Sleep disturbance in children with attention-deficit hyperactivity disorder: relationship with melatonin and behavior
Ana Luiza Decanini Miranda de Souza1,2, Célia Maria Giacheti1, Maria Clara Helena Do Couto1
1Department of Speech, Language and Hearing Sciences, São Paulo State University (UNESP), Marília, Brazil.
Insights
Children with Attention-Deficit Hyperactivity Disorder (ADHD) experience more sleep problems, which are linked to lower melatonin levels and behavioral difficulties. Sleep disturbances in ADHD are associated with melatonin and behavior issues.
Area of Science:
- Neuroscience
- Pediatrics
- Sleep Medicine
Background:
- Attention-Deficit Hyperactivity Disorder (ADHD) is frequently associated with sleep disturbances.
- The relationship between sleep problems, melatonin levels, and behavior in children with ADHD requires further investigation.
Purpose of the Study:
- To investigate the prevalence and types of sleep problems in children with ADHD.
- To examine the correlation between sleep issues, melatonin levels, and behavioral characteristics in ADHD.
- To compare sleep patterns and melatonin content between children with ADHD and typically developing children.
Main Methods:
- Sleep assessment using the Sleep Disorders Scale for Children (SDSC) and actigraphy in children aged 6-14.
- Salivary melatonin levels quantified by ELISA.
- Behavioral analysis using the Strengths and Difficulties Questionnaire.
Main Results:
- Children with ADHD exhibited a higher frequency of sleep disturbances, longer sleep latency, and reduced sleep efficiency compared to typically developing peers.
- The ADHD group showed lower nocturnal melatonin levels.
- Disorders of Initiating and Maintaining Sleep (DIMS) were moderately associated with nocturnal melatonin levels.
- Behavioral difficulties correlated with various sleep disorder types and the total SDSC score, with behavior being the primary determinant of the total SDSC score.
Conclusions:
- This study is the first to demonstrate an association between sleep-initiation and maintenance disorders and reduced melatonin levels in children with ADHD.
- Sleep disturbances in ADHD are linked to behavioral problems, highlighting the complex interplay between sleep, melatonin, and behavior in this population.
Aim:
To evaluate the prevalence and types of sleep problems and their correlations with melatonin content and behavior in Attention-Deficit Hyperactivity Disorder (ADHD) children.
Method:
Sleep in ADHD children and typically developing children (TD) aged 6-14 was assessed by the Sleep Disorders Scale for Children (SDSC) and actigraphy, salivary melatonin quantified by ELISA, and behavior was analyzed using the Strengths and Difficulties Questionnaire.
Results:
ADHD children showed a higher frequency of sleep disturbances, higher sleep latency, and lower sleep efficiency than in the TD group. The ADHD group presented lower melatonin nocturnal content compared to the TD group. Disorders of Initiating and Maintaining Sleep (DIMS) was moderately associated with nocturnal melatonin. The total behavior difficulties were correlated with Disorders of Initiating and Maintaining Sleep (DIMS), Sleep/Wake Transition Disorders (SWTD), Disorders of Excessive Somnolence (DES), Sleep Hyperhidrosis (SHY) and Total SDSC Score. The behavior was the only determinant of the total SDSC score (R2 = 0.499; p < 0.002).
Conclusion:
This study provides, for the first time, evidence that among the frequent sleep disturbances in ADHD, the disorders in initiating and maintaining sleep are associated with the low levels of melatonin found in this population. Additionally, these, along with other sleep disturbances, are linked to behavioral problems in ADHD.
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