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KMID : 1141520230380010146
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Endocrinology and Metabolism
2023 Volume.38 No. 1 p.146 ~ p.155
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Sleep Duration and the Risk of Type 2 Diabetes: A Community-Based Cohort Study with a 16-Year Follow-up
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Lee Da-Young
Jung In-Ha
Park So-Young
Yu Ji-Hee
Seo Ji-A
Kim Kyeong-Jin
Kim Nam-Hoon
Yoo Hye-Jin
Kim Sin-Gon
Choi Kyung-Mook
Baik Sei-Hyun
Lee Seung-Ku
Shin Chol
Kim Nan-Hee
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Abstract
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Background: We aimed to investigate the moderating effects of obesity, age, and sex on the association between sleep duration and the development of diabetes in Asians.
Methods: We analyzed data from a cohort of the Korean Genome and Epidemiology Study conducted from 2001 to 2020. After excluding shift workers and those with diabetes at baseline, 7,407 participants were stratified into three groups according to sleep duration: ≤5 hours/night, >5 to 7 hours/night (reference), and >7 hours/night. The Cox proportional hazards analyses were used to calculate the hazard ratios (HRs) and 95% confidence intervals (CIs) for incident type 2 diabetes mellitus (T2DM). Subgroup analyses were performed according to obesity, age, and sex.
Results: During 16 years of follow-up, 2,024 cases of T2DM were identified. Individuals who slept ≤5 h/night had a higher risk of incident diabetes than the reference group (HR, 1.17; 95% CI, 1.02 to 1.33). The subgroup analysis observed a valid interaction withsleep duration only for obesity. A higher risk of T2DM was observed in the ≤5 hours/night group in non-obese individuals, men, and those aged <60 years, and in the >7 hours/night group in obese individuals (HRs were 1.34 [95% CI, 1.11 to 1.61], 1.22 [95% CI, 1to 1.49], and 1.18 [95% CI, 1.01 to 1.39], respectively).
Conclusion: This study confirmed the effect of sleep deprivation on the risk of T2DM throughout the 16-year follow-up period. This impact was confined to non-obese or young individuals and men. We observed a significant interaction between sleep duration and obesity.
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KEYWORD
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Diabetes mellitus, Sleep deprivation, Sleep duration, Cohort studies, Sleep, Diabetes mellitus, type 2, Obesity
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