Explosive, oppositional, and aggressive behavior in children with autism compared to other clinical disorders and typical children
Highlights
► Behavior problems are common in autism, ADHD-Combined type, and depression. ► Children with ADHD-Inattentive type, anxiety, and brain injury do not differ from controls. ► Behavior problems are associated with male gender and low SES but not IQ and age. ► Our findings have implications for new DSM-V diagnostic categories and criteria.
Section snippets
Comorbidity in autism
Comorbidity is common in autism, and children with autism are at high risk for a variety of problems in addition to the symptoms of autism specified by the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV, American Psychiatric Association, 2000). In comparison to the norm, children with autism have significantly more opposition and aggression (Brereton et al., 2006, Gadow et al., 2005), oppositional-defiant disorder (ODD) symptoms (Guttmann-Steinmetz, Gadow, & DeVincent, 2009),
Purpose
Comorbid psychiatric disorders in individuals with autism are difficult to diagnose and are often unrecognized clinically (Leyfer et al., 2006). Much remains to be learned about comorbidity in autism (Brereton et al., 2006, Leyfer et al., 2006, Matson and Nebel-Schwalm, 2007, Sukhodolsky et al., 2008), particularly understanding the impact of comorbid behavior problems in the phenomenology, treatment, and natural history of autism (Gadow, DeVincent, & Schneider, 2008). Our study is the first to
Sample
The sample of 1609 children 6–16 years of age consists of 302 children with high functioning autism (HFA, IQ ≥ 80), 133 children with low functioning autism (LFA, IQ < 80), 186 typical children, and 988 children with other clinical disorders including ADHD-Combined type (ADHD-C), ADHD-Inattentive type (ADHD-I), anxiety disorders, depression, and acquired brain injury (e.g., closed head injury, brain tumor, or hydrocephalus). IQ tests administered were the Wechsler Intelligence Scale for
Behavior problem scores
Behavior problem scores did not differ significantly between LFA and HFA, ADHD with versus without an IQ < 80, and depression with versus without anxiety (Bonferroni p > .89), so these subgroup pairs were collapsed for the statistical analyses. As shown in Table 2, mean total behavior problem scores were more than one standard deviation above the typical children's mean for children with autism, ADHD-C, and depression. Children with anxiety alone, ADHD-I, and brain injury earned mean scores within
Discussion
Our study is the first to compare behavior problems in a large sample of children with high and low functioning autism, children who have a variety of other clinical disorders, and typical children, yielding some very interesting results that increase our understanding of autism and have implications for the DSM.
Acknowledgements
We wish to thank Autism Speaks (Grant #2529) and the Children's Miracle Network for their support of this study.
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2020, Research in Autism Spectrum DisordersCitation Excerpt :While little known about hoarding in autism (Storch et al., 2016), there is some evidence that hoarding severity is worse in females compared to males on the autism spectrum (La Buissonnière-Ariza et al., 2018); thus, even with equivalent levels of Thought Problems, females might be more likely than males to engage in hoarding-type behavior. Additionally, males are more likely to engage in more outward forms of aggressive behavior than females in neurotypical (Card, Stucky, Sawalani, & Little, 2008) and autism samples (Mayes et al., 2012), so aggression may be more likely to manifest as mood-related symptoms (e.g., sullen, irritable) rather than outward symptoms for females with autism. Finally, the gender-DIF on the obsession item is difficult to interpret.
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2020, Psychiatry ResearchCitation Excerpt :In a study by Mayes et al. (2012a), children with autism and children with ADHD did not differ significantly on a computerized attention test and on maternal ratings of ADHD. Children with ADHD-Combined presentation (ADHD-C) and autism both have high rates of irritable, oppositional, and aggressive behavior (Connor et al., 2010; Mayes et al., 2011; MTA, 1999), which is not the case for children with ADHD-Inattentive presentation (ADHD-I; Mayes et al., 2012b, 2015). Despite similar symptoms that are a common treatment target for ADHD-C and autism, prescribing practices may differ for these two groups, which is potentially problematic if shared symptoms are effectively treated in one diagnostic group but not in the other.
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