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Night Sleep Duration and Risk of Cognitive Impairment in a Chinese Population: A Cross-sectional Study

查看全文 作　　者：SONG Qiao [1]Feng;LIU Xiao [1]Xue;HU Wan [2,3]Ning;HAN Xiao [3]Chen;ZHOU Wen [1]Hua;LU Ai [4]Dong;WANG Xi [1]Zhu;WU Shou [5]Ling 高影响力作者 机构地区：[1]Department of Cardiology,Tangshan People's Hospital,North China University of Science and Technology,Tangshan 063000,Hebei,China;[2]The Cancer Institute,Tangshan People's Hospital,Tangshan 063000,Hebei,China;[3]Department of Head and Neck Surgery,Tangshan People's Hospital,Tangshan 063000,Hebei,China;[4]Department of Ophthalmology,Kailuan Hospital,North China University of Science and Technology,Tangshan 063000,Hebei,China;[5]Department of Cardiology,Kailuan Hospital,North China University of Science and Technology,Tangshan 063000,Hebei,China高影响力机构 出　　处：《Biomedical and Environmental Sciences》索引2017年第30卷第10期,共9页高影响力期刊 摘　　要：Objective Although sleep is one of the most important health-related behavioral factors,the association between night sleep duration and cognitive impairment has not been fully understood.A cross-sectional study was conducted with a random sample of 2,514 participants(≥40 years of age;46.6% women) in China to examine the association between night sleep duration and cognitive impairment.Methods Night sleep duration was categorized as ≤ 5,6,7,8,or ≥9 h per night.Cognitive function was measured using the Mini-Mental State Examination.A multivariate regression analysis was used to analyze the association of night sleep duration with cognitive impairment.A total of 122 participants were diagnosed with cognitive impairment.Results A U-shaped association between night sleep duration and cognitive impairment was found.The odds ratios(95% confidence intervals) of cognitive impairment(with 7 h of daily sleep being considered as the reference) for individuals reporting ≤ 5,6,8,and ≥9 h were 2.14(1.20-3.83),1.13(0.67-1.89),1.51(0.82-2.79),and 5.37(1.62-17.80),respectively(P≤0.01).Conclusion Short or long night sleep duration was an important sleep-related factor independently associated with cognitive impairment and may be a useful marker for increased risk of cognitive impairment. 关 键 词：睡眠时间 中国人群 功能损害 横断面 认知功能障碍 危险性 认知障碍 多元回归分析
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