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The Association between Sleep Duration and Self-Rated Health in the Korean General Population

 Jae-Hyun Kim  ;  Kyung Ran Kim  ;  Kyoung Hee Cho  ;  Ki-Bong Yoo  ;  Jeoung A. Kwon  ;  Eun-Cheol Park 
 JOURNAL OF CLINICAL SLEEP MEDICINE, Vol.9(10) : 1057-1064, 2013 
Journal Title
Issue Date
Adult ; Age Factors ; Confidence Intervals ; Cross-Sectional Studies ; Diagnostic Self Evaluation* ; Female ; Health Status* ; Humans ; Male ; Middle Aged ; Odds Ratio ; Reference Values ; Republic of Korea ; Self Report* ; Sex Factors ; Sleep/physiology* ; Sleep Wake Disorders/diagnosis ; Surveys and Questionnaires ; Time Factors
KNHANES ; Sleep ; age ; body mass index (BMI) ; gender ; self-rated health ; sleep duration
STUDY OBJECTIVES: Sleep duration is recognized as one of the most common issues in modern society. Self-rated health is a commonly used subjective health measure based on a single question asking individuals to rate their general health on a four- or five-point scale. However, few studies have examined the relationship between sleep duration and self-rated health. Here, we examined the association between sleep duration and poor self-rated health, using a large representative sample of the general Korean adult population. DESIGN: We conducted a cross-sectional study of 15,252 participants in the Korea National Health and Nutrition Examination Survey IV (2007-2009) who were aged 19 years and older. Sleep duration was categorized as ≤ 5, 6, 7, 8, or ≥ 9 hours. The main outcome of interest was poor self-rated health (n = 3,705, 19.7%). Multiple logistic regression analysis was performed to examine the association between sleep duration and self-rated health. RESULTS: We found both short (≤ 5 h) and long (≥ 9 h) sleep duration to be associated with poor self-rated health independent of sociodemographic, health risk, and health status variables. Compared with 7-h sleep duration, the multivariate odds of poor self-rated health were 1.358 times higher (95% CI 1.167-1.580) with short sleep duration and 1.322 times higher (95% CI 1.091-1.601) with long sleep duration. This association persisted in subgroup analyses of gender, body mass index, and age by gender. CONCLUSIONS: In a large representative sample of the Korean general adult population, compared with sleep duration of 7 hours, we found a positive association between short and long sleep duration and poor self-rated health in Korean adults. Furthermore, the association between sleep duration and poor self-rated health was consistently present in subgroups divided by gender, age, and BMI.
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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
Kim, Kyung Ran(김경란) ORCID logo https://orcid.org/0000-0001-8375-1851
Park, Eun-Cheol(박은철) ORCID logo https://orcid.org/0000-0002-2306-5398
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