“A study in Spain found that around 3% of schoolchildren exhibit symptoms of both autism and attention-deficit/hyperactivity disorder (ADHD). Approximately 0.5% of children could be diagnosed with both disorders. About 33% of autistic children and 31% of those with autism symptoms that do not reach the diagnostic threshold also had ADHD. Additionally, 10% of children with ADHD also had autism. The paper was published in Autism Research.
Autism, or autism spectrum disorder (ASD), is a developmental condition characterized by challenges with social interaction, communication, and repetitive behaviors. It affects individuals differently, ranging from mild to severe, with some people displaying significant intellectual disabilities, while others may have average or above-average intelligence. Early signs of autism typically appear in childhood, often before age three, and can include delayed speech, difficulty understanding social cues, and a preference for routine.”