Abstract
Objective
So far, little is known about potential links between subtypes of attention deficit hyperactivity disorder (ADHD) and sleep disturbances in childhood. Therefore, this study examined the association between sleep disorders and all three subtypes of ADHD.
Methods
A total of 60 children showing attention deficit symptoms (aged 6–13 years; 88.3% boys) were diagnosed with regard to ADHD according to the DSM-IV-TR. The subtypes of ADHD diagnosed were then related to potential sleep disturbances as measured using a standardized parent-rated questionnaire (Children’s Sleep Habits Questionnaire, CSHQ-DE).
Results
Clinically significant elevated scores in the CSHQ-DE’s Sleep Disturbance Scale were exhibited in all 60 children. Parents of the children with primarily hyperactive–impulsive subtype reported the highest scores. Children with this subtype displayed the highest rate of specific sleep disorders, e.g., increased daytime sleepiness and higher bedtime resistance.
Conclusion
The assumption that children with ADHD show elevated scores of sleep disturbances was verified. In addition, it was possible to identify a unique pattern of sleep disturbances corresponding to the respective ADHD subtypes.
Zusammenfassung
Ziel
Bisher gibt es wenig gesichertes Wissen über den Zusammenhang der Subtypen der Aufmerksamkeitsdefizit-Hyperaktivitäts-Störung (ADHS) und Schlafstörungen in der Kindheit. Daher wird in dieser Studie der Zusammenhang von Schlafstörungen und allen 3 Subtypen der ADHS untersucht.
Methode
Bei insgesamt 60 Kindern (6–13 Jahre; 88,3% Jungen) wurde entsprechend DSM-IV-TR die Diagnose einer ADHS gestellt. Die diagnostizierten Subtypen der ADHS wurden in Verbindung gesetzt mit potenziellen Schlafstörungen im Kindesalter – gemessen mit einem standardisierten Elternfragebogen (Children’s Sleep Habits Questionnaire, CSHQ-DE).
Ergebnisse
In der Gesamtstichprobe aller Kinder zeigten sich klinisch signifikant erhöhte Werte in der Gesamtskala des CSHQ-DE. Eltern von Kindern mit ADHS vom hyperaktiv-impulsiven Subtyp berichteten über die höchsten Werte. Diese Kinder zeigten auch die höchste Rate an spezifischen Schlafstörungen, wie z. B. erhöhte Tagesschläfrigkeit sowie stärkere Widerstände, zu Bett zu gehen.
Schlussfolgerung
Die Annahme, dass Kinder mit ADHS verstärkt Schlafstörungen aufweisen, wurde bestätigt. Darüber hinaus war es möglich, ein spezifisches Muster an Schlafschwierigkeiten entsprechend dem jeweiligen ADHS-Subtyp zu identifizieren.
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Acknowledgment
The authors would like to thank the children and parents for their participation and cooperation.
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On behalf of all authors, the corresponding author states that there are no conflicts of interest.
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Wagner, J., Schlarb, A. Subtypes of ADHD and their association with sleep disturbances in children. Somnologie 16, 118–124 (2012). https://doi.org/10.1007/s11818-012-0569-6
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DOI: https://doi.org/10.1007/s11818-012-0569-6