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Open AccessArticle

Association of Dietary Behaviors and Sleep Quality: Results from the Adults Chronic Diseases and Risk Factors Survey of 2015 in Ningbo, China

1
Department of Preventive Medicine, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo 315211, China
2
Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
3
National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
*
Authors to whom correspondence should be addressed.
F.K. and H.L. are co-first authors of this work.
Int. J. Environ. Res. Public Health 2018, 15(9), 1823; https://doi.org/10.3390/ijerph15091823
Received: 4 July 2018 / Revised: 20 August 2018 / Accepted: 21 August 2018 / Published: 23 August 2018
Objective: We estimated the relationship between dietary behaviors and sleep quality in adults. Methods: Using data from the 2015 Ningbo Adult Chronic Diseases and Risk Factors Survey, a total of 5160 participants were included in this study. Sleep quality was measured by the Pittsburgh Sleep Quality Index (PSQI). PSQI score ≥ 7 was defined as poor sleep quality. Logistic regression was used to estimate the associations between dietary behaviors and sleep quality. Linear regression was used to explore the associations between dietary behaviors and PSQI total score. Results: Approximately 8.6% (n = 442) participants reported poor sleep quality. After adjusted for multivariates, there was 0.022 point increase in PSQI score for every gram increase in each meal consumption of soy sauce (β = 0.022, p = 0.001). Less intake of dark fruits, water and more intake of alcohol were associated with higher PSQI score (β = −0.394, p = 0.001; β = −0.246, p = 0.001; and β = 0.217, p = 0.005, respectively). Conclusions: About 8.6% (n = 442) adults reported poor sleep quality in Ningbo. Intake of soy sauce and alcohol were positively associated with poor sleep quality, and consumption of dark fruits and water were positively associated with good sleep quality. View Full-Text
Keywords: dietary behavior; sleep quality; cross-sectional study; PSQI dietary behavior; sleep quality; cross-sectional study; PSQI
MDPI and ACS Style

Kong, F.; Li, H.; Xu, G.; Ying, Y.; Gong, Q.; Zhao, J.; Zhang, X.; Zhang, L.; Liu, S.; Han, L. Association of Dietary Behaviors and Sleep Quality: Results from the Adults Chronic Diseases and Risk Factors Survey of 2015 in Ningbo, China. Int. J. Environ. Res. Public Health 2018, 15, 1823.

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