Examining the Relation Between Sleep Problems and Behavioural Challenges in Youth With Down Syndrome

Area of Science:

• Neurodevelopmental disorders
• Sleep medicine
• Behavioral science

Background:

• Sleep problems are common in Down syndrome (DS) and linked to behavioral challenges.
• Previous research often relied on daily assessments, leaving uncertainty about the sleep-behavior association.
• This study investigated sleep-behavior relationships at both long-term (macro) and daily (micro) levels in youth with DS.

Purpose of the Study:

• To examine the relationship between sleep problems and behavioral challenges in youth with Down syndrome.
• To differentiate between overall (chronic) and daily (micro) associations.
• To provide a nuanced understanding of sleep's impact on behavior in this population.

Main Methods:

• 65 youth with DS (aged 6-17) participated.
• Sleep was assessed using the Children's Sleep Habits Questionnaire (CSHQ) and actigraphy (measuring efficiency, duration, wake after sleep onset).
• Behavioral challenges were measured using the Child Behavior Checklist (CBCL) and the Scales of Independent Behavior, Revised (SIB-R).

Main Results:

• Chronic sleep problems significantly correlated with externalizing and internalizing behaviors (measured by CSHQ and CBCL), even after controlling for IQ and SIB-R.
• No significant daily correlations were found between actigraphy-measured sleep and behavior (SIB-R) over seven days.
• This suggests that long-term sleep patterns, not nightly variations, are associated with behavioral challenges in youth with DS.

Conclusions:

• The sleep-behavior relationship in Down syndrome is complex.
• Chronic sleep issues are linked to enduring behavioral challenges.
• Short-term, nightly sleep variations do not appear to predict immediate behavioral changes in youth with DS.