Associations between sleep habits, quality, chronotype and depression in a large cross-sectional sample of Swedish adolescents

Theresa Lemke, Sebastian Hökby, Danuta Wasserman, Vladimir Carli and Gergö Hadlaczky

PLOS ONE, 2023, vol. 18, issue 11, 1-24

Abstract: Objective: To investigate behavioral sleep habits, self-perceived quality of sleep, and chronotype, and to examine their association with clinically relevant levels of depression in Swedish adolescents. Method: Questionnaire data were obtained from a representative sample of Swedish adolescents (n = 8449; 50.8% girls; aged 12–16). Depression was defined as >13 BDI-II scores. Logistic regression modelling estimated the effects of sleep duration, sleep quality, and chronotype on depression, adjusted for socio-demographic factors. Results: On weekdays, approximately 46% of adolescents slept less than the recommended length of eight hours per night (depressed: 68%, non-depressed: 40%). On weekends, however, only 17% slept shorter than recommended. Short weekday sleep duration was more common among girls than boys (53% vs. 38%) and girls reported worse sleep quality. The regression model showed that depression was predicted by weekday sleep duration (OR = 0.773, p

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0293580

DOI: 10.1371/journal.pone.0293580

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