The influence of sex and age on the relationship between sleep duration and metabolic syndrome in Korean adults

Stefani, Katherine M.; Kim, Hyeon Chang; Kim, Jieun; Oh, Kyungwon; Suh, Il

doi:10.1016/j.diabres.2013.10.003

Cited by 36 publications

(29 citation statements)

References 51 publications

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“…The findings of the current study were consistent with one recent study which reported that Korean females who slept ≥9 h/d had 1.43 times higher risk of MetS compared with those who slept 7 h/d [16]. Teresa et al explored the relationship between total sleep duration and MetS in 29,333 Chinese adults ages 50–96 years and found that participants who slept longer (≥8 h/d) were more likely to have MetS and its components [17].…”

Section: Discussionsupporting

confidence: 92%

Daily sleep duration and risk of metabolic syndrome among middle-aged and older Chinese adults: cross-sectional evidence from the Dongfeng–Tongji cohort study

Shen

et al. 2015

BMC Public Health

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BackgroundEvidence from epidemiological studies has demonstrated that a shorter or longer duration of nighttime sleep may increase the risk of metabolic syndrome. Little is known about the association between daily sleep duration, including nighttime sleep and daytime napping duration, and metabolic syndrome. We aimed to examine the association between daily sleep duration and metabolic syndrome and its components in middle-aged and older Chinese adults using data from the Dongfeng-Tongji Cohort study.MethodsA total of 25,184 participants (mean age 63.6 years) who completed the baseline questionnaire, physical examination and laboratory tests were included in this analysis. Daily sleep duration was calculated by summing up nighttime sleep duration and daytime napping duration. The metabolic syndrome was defined using the International Diabetes Federation criteria. Logistic regression models were used to investigate the association between daily sleep duration and the risk of metabolic syndrome and its components.ResultsOf the participants, 8,046 (31.9%) had metabolic syndrome. Females had a higher prevalence (38.6%) of metabolic syndrome than males (23.9%). Female participants with longer daily sleep duration (≥8 hours, all P < 0.05) per day had a higher risk of metabolic syndrome compared with those sleeping 7–7.9 hours, adjusting for potential confounders. Longer daily sleep was positively associated with individual components of metabolic syndrome except central obesity in females, and was only positively associated with HDL-C in males. Further analysis revealed that a longer duration of daytime napping (≥90 minutes, P < 0.05) was associated with the risk of metabolic syndrome in females. However, nighttime sleep duration was not associated with the risk of metabolic syndrome in either males or females.ConclusionsOur findings suggested that longer daytime napping duration rather than nighttime sleeping duration was associated with increased risk of metabolic syndrome in females. The findings have significant implications for further studies to explore the appropriate sleep duration for middle-aged and older adults.

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Section: Discussionsupporting

confidence: 92%

Daily sleep duration and risk of metabolic syndrome among middle-aged and older Chinese adults: cross-sectional evidence from the Dongfeng–Tongji cohort study

Shen

et al. 2015

BMC Public Health

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“…A total of 18 studies (22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39) were selected for inclusion in this metaanalysis. Table E4 outlines the characteristics of study participants.…”

Section: Resultsmentioning

confidence: 99%

“…Two studies (26,38) reported MetS using the 2005 AHA/NHLBI criteria but using the Asian definition of abdominal obesity. Four studies (22,31,34,36) reported MetS using the AHA/NHLBI criteria published in 2009 (43). Three (22,31,36) of these used the Asian-specific cut-off for waist circumference as specified in the 2009 AHA/NHLBI guidelines.…”

Section: Systematic Reviewmentioning

confidence: 99%

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Sleep Duration and Metabolic Syndrome. An Updated Dose–Risk Metaanalysis

et al. 2015

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Rationale: Several studies have reported that both short and long sleep durations are associated with the metabolic syndrome, but whether a dose-response relationship exists is unclear.Objectives: We performed a metaanalysis to study the magnitude of the association between the different durations of sleep and metabolic syndrome. Methods:We searched in the databases of PubMed, Web of Science, and Ovid (all Journals@Ovid) from inception to October 4, 2014 for cross-sectional studies where an association between metabolic syndrome and sleep duration was analyzed. Measurements and Main Results:Eighteen studies with 75,657 participants were included. Daily sleep duration of 7 to 8 hours was used as the reference group. The odds ratio (OR) of having metabolic syndrome for short (,7 h) sleep was 1.23 (95% CI, 1.11-1.37; P , 0.001; I 2 , 71%). The ORs for less than 5 hours, 5 to 6 hours, and 6 to 7 hours of sleep were 1.51 (95% CI, 1.10-2.08; P = 0.01), 1.28 (95% CI, 1.11-1.48; P , 0.001), and 1.16 (95% CI, 1.02-1.31; P = 0.02), respectively. The coefficient of sleep duration on log of ORs was 20.06 6 0.02 (P = 0.02). The OR for long sleep duration was 1.13 (95% CI, 0.97-1.32; P = 0.10; I 2 , 89%).Conclusions: A dose-response relationship exists between short sleep duration and metabolic syndrome. Those who report a sleep duration of less than 5 hours have a 1.5 higher odds of having metabolic syndrome. Our study does not support the notion that long sleep is associated with metabolic syndrome.

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“…Leisure-time physical activity or exercise has consistently showed an inverse correlation with MetS in both cross-sectional and longitudinal studies (8,13,(22)(23)(24)(25). Interests in the independent effects of sedentary time are growing (7,14,26,27).…”

Section: Introductionmentioning

confidence: 96%

Associations of exercise, sedentary time and insomnia with metabolic syndrome in Taiwanese older adults: A 1-year follow-up study

et al. 2015

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The influence of sex and age on the relationship between sleep duration and metabolic syndrome in Korean adults

Cited by 36 publications

References 51 publications

Daily sleep duration and risk of metabolic syndrome among middle-aged and older Chinese adults: cross-sectional evidence from the Dongfeng–Tongji cohort study

Daily sleep duration and risk of metabolic syndrome among middle-aged and older Chinese adults: cross-sectional evidence from the Dongfeng–Tongji cohort study

Sleep Duration and Metabolic Syndrome. An Updated Dose–Risk Metaanalysis

Associations of exercise, sedentary time and insomnia with metabolic syndrome in Taiwanese older adults: A 1-year follow-up study

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