Qiao Feng Song1, Xiao Xue Liu1, Wan Ning Hu2, Xiao Chen Han3, Wen Hua Zhou1, Ai Dong Lu4, Xi Zhu Wang1, Shou Ling Wu5. 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; Department of Head and Neck Surgery, 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.
Abstract
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..
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..
Authors: Cecilie Schou Andreassen; Ståle Pallesen; Bente E Moen; Bjørn Bjorvatn; Siri Waage; Wilmar B Schaufeli Journal: Ind Health Date: 2018-05-15 Impact factor: 2.179