ArticleJournal of clinical neurology (Seoul, Korea)2023
Longitudinal Trends in Sleep and Related Factors Among South Korean Adults From 2009 to 2018.
Article in Journal of clinical neurology (Seoul, Korea), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- Age-group differential trends in the incidence of herpes zoster during 2010-2024 using Korean national healthcare claim data.Human vaccines & immunotherapeutics · 2026Article
- Sleep duration, sleep-wake schedules, and social jetlag among corporate employees in Japan: Age- and gender-based comparisons of wearable device data (2019-2022).Preventive medicine reports · 2026Article
- Chronotype and All-Cause Mortality in US Middle-Aged and Older Adults: Results From the NHANES.Journal of sleep research · 2026Article
- Association between sleep duration and thirst in a nationally representative cross-sectional survey.Scientific reports · 2026Article
- The dietary factors associated with sleep duration in postmenopausal middle-aged women: a cross-sectional study using 2019-2023 Korea National Health and Nutrition Examination Survey data.Korean journal of community nutrition · 2025Article
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Corrections and comments
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Authors and funding
9 authors at 7 institutions in 1 country.
Funding
Abstract
background and purposeExcess or insufficient sleep, irregular sleep-wake patterns, and an extreme early or late chronotypes adversely impact physical and mental health. Changes in sleep characteristics should therefore be tracked, and factors that contribute to poor sleep should be identified. We investigated the changes in sleep patterns among South Korean adults during 2009-2018.
methodsUsing data of a representative sample of South Korean adults from the 2009 (
resultsFrom 2009 to 2018, bedtimes were advanced by 10 and 25 min on workdays and free days, respectively. Meanwhile, wake-up times were advanced by 13 min and delayed by 12 min on workdays and free days, respectively. The average sleep duration significantly decreased from 7.45 h to 7.13 h. The prevalence of short sleep duration (<7 h) increased, whereas that of long sleep duration (≥8 h) decreased. A circadian preference toward eveningness and SJL increased. The prevalence of depression increased from 4.6% to 8.4%, and there were significant reverse J-shaped and U-shaped associations between average sleep duration and depression in 2009 and 2018, respectively.
conclusionsChanges in sleep patterns and the association between sleep duration and depressive mood were determined from a representative sample of the South Korean adult population. Interventions to modify sleep behaviors might improve public health.
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Registered trials
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