Characterizing Sleep Problems in 16p11.2 Deletion and Duplication

Area of Science:

• Genetics
• Neurodevelopmental Disorders
• Sleep Medicine

Background:

• 16p11.2 copy number variants (CNVs) are linked to neurodevelopmental disorders.
• Phenotypes associated with 16p11.2 deletions and duplications are under investigation.
• Sleep disturbances in individuals with 16p11.2 CNVs are not well-characterized.

Purpose of the Study:

• To investigate the prevalence and nature of sleep disturbances in individuals with 16p11.2 CNVs.
• To compare sleep disturbance levels between 16p11.2 carriers and community controls.
• To examine sleep patterns in both youth and adult carriers.

Main Methods:

• Utilized data from the Simons Foundation Autism Research Initiative (SFARI) database.
• Analyzed a national sample of 692 individuals with 16p11.2 CNVs (345 youth, 347 adults).
• Employed factor analyses and multilevel models on derived sleep questionnaires.

Main Results:

• 16p11.2 carriers exhibited significantly elevated sleep disturbance compared to community controls.
• Non-carrier family members also demonstrated increased sleep disturbance.
• No significant differences in sleep duration were found between carriers and controls.

Conclusions:

• Sleep disturbances are a notable feature in individuals with 16p11.2 CNVs.
• The findings suggest potential familial or environmental factors contributing to sleep issues.
• Further research is necessary to fully understand and address sleep problems in this population.