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Predictors of shorter sleep in early childhood

Laura McDonald1, Jane Wardle1, Clare H Llewellyn1

  • 1Health Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, Gower Street, London WC1E 6BT, UK.

Sleep Medicine
|April 15, 2014
PubMed

Insights

Shorter sleep in young children is linked to factors like maternal education and evening TV. Later bedtimes primarily explain these associations, highlighting the importance of consistent sleep schedules for child health.

Area of Science:

  • Child Health
  • Sleep Science
  • Developmental Pediatrics

Background:

  • Sleep duration in early childhood is crucial for development and well-being.
  • Socio-demographic and environmental factors may influence infant sleep patterns.
  • Understanding these influences can inform interventions to promote healthy sleep.

Purpose of the Study:

  • To identify socio-demographic and home environmental predictors of shorter sleep duration in early childhood.
  • To investigate whether bedtime and wake time mediate the relationship between predictors and sleep duration.
  • To inform strategies for improving sleep health in young children.

Main Methods:

  • Utilized data from the Gemini birth cohort study, including 1702 children.
  • Assessed night-time sleep duration using a modified Brief Infant Sleep Questionnaire at approximately 15.8 months of age.
  • Employed multiple logistic regression and mediation analyses to identify predictors and their mechanisms.

Main Results:

  • 14.1% of children experienced shorter sleep (<11 hours/night).
  • Independent predictors of shorter sleep included lower maternal education, non-white ethnicity, male sex, low birth weight, more older siblings, and >1 hour of evening TV.
  • Mediation analyses indicated later bedtimes primarily explained links between education, ethnicity, TV viewing, and sleep; earlier wake times explained sex differences.

Conclusions:

  • Multiple environmental factors significantly predict shorter sleep in young children.
  • Later bedtimes are a key pathway through which several factors influence sleep duration.
  • Promoting early and consistent bedtimes may be vital for enhancing child sleep and reducing health disparities.
Abstract

Keywords:
BedtimeBehaviourChildPredictorsSleepWake time

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