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Relationships between sleep duration and adolescent depression: a conceptual replication
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January 30 2019
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Source: Sleep Health. 5(2):175-179
[PDF-71.08 KB]
Details:
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Alternative Title:Sleep Health
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Personal Author:
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Description:Objective
Given the growing concern about research reproducibility, we conceptually replicated a previous analysis of the relationships between adolescent sleep and mental well-being, using a new dataset.
Methods
We conceptually reproduced an earlier analysis (Sleep Health, June 2017) using baseline data from the START Study. START is a longitudinal research study designed to evaluate a natural experiment in delaying high school start times, examining the impact of sleep duration on weight change in adolescents. In both START and the previous study, school day bedtime, wake up time, and answers to a six-item depression subscale were self-reported using a survey administered during the school day. Logistic regression models were used to compute the association and 95% confidence intervals (CI) between the sleep variables (sleep duration, wake-up time and bed time) and a range of outcomes.
Results
In both analyses, greater sleep duration was associated with lower odds (P < 0.0001) of all six indicators of depressive mood. Five of the six sleep duration point estimates from the START Study, and four of the six wake-up time point estimates, fell within the 95% confidence intervals from the previous analysis. However, the associations between wake-up time and outcomes differed between the two studies’ analyses.
Conclusion
Our findings add strength to the evidence supporting an association between short sleep duration and depression. This issue deserves attention from school districts, given the current epidemic of short sleep duration among youth and the potential impact school scheduling can have on teen sleep.
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Pubmed ID:30928118
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Pubmed Central ID:PMC7040962
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