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ADHD And Autism Share Similar Traits In Kids (STUDY)

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By: By Rachael Rettner, Senior Writer
Published: 08/26/2013 07:53 AM EDT on LiveScience

Nearly one in five children with attention-deficit/hyperactivity disorder (ADHD) have traits that are common among children with autism, and having these traits appears to increase children's risk of experiencing impairments in their everyday lives, a new study suggests.

Among children in the study with ADHD, 18 percent had autistic traits, while less than 1 percent of children without ADHD had such traits.

Children with ADHD and autistic traits were more likely to get in fights, be rejected by their peers, and have problems in school and with their siblings, compared with children with ADHD who did not have the autistic profile, the researchers said in their study. [Typical Toddler Behavior, or ADHD? 10 Ways to Tell]

Those with both ADHD and autistic traits were also more likely to have other psychiatric conditions, such as disruptive behaviors, mood disorders, anxiety disorders and language disorders.

The study included 240 children with ADHD, and 227 children without the condition. Most of the children were between ages 8 and 14; parents answered questions about their child's behavior.

The researchers assessed whether children exhibited symptoms similar to those seen in children with autism, such as withdrawnness and social disability, although none of the children in the study had symptoms that were severe and frequent enough to be diagnosed with autism.

Previous studies have found that certain genetic changes are present in both children with ADHD and children with autism, suggesting the two conditions may share a common origin, according to the researchers, who were led by Amelia Kotte, an ADHD researcher at Massachusetts General Hospital in Boston.

Identifying children with ADHD who also have autistic traits may help researchers develop treatments for these particular children, according to the study. For instance, their treatment may need to have a greater focus on expanding social skills.

Because the study involved mostly white children, the findings may not apply to other ethnic groups.

The study is published today (Aug. 26) in the journal Pediatrics.

Follow Rachael Rettner @RachaelRettner. FollowLiveScience @livescience, Facebook & Google+. Original article on LiveScience.

Copyright 2013 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. ]]>

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