Later emotional and behavioral problems associated with sleep problems in toddlers: a longitudinal study

Area of Science:

• Child Psychology
• Developmental Pediatrics
• Sleep Medicine

Background:

• Childhood sleep problems are associated with adverse health outcomes.
• Limited understanding exists regarding the temporal link between early sleep issues and later emotional/behavioral problems.

Purpose of the Study:

• To investigate the association between sleep problems in 18-month-old toddlers and concurrent/subsequent emotional and behavioral problems at age 5.
• To determine if sleep duration and nocturnal awakenings predict later behavioral outcomes.

Main Methods:

• Longitudinal population-based study using data from the Norwegian Mother and Child Cohort Study (N=32,662).
• Sleep assessed via mother-reported sleep duration and nocturnal awakenings at 18 months.
• Emotional and behavioral problems measured using the Child Behavior Checklist at 5 years, with risk ratios (RRs) calculated via negative binomial regression.

Main Results:

• Short sleep duration (≤10 hours) and frequent nocturnal awakenings (≥3 times) at 18 months significantly predicted emotional and behavioral problems at 5 years.
• Adjusted RRs for internalizing problems were 1.59 for short sleep and 1.57 for awakenings; for externalizing problems, RRs were 1.77 and 1.25, respectively.
• Associations remained significant after controlling for baseline emotional/behavioral problems and other covariates.

Conclusions:

• Early childhood sleep problems are significant predictors of later emotional and behavioral problems.
• Findings suggest that interventions targeting early childhood sleep may help prevent adverse developmental outcomes.
• Further intervention studies are warranted to confirm the efficacy of sleep programs in mitigating later problems.