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Autism Spectrum Disorders: Concurrent Clinical Disorders
Xue Ming, MD, PhD*,
Michael Brimacombe, PhD,
Barbie Zimmerman-Bier, MD,
Janti Chaaban, MD,
and
George C. Wagner, PhD
* To whom correspondence should be addressed. E-mail: mingxu{at}umdnj.edu.
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Abstract |
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Individuals with autism spectrum disorder are heterogeneous in clinical presentation, concurrent disorders, and developmental outcomes. This study characterized the clinical co-occurrences and potential subgroups in 160 children with autism spectrum disorders who presented to The Autism Center between 1999 and 2003. Medical and psychiatric co-occurrences included sleep disorders, epilepsy, food intolerance, gastrointestinal dysfunction, mood disorder, and aggressive and self-injurious behaviors. Sleep disorders were associated with gastrointestinal dysfunction (P <.05) and mood disorders (P <.01). Food intolerance was associated with gastrointestinal dysfunction (P = .001). Subjects with mood disorder tended to develop aggressive or self-injurious behaviors (P <.05). Developmental regression was not associated with increased co-occurrence of medical or psychiatric disorders. Medical co-occurrence did not present as a risk factor for psychiatric co-occurrence, and vice versa. These results showed a high prevalence of multiple medical and psychiatric co-occurrences. There may be common pathophysiologic mechanisms resulting in clinical subgroups of autism spectrum disorders. Recognition of the co-occurrence of concurrent disorders may provide insight into the therapeutic strategy.
First published on December 3, 2007, doi:10.1177/0883073807307102
Journal of Child Neurology 2008;23:6.
A more recent version of this article appeared on January 1, 2008

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[Abstract]
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