a brief impairment of consciousness, which usually lasts no more than a few seconds.