Nearly one in five epileptic patients exhibit the symptoms of attention deficient hyperactivity disorder (ADHD), say researchers at Neurological Surgery, P.C. This rate is four times higher than the rate of ADHD in the general population (approximately 4.4 percent). The study was announced on January 14, 2015, and was published online in Epilepsia, the journal of the International League Against Epilepsy.
ADHD occurs in eight to 10 percent of children and adolescents. An ADHD diagnosis is made when children have six or more hyperactivity-impulsivity symptoms, and/or six or more inattention symptoms. Some ADHD symptoms continue into adulthood in up to 66 percent of cases.