title: Prevalence, awareness, treatment, control and risk factors related to hypertension among urban adults in Inner Mongolia 2014: differences between Mongolian and Han populations.
abstract: BACKGROUND
  Han and Mongolian populations constitute approximately 96% of the population of Inner Mongolia Autonomous Region, and the two ethnic groups have different genetic backgrounds and lifestyle. We aim to assess the prevalence, awareness, treatment, control, and related risk factors of hypertension among urban adults in Inner Mongolia, with the comparison of the differences between Mongolian and Han populations in this respect.
  
  
  METHODS
  Three thousand two hundred fifty-one individuals aged 20-80 years (2326 Han and 925 Mongolian) were selected using a multistage cluster sampling method from Inner Mongolia in 2014. The adjusted prevalence, awareness, treatment and control of hypertension were evaluated by the Logistic regression. In addition, possible interactions were also tested. When interactions were found significant, strata-specific analysis were performed. Multivariate logistic regression was used for estimating independent associations between risk factors and hypertension.
  
  
  RESULTS
  The prevalence of hypertension was 27.47% for Han population, 31.46% for Mongolian population. The adjusted prevalence, awareness, treatment and control of hypertension were 26.45, 65.43, 78.24 and 48.28% in Han, and 31.30, 68.22, 85.57 and 50.55% in Mongolian, respectively. There was no significant difference in the adjusted awareness, treatment and control of hypertension among Mongolian and Han adult residents (all P >0.05). Lower prevalence of hypertension was associated with younger age and healthy weight in both Mongolian and Han adults. Within Han adults, high education, moderate physical activity and non-alcohol drinkers were additionally associated with lower prevalence of hypertension, whereas within Mongolian adults, lower prevalence was associated with being female. Among residents with medium education level, nondrinkers had 0.60 times lower odds of having hypertension than current drinkers (OR = 0.60, 95% CI: 0.44-0.82); among residents with high education level, nondrinkers has 0.65 times lower odds of having hypertension than current drinkers (OR = 0.65, 95% CI: 0.43-0.97).
  
  
  CONCLUSIONS
  Mongolian population had a higher prevalence of hypertension than Han population. There were no significant difference between Mongolian and Han population in awareness, treatment and control of hypertension, which suggested that there was no difference between the two ethnicities in the distribution of health resources.
authors.affiliation: Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
authors.forename: Guoju
authors.initials: G
authors.lastname: Li
authors.affiliation: Inner Mongolia Center for Disease Control and Prevention, Hohhot, Inner Mongolia Autonomous Region, 010110, China.
authors.forename: Hailing
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Wang
authors.affiliation: Inner Mongolia Center for Disease Control and Prevention, Hohhot, Inner Mongolia Autonomous Region, 010110, China.
authors.forename: Wenrui
authors.initials: W
authors.lastname: Wang
authors.affiliation: Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
authors.forename: Fen
authors.initials: F
authors.lastname: Dong
authors.affiliation: Inner Mongolia Center for Disease Control and Prevention, Hohhot, Inner Mongolia Autonomous Region, 010110, China.
authors.forename: Yonggang
authors.initials: Y
authors.lastname: Qian
authors.affiliation: Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
authors.forename: Haiying
authors.initials: H
authors.lastname: Gong
authors.affiliation: Department of Epidemiology and Health Statistics, College of Public Health, Jilin University, Changchun, 130021, China.
authors.forename: Guodong
authors.initials: G
authors.lastname: Xu
authors.affiliation: Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
authors.forename: Yanlong
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
authors.forename: Li
authors.initials: L
authors.lastname: Pan
authors.affiliation: Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.affiliation: Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
authors.forename: Guangjin
authors.initials: G
authors.lastname: Zhu
authors.affiliation: Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China. guangliang_shan@163.com.
authors.forename: Guangliang
authors.initials: G
authors.lastname: Shan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D044466:Asian People / Q000706:statistics & numerical data*; D002681:China / Q000453:epidemiology; D005006:Ethnicity / Q000706:statistics & numerical data*; D005260:Female; D007722:Health Knowledge, Attitudes, Practice / Q000208:ethnology*; D006801:Humans; D006973:Hypertension / Q000208:ethnology* / Q000517:prevention & control / Q000628:therapy*; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D014505:Urban Population / Q000706:statistics & numerical data*; D055815:Young Adult
keywords: Ethnicity; Han; Hypertension; Mongolian; Urban