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Published on: August 8, 2019
Contributions of circadian tendencies and behavioral problems to sleep onset problems of children with ADHD
Reut Gruber1, Laura Fontil, Lana Bergmame
1McGill University, Montreal, QC, Canada. reut.gruber@douglas.mcgill.ca
Insights
Children with attention-deficit/hyperactivity disorder (ADHD) experience more sleep onset problems. Externalizing behaviors and evening circadian tendencies contribute to these issues, independent of ADHD diagnosis.
Area of Science:
- Pediatric Sleep Medicine
- Neurodevelopmental Disorders
- Behavioral Psychology
Background:
- Children with attention-deficit/hyperactivity disorder (ADHD) exhibit a 2-3 fold increased risk for sleep disturbances.
- Sleep onset problems are a common complaint among children diagnosed with ADHD.
Purpose of the Study:
- To differentiate the contributions of circadian preferences and behavioral issues to sleep onset difficulties in children with ADHD.
- To investigate if ADHD diagnosis moderates the relationship between circadian preferences, externalizing behaviors, and sleep onset problems.
Main Methods:
- Utilized sleep logs and questionnaires for parental reports on bedtime routines and sleep.
- Employed ambulatory polysomnography (PSG) for objective sleep architecture assessment.
- Included 75 children aged 7-11 years, with 26 diagnosed with ADHD and 49 as controls.
Main Results:
- Externalizing problems significantly predicted bedtime resistance in both ADHD and control groups.
- An evening circadian preference was associated with sleep onset delay and longer sleep-onset latency.
- No significant interaction was found between ADHD status and the influence of behavioral or circadian factors on sleep onset.
Conclusions:
- Sleep onset problems in children with ADHD stem from diverse causes requiring tailored interventions.
- Parental reports, specifically the CSHQ, can help distinguish these varied etiologies.
Background:
Children with attention-deficit/hyperactivity disorder (ADHD) are two to three times more likely to experience sleep problems. The purpose of this study is to determine the relative contributions of circadian preferences and behavioral problems to sleep onset problems experienced by children with ADHD and to test for a moderation effect of ADHD diagnosis on the impact of circadian preferences and externalizing problems on sleep onset problems.
Methods:
After initial screening, parents of children meeting inclusion criteria documented child bedtime over 4 nights, using a sleep log, and completed questionnaires regarding sleep, ADHD and demographics to assess bedtime routine prior to PSG. On the fifth night of the study, sleep was recorded via ambulatory assessment of sleep architecture in the child's natural sleep environment employing portable polysomnography equipment. Seventy-five children (26 with ADHD and 49 controls) aged 7-11 years (mean age 8.61 years, SD 1.27 years) participated in the present study.
Results:
In both groups of children, externalizing problems yielded significant independent contributions to the explained variance in parental reports of bedtime resistance, whereas an evening circadian tendency contributed both to parental reports of sleep onset delay and to PSG-measured sleep-onset latency. No significant interaction effect of behavioral/circadian tendency with ADHD status was evident.
Conclusions:
Sleep onset problems in ADHD are related to different etiologies that might require different interventional strategies and can be distinguished using the parental reports on the CSHQ.
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