Prevalence of current comorbid DSM-IV disorders was assessed in a special school population of children and adolescents with ASD (N = 71, age 6.0–17.9 years), representing all cognitive levels and main ASD subgroups. Symptoms were assessed through parent interview and association to child characteristics was explored. Seventy-two percent was diagnosed with at least one comorbid disorder. Anxiety disorders (41%) and attention deficit/hyperactivity disorder (31%) were most prevalent. Obsessive–compulsive disorder was more common in older children, and oppositional defiant disorder/conduct disorder more prevalent in pervasive developmental disorder, not otherwise specified. Our results show high rates of comorbid DSM-IV disorders and underscore the importance of such evaluation in children ASD. However, diagnostic challenges are present and future research on the diagnostic validity of comorbid psychiatric disorders is needed.
This study compared social, executive, emotional, and behavioral characteristics of students with autism spectrum disorder who did and did not display school refusal behavior. The participants were 62 students with autism spectrum disorder without intellectual disability aged 9-16 years attending inclusive schools. Parents first completed questionnaires assessing social and executive functioning as well as emotional and behavioral problems. They then documented their child's school refusal behavior for a period of 20 days. Compared to students without school refusal behavior (n = 29), students with school refusal behavior (n = 33) were significantly less socially motivated; displayed more deficits in initiating tasks or activities, in generating ideas, responses, or problem-solving strategies; and displayed more withdrawn and depressive symptoms. Assessing social and executive functioning, as well as emotional problems, may help professionals provide tailored interventions for students with autism spectrum disorder and school refusal behavior, which will further be valuable in recognizing characteristics associated with school refusal behavior.
Seven out of 14 boys with high-functioning ASD and comorbid AD/HD showed significant reductions in AD/HD symptoms and were classified as responders to atomoxetine. Most children tolerated the drug well.
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