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Association between Total Sleep Duration and Suicidal Ideation among the Korean General Adult Population

 Jae-Hyun Kim  ;  Eun-Cheol Park  ;  Woo-Hyun Cho  ;  Jong-Yeon Park  ;  Won-Jung Choi  ;  Hoo-Sun Chang 
 SLEEP , Vol.36(10) : 1563-1572, 2013 
Journal Title
Issue Date
Adult ; Age Factors ; Cross-Sectional Studies ; Female ; Health Status ; Health Surveys ; Humans ; Logistic Models ; Male ; Republic of Korea/epidemiology ; Risk Factors ; Sleep* ; Sleep Wake Disorders/psychology ; Socioeconomic Factors ; Suicidal Ideation* ; Young Adult
Suicidal ideation ; depressive symptom ; gender ; sleep
STUDY OBJECTIVES: Examine the association between sleep duration and suicidal ideation in Korean adults. DESIGN: Cross-sectional survey. SETTING: Data obtained by the Korea National Health and Nutrition Examination Survey IV (2007-2009) using a rolling sampling design involving a complex, stratified, multistage, and probability-cluster survey of civilian non-institutionalized Korean residents. PARTICIPANTS: A total of 15,236 subjects (6,638 males and 8,598 females) ≥ 19 years old. MEASUREMENTS AND RESULTS: The weighted prevalence of self-reported short sleep duration (≤ 5 h/day) was 11.7% in males and 15% in females, and of long sleep duration (≥ 9 h/day) was 6.7% in males and 8.9% in females. A U-shaped relationship existed, with both short and long sleep durations associated with a higher suicidal ideation risk. Multiple logistic regression analysis was used to analyze the relationship between sleep duration and suicidal ideation, adjusting for sociodemographic factors, health behavior, and health status. After controlling for covariates, people with short sleep were 38.1% more likely to have suicidal ideation (OR = 1.381, 95% CI 1.156-1.650) than people with sleep duration of 7 h/day. Suicidal ideation was 1.196 times higher (95% CI: 0.950-1.507) in long-sleeping people than people sleeping 7 h/day, although statistically not significant. Inclusion of depressive mood (a potential confounder) in multiple logistic regression models attenuated but did not eliminate the sleep duration/suicidal ideation association. LIMITATIONS: Sleep duration and suicidal ideation were assessed only by self-report. CONCLUSIONS: The sleep duration/suicidal ideation relationship is U-shaped in the Korean adult population. Self-reported habitual sleep duration may be a useful behavioral indicator for both individual and societal suicidal ideation risk.
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4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Psychiatry (정신과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
Park, Eun-Cheol(박은철) ORCID logo https://orcid.org/0000-0002-2306-5398
Park, Jong Yeon(박종연)
Cho, Woo Hyun(조우현)
Choi, Won Jung(최원정)
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