Co-occurring mental health problems in adolescents with ADHD and sleep problems

Abstract

Objective: sleep problems are highly prevalent and impairing in adolescents with ADHD. However, their relation with co-occurring mental health problems is still unclear. This study assessed whether adolescents with ADHD, with and without self-reported sleep problems, differ from each other in co-occurring mental health problems, and whether they differ from adolescents without ADHD. Furthermore, we examined whether the adolescents with ADHD and self-reported sleep problems do indeed have more disturbed sleep than the other two groups and lastly, whether these sleep differences are moderated by co-occurring mental health problems.

Method: three groups of adolescents (13-17 years): 1) with ADHD and comorbid self-reported sleep problems (N = 56), 2) with ADHD but without self-reported sleep problems (N = 25), and 3) without ADHD (N = 56) were assessed. Group comparisons were done for symptoms of co-occurring mental health problems, self- and parent-reported sleep problems, and objective and subjective sleep parameters. Exploratively, moderating effects of co-occurring mental health problems on sleep differences between groups are examined.

Results: compared to those without self-reported sleep problems, adolescents with ADHD and comorbid self-reported sleep problems experienced significantly more co-occurring symptoms of mental health problems, especially depression. They also scored higher on all sleep problems, and had a longer sleep onset latency and lower sleep efficiency based on subjective and objective sleep measures. Depression and anxiety moderated objectively measured sleep differences.

Conclusion: co-occurring mental health problems, especially depressive symptoms, are more prevalent in adolescents with ADHD and sleep problems and partially moderate the relation with sleep. This indicates that when adolescents with ADHD present with sleep problems in clinical practice, it is essential to also assess symptoms and other mental health problems and vice-versa.

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ORCID for Samuele Cortese: orcid.org/0000-0001-5877-8075

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