Dietary Patterns and Insomnia Symptoms in Chinese Adults: The China Kadoorie Biobank.
Limited attention has been paid to the effect of dietary patterns on sleep problems. In the present study, we analyzed the cross-sectional data of 481,242 adults aged 30-79 years from the China Kadoorie Biobank. A laptop-based questionnaire was administered to collect information on food intakes and insomnia symptoms. Logistic regression was used to estimate the odds ratios of each insomnia symptom according to quartiles of each dietary pattern, with adjustment for potential confounders. Two major dietary patterns were derived by factor analysis. The traditional northern dietary pattern was characterized by high intakes of wheat and other staple food, whereas the modern dietary pattern was characterized by high intakes of meat, poultry, fish, eggs, fresh fruit, and dairy products. Both dietary patterns were associated with a decreased prevalence of insomnia symptoms (pfor trend < 0.001); after adjustment for potential confounders, individuals who had the highest quartile score of traditional northern dietary pattern were 12%-19% less likely to have insomnia symptoms compared to those in the lowest quartile (odds ratio: 0.81-0.88), and the corresponding values for the modern dietary pattern were 0.89-1.01. Furthermore, interactions of these two dietary patterns on insomnia symptoms were observed. Further prospective studies are needed to elucidate the relationship between diet and insomnia.
Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing 100191, China. yucanqing@pku.edu.cn.
Canqing
C
Yu
Discipline of Medicine, University of Adelaide, SAHMRI, North Terrace, Adelaide SA 5000, Australia. zumin.shi@adelaide.edu.au.
Zumin
Z
Shi
Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing 100191, China. lvjun@bjmu.edu.cn.
Jun
J
Lv
Chinese Academy of Medical Sciences, Fuwai Hospital Xishan Branch Court, Western Feng Cun, Mentougou, Beijing 102308, China. guoyu@kscdc.net.
Yu
Y
Guo
Chinese Academy of Medical Sciences, Fuwai Hospital Xishan Branch Court, Western Feng Cun, Mentougou, Beijing 102308, China. bianzheng@kscdc.net.
Zheng
Z
Bian
Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford OX3 7LF, UK. huaidong.du@ndph.ox.ac.uk.
Huaidong
H
Du
Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford OX3 7LF, UK. yiping.chen@ndph.ox.ac.uk.
Yiping
Y
Chen
Department of Non-communicable Diseases, Jiangsu Center for Disease Control and Prevention, No.172 Jiangsu Road, Gulou District, Nanjing 210009, China. trltjy@163.com.
Ran
R
Tao
Department of Non-communicable Diseases, Guangxi Center for Disease Control and Prevention, No.18 Jinzhou Road, Nanning 530028, China. huangying526@sina.com.
Ying
Y
Huang
China National Center for Food Safety Risk Assessment, 37 Guangqu Road, Beijing 100738, China. chenjunshi@cfsa.net.cn.
Junshi
J
Chen
Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford OX3 7LF, UK. zhengming.chen@ndph.ox.ac.uk.
Zhengming
Z
Chen
Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing 100191, China. lmlee@bjmu.edu.cn.|Chinese Academy of Medical Sciences, Fuwai Hospital Xishan Branch Court, Western Feng Cun, Mentougou, Beijing 102308, China. lmlee@bjmu.edu.cn.
Liming
L
Li
D000328:Adult; D000368:Aged; D002681:China / Q000453:epidemiology; D003611:Dairy Products; D004032:Diet; D004531:Eggs; D005638:Fruit; D006801:Humans; D016015:Logistic Models; D008460:Meat; D008875:Middle Aged; D015596:Nutrition Assessment; D015995:Prevalence; D025341:Principal Component Analysis; D011446:Prospective Studies; D007319:Sleep Initiation and Maintenance Disorders / Q000453:epidemiology*; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D014675:Vegetables
Chinese; daytime dysfunction; dietary pattern; difficulty initiating sleep; difficulty maintaining sleep; insomnia; sleep