Prevalence of Comorbid Psychiatric Disorders in Children and Adolescents with Autism Spectrum Disorder

This review is based on an extensive literature search to determine the prevalence of comorbid psychiatric disorders in children and adolescents with autism spectrum disorder (ASD) and shows that case reports and clinic- and community-based studies are available with which to assess this prevalence. Attention-deficit/hyperactivity disorder, anxiety disorders, and mood disorders frequently present in children and adolescents with ASD. However, a valid and reliable prevalence of comorbid psychiatric disorders in children and adolescents with ASD has not been established as a result of the limited number and small sample sizes of the reported studies.