TY - JOUR
T1 - Relationship between IQ and Internalizing and Externalizing Symptoms in Children with Autism and Children with ADHD
AU - Mayes, Susan D.
AU - Baweja, Raman
AU - Waschbusch, Daniel A.
AU - Calhoun, Susan L.
N1 - Publisher Copyright:
© 2022 Taylor & Francis.
PY - 2022
Y1 - 2022
N2 - Introduction: Findings regarding the relationship between IQ and comorbidity in autism and ADHD are inconsistent. Methods: Mothers rated 1,436 children with autism and 1,056 with ADHD without autism (IQs 9–149, ages 2–17) on the Pediatric Behavior Scale. Results: Children with IQs < 70 (vs. ≥ 70) had less oppositional behavior, irritability, tantrums, conduct problems, generalized anxiety, and depression and more separation anxiety. Children with ADHD-Inattentive had less comorbidity than children with autism and children with ADHD-Combined. For autism, 80% had ADHD-Combined symptoms and 9% had ADHD-Inattentive symptoms. Most children with autism and with ADHD-Combined with IQs ≥ 70 had oppositional defiant disorder, as did almost half with IQs < 70. For autism, 45% with IQs ≥ 70 had generalized anxiety and 47% with IQs < 70 had separation anxiety. Conclusions: Given high rates of comorbid symptoms in autism and ADHD, clinicians should be alert to and assess for psychiatric comorbidity.
AB - Introduction: Findings regarding the relationship between IQ and comorbidity in autism and ADHD are inconsistent. Methods: Mothers rated 1,436 children with autism and 1,056 with ADHD without autism (IQs 9–149, ages 2–17) on the Pediatric Behavior Scale. Results: Children with IQs < 70 (vs. ≥ 70) had less oppositional behavior, irritability, tantrums, conduct problems, generalized anxiety, and depression and more separation anxiety. Children with ADHD-Inattentive had less comorbidity than children with autism and children with ADHD-Combined. For autism, 80% had ADHD-Combined symptoms and 9% had ADHD-Inattentive symptoms. Most children with autism and with ADHD-Combined with IQs ≥ 70 had oppositional defiant disorder, as did almost half with IQs < 70. For autism, 45% with IQs ≥ 70 had generalized anxiety and 47% with IQs < 70 had separation anxiety. Conclusions: Given high rates of comorbid symptoms in autism and ADHD, clinicians should be alert to and assess for psychiatric comorbidity.
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U2 - 10.1080/19315864.2022.2029643
DO - 10.1080/19315864.2022.2029643
M3 - Article
AN - SCOPUS:85124109256
SN - 1931-5864
VL - 15
SP - 95
EP - 110
JO - Journal of Mental Health Research in Intellectual Disabilities
JF - Journal of Mental Health Research in Intellectual Disabilities
IS - 2
ER -