title: Relationship of Sleep Duration with Sociodemographic Characteristics, Lifestyle, Mental Health, and Chronic Diseases in a Large Chinese Adult Population.
abstract: OBJECTIVE
  Pattern of sleep duration and its correlates have rarely been reported in China. This study examined the sleep duration and its relationship with sociodemographic variables, lifestyle, mental health, and chronic diseases in a large Chinese adult population.
  
  
  METHODS
  This cross-sectional study used multistage stratified cluster sampling. A total of 17,320 participants from Jilin province were selected and interviewed using standardized assessment tools. Basic socio-demographic and clinical data were collected. Sleep duration was classified as short (< 7 h per day), long (> 9 h per day) and medium sleep (7-9 h per day).
  
  
  RESULTS
  The mean age of the sample was 42.60 ± 10.60 y, with 51.4% being female. The mean sleep duration was 7.31 ± 1.44 h. Short and long sleepers accounted for 30.9% and 6.9% of the sample, respectively. Multinomial logistic regression analysis revealed that older age, current smoking, irregular meal pattern, lack of physical exercise, poor mental health, and chronic diseases or multimorbidity were positively associated with short sleep. Being married and living in rural areas were, however, negatively associated with short sleep. In addition, living in rural area, current smoking, current alcohol use and lack of physical exercise were positively associated with long sleep, while older age and lower education were negatively associated with long sleep.
  
  
  CONCLUSIONS
  Given the high frequency of short sleep and its negative effect on health, health professionals should pay more attention to sleep patterns in general health care. Nationwide epidemiologic surveys in China are needed to further explore the relationship between sleep duration and health.
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China.|Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR, China.
authors.forename: Shibin
authors.initials: S
authors.lastname: Wang
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Li
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China.
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Wu
authors.affiliation: University of Notre Dame Australia / Marian Centre, Perth, Australia.|School of Psychiatry and Clinical Neurosciences, University of Western Australia, Perth, Australia.
authors.forename: Gabor S
authors.initials: GS
authors.lastname: Ungvari
authors.affiliation: Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia.
authors.forename: Chee H
authors.initials: CH
authors.lastname: Ng
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China.
authors.forename: Yingli
authors.initials: Y
authors.lastname: Fu
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China.
authors.forename: Changgui
authors.initials: C
authors.lastname: Kou
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China.
authors.forename: Yaqin
authors.initials: Y
authors.lastname: Yu
authors.affiliation: Peking University Sixth Hospital/Institute of Mental Health and Key Laboratory of Mental Health, Ministry of Health, Peking University, Beijing, China.
authors.forename: Hong-Qiang
authors.initials: HQ
authors.lastname: Sun
authors.affiliation: Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR, China.
authors.forename: Yu-Tao
authors.initials: YT
authors.lastname: Xiang
mesh_terms: D000293:Adolescent; D000328:Adult; D000428:Alcohol Drinking / Q000453:epidemiology; D002681:China / Q000453:epidemiology; D002908:Chronic Disease / Q000453:epidemiology*; D016000:Cluster Analysis; D015897:Comorbidity; D003430:Cross-Sectional Studies; D015444:Exercise; D005260:Female; D006304:Health Status; D006306:Health Surveys / Q000379:methods / Q000706:statistics & numerical data*; D006801:Humans; D008019:Life Style; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology*; D008603:Mental Health; D008875:Middle Aged; D012424:Rural Population / Q000706:statistics & numerical data; D012890:Sleep; D012892:Sleep Deprivation / Q000453:epidemiology*; D012907:Smoking / Q000453:epidemiology; D012959:Socioeconomic Factors; D013997:Time Factors; D055815:Young Adult
keywords: China; chronic disease; mental health; sleep duration