ADHD subtypes and comorbid anxiety, depression, and oppositional-defiant disorder: differences in sleep problems
- PMID: 18676503
- PMCID: PMC2722128
- DOI: 10.1093/jpepsy/jsn083
ADHD subtypes and comorbid anxiety, depression, and oppositional-defiant disorder: differences in sleep problems
Abstract
Objective: Sleep problems were analyzed in children with ADHD (Attention-deficit hyperactivity disorder).
Methods: Scales were completed by parents of 135 control children and 681 children with ADHD combined type (ADHD-C) or inattentive type (ADHD-I) with or without comorbid oppositional defiant disorder (ODD), anxiety, or depression.
Results: Children with ADHD-I alone had the fewest sleep problems and did not differ from controls. Children with ADHD-C had more sleep problems than controls and children with ADHD-I. Comorbid anxiety/depression increased sleep problems, whereas ODD did not. Daytime sleepiness was greatest in ADHD-I and was associated with sleeping more (not less) than normal. Medicated children had greater difficulty falling asleep than unmedicated children.
Conclusions: Differences in sleep problems were found as a function of ADHD subtype, comorbidity, and medication.
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