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Severe sleep problems in infancy associated with subsequent development of attention-deficit/hyperactivity disorder
1Department of Women's and Children's Health, Children's University Hospital, Uppsala, Sweden. malena.thunstrom@ped.uas.lul.se
Insights
Severe infant sleep problems may predict attention-deficit/hyperactivity disorder (ADHD) in children. Infants with sleep issues, especially with family psychosocial problems, face higher ADHD risks, warranting early attention for potential neurodevelopmental concerns.
Area of Science:
- Developmental Psychology
- Pediatric Sleep Medicine
- Neurodevelopmental Disorders
Background:
- Sleep disturbances are common in infancy.
- Early life factors can influence neurodevelopment.
- Attention-deficit/hyperactivity disorder (ADHD) has a significant impact on child development.
Purpose of the Study:
- To prospectively investigate the link between severe infant sleep problems and the later development of ADHD symptoms.
- To identify early childhood risk factors in infants with sleep issues that predict ADHD diagnosis.
- To compare developmental trajectories of children with and without severe infant sleep problems.
Main Methods:
- A five-year prospective study comparing a group of infants with severe sleep problems to a matched control group.
- Initial screening of 2518 infants (6-18 months) via questionnaire, with a case group (n=27) selected based on severe, chronic sleep issues.
- In-depth multidisciplinary assessment at 5.5 years to diagnose ADHD based on established criteria.
Main Results:
- Seven out of 27 children (approximately 26%) with severe infant sleep problems met the criteria for ADHD at age 5.5 years.
- None of the control group children were diagnosed with ADHD, a statistically significant difference.
- Infant factors associated with later ADHD diagnosis included family psychosocial problems, bedtime struggles, and prolonged sleep latency.
Conclusions:
- Severe sleep problems in infancy are associated with a significantly higher risk of developing ADHD later in childhood.
- Infants experiencing severe sleep issues, particularly when combined with behavioral challenges and family psychosocial difficulties, require close monitoring for neurodevelopmental disorders like ADHD.
Unlabelled:
The aim of this five-year prospective study was to follow and compare a group of children with severe sleep problems in infancy with a control group regarding development of symptoms of attention-deficit/hyperactivity disorder (ADHD). Factors in infancy were sought which were associated with development of ADHD in later childhood. A total community sample of 2518 infants aged 6-18 mo was approached with a questionnaire, and 83% responded. Data from the collection procedure point to a non-selective dropout. A case group of those children aged 6-12 mo who fulfilled specific criteria for severe and chronic sleep problems (n = 27) was compared with a control group of equal size, matched for age and gender. At the age of 5.5 y, seven of the children in the sleep problem group met the criteria for the diagnosis of ADHD based on an in-depth assessment by a multidisciplinary team. None of the control children qualified for the diagnosis. This difference is statistically significant. Comparisons between the children with ADHD and the rest of the problem group showed that given severe infant sleep problems, the following characteristics in infancy were associated with subsequent diagnosis of ADHD: psychosocial problems in the family, bedtime struggles and long sleep latency at bedtime. Owing to the small sample size, the results are considered preliminary.
Conclusion:
Approximately one in four children with severe sleep problems in infancy will later qualify for the diagnosis of ADHD. Infants with severe sleep problems, especially in combination with behavioural problems, high activity level and psychosocial problems in the family, deserve attention since neurodevelopmental problems seem to be prevalent in this category of children.