Clinical and Cognitive Features of Attention Deficit Hyperactivity Disorder with Intellectual Giftedness: A Systematic Review.

A systematic review was carried out on publications from the last 15 years that have studied the effect of intellectual giftedness, defined as IQ > 115, on the clinical and cognitive features of ADHD. Studies indicate that about 15% of people with high IQ meet ADHD criteria. IQ has shown no effect on the pharmacological treatment, and comorbidity does not differ from that of other children with ADHD.