Sleep problems predict and are predicted by generalized anxiety/depression and oppositional defiant disorder

Area of Science:

• Child and Adolescent Psychiatry
• Developmental Psychology
• Sleep Medicine

Background:

• Sleep problems are prevalent in children and adolescents.
• The bidirectional relationship between sleep problems and psychiatric disorders requires further investigation.

Purpose of the Study:

• To examine the co-occurrence, predictive, and consequential relationships between sleep problems and common psychiatric disorders in youth.
• To clarify the role of comorbidity and specificity in these associations.

Main Methods:

• Longitudinal population-based study (Great Smoky Mountains Study) with 1,420 children.
• Repeated assessments (4-7 times) between ages 9-16 for psychiatric disorders (DSM-IV) and sleep problems.
• Exclusion of sleep-related symptoms from diagnostic criteria where applicable.

Main Results:

• Sleep problems were common, with restless sleep and difficulty falling asleep being most frequent.
• Cross-sectional data showed co-occurrence of sleep problems with multiple psychiatric disorders.
• Longitudinal data indicated sleep problems predicted later generalized anxiety disorder (GAD), high GAD/depression symptoms, and oppositional defiant disorder (ODD).
• Conversely, GAD/depression and ODD predicted subsequent increases in sleep problems.

Conclusions:

• Sleep problems exhibit a bidirectional relationship with a cluster of disorders including ODD, GAD, and depression.
• Early screening for sleep problems in children may offer a pathway to mitigate mental illness burden.
• Findings highlight the importance of addressing sleep disturbances in pediatric mental health.