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KMID : 0928320100100020071
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Korean Journal of Health Promotion and Disease Prevention
2010 Volume.10 No. 2 p.71 ~ p.77
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Relationship between Sleep Duration, Sleep Satisfaction and Metabolic Syndrome
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Hwang In-Cheol
Suh Heuy-Sun
Kim Kyoung-Kon
Choi Chung-Hyun
Lee Kyoung-Shik
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Abstract
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Background: Previous studies have indicated that a short sleep duration is associated with several metabolic risk factors and metabolic syndrome (MS). However, studies that consider not only sleep duration but also subjective sleep satisfaction are rare.
Methods: This study was based on data obtained from the third Korean National Health and Nutrition Examination Survey (2005). A total of 4,970 individuals aged 20 years and older were selected and then divided into two groups based on subjective sleep satisfaction, satisfied with their sleep or dissatisfied. Hereafter, we matched each group using propensity score matching methods resulting in a final analytical sample of 3,572 subjects (1,443 men and 2,129 women). These subjects were categorized into 3 groups based on the average number of hours slept per night- short sleepers (≤5h), optimal sleepers (6~8h), and long sleepers (≥9h). Optimal sleepers served as the reference group.
Results: In terms of satisfaction, the longer our subjects slept, the more satisfied they felt. In the dissatisfied group, by contrast with the satisfied group, short sleepers demonstrated a significantly higher prevalence of metabolic risk factors and MS than optimal sleepers. Similar findings were also observed with lipid profiles,
which had not been shown in previous studies. In logistic regression analysis for prediction of MS, unadjusted odds ratio (OR) was 2.08 (95% CI: 1.64~2.64) and adjusted OR was 1.64 (95% CI: 1.27~2.12) in short sleepers of the dissatisfied group.
Conclusions: Contrary to the sleep satisfied group, the sleep dissatisfied group exhibited a higher prevalence of MS in short sleepers.
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KEYWORD
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Sleep duration, Metabolic syndrome, Subjective sleep satisfaction
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