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Chronotype preference matters for depression in youth.

Wen-Hsuan Chiu1, Hao-Jan Yang2,3, Po-Hsiu Kuo1,4

  • 1a National Taiwan University, Department of Public Health & Institute of Epidemiology and Preventive Medicine , College of Public Health , Taipei , Taiwan.

Chronobiology International
|June 15, 2017
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Summary

Eveningness chronotype in children is linked to depression, with poor sleep quality partially explaining this connection. This highlights the importance of circadian rhythms in youth mental health.

Keywords:
Depressionmorningness/eveningnesssleep qualityyouth

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Area of Science:

  • Circadian Biology
  • Developmental Psychology
  • Child and Adolescent Psychiatry

Background:

  • Morningness/eveningness (M/E) chronotype, a measure of circadian rhythm preference, varies significantly among individuals.
  • While M/E chronotype is linked to depression in adults, its relationship with depression in children and adolescents requires further investigation.
  • Poor sleep quality is a recognized risk factor for depression.

Purpose of the Study:

  • To examine the independent impact of M/E chronotype on youth depression.
  • To assess the potential mediating or moderating role of poor sleep quality in the M/E chronotype-depression relationship.
  • To utilize both self-report and parental-report measures for a comprehensive evaluation.

Main Methods:

  • A cross-sectional study involving 2,139 students (grades 1-7) and 1,708 parents.
  • Participants completed questionnaires on M/E chronotype, depression symptoms, and sleep quality.
  • Parental reports assessed children's emotional and behavioral problems.

Main Results:

  • The prevalence of depression was 16.8% (self-report) and 12.8% (parent-report).
  • Eveningness chronotype was independently associated with self-reported depression (OR = 1.86).
  • Poor sleep quality mediated the effect of M/E chronotype on depression in 7-13 year olds.

Conclusions:

  • M/E chronotype is a significant factor associated with depression in youth.
  • Poor sleep quality plays a partial mediating role in the relationship between eveningness chronotype and depression.
  • These findings underscore the clinical relevance of circadian rhythms and sleep in pediatric mental health.