title: Prevalence and risk factors for isolated untreated systolic hypertension in rural Mongolian and Han populations.
abstract: OBJECTIVE
  The objective of this study was to assess the prevalence and correlative risk factors of isolated untreated systolic hypertension and other hypertension subtypes among Mongolians and Han rural adults of China.
  
  
  RESULTS
  The study was conducted in 2004-2006 and used a multistage cluster sampling method to select a representative sample. A total of 41,356 people who did not take antihypertensive drugs during the last 2 weeks and aged 35 years or older were examined. A survey on blood pressure and associated risk factors was carried out. Overall, 10.2% of rural adults had isolated systolic hypertension, 6.3% had isolated diastolic hypertension and 15.3% had systolo-diastolic hypertension (Han: 9.8%, 6.2%, 14.7%; Mongolians: 11.6%, 6.4%, 17.6%, respectively). The prevalence of ISH and SDH increased with age. Mongolians had a higher prevalence of ISH and SDH than Han people. Age, gender, BMI, and salt intake were risk factors of ISH and SDH both for Han people and Mongolians.
  
  
  CONCLUSIONS
  Hypertension was very common in rural people of China, and it was associated with many risk factors. These results place great emphasis on the urgent need for a public health programme to improve the detection, prevention and treatment of hypertension in the rural population of China.
authors.affiliation: Division of Cardiology, Shengjing Hospital of China Medical University, Shenyang, PR China.
authors.forename: Jiajin
authors.initials: J
authors.lastname: Li
authors.forename: Changlu
authors.initials: C
authors.lastname: Xu
authors.forename: Zhaoqing
authors.initials: Z
authors.lastname: Sun
authors.forename: Liqiang
authors.initials: L
authors.lastname: Zheng
authors.forename: Jue
authors.initials: J
authors.lastname: Li
authors.forename: Dayi
authors.initials: D
authors.lastname: Zhang
authors.forename: Xingang
authors.initials: X
authors.lastname: Zhang
authors.forename: Shuangshuang
authors.initials: S
authors.lastname: Liu
authors.forename: Fenfen
authors.initials: F
authors.lastname: Zhao
authors.forename: Dayi
authors.initials: D
authors.lastname: Hu
authors.forename: Yingxian
authors.initials: Y
authors.lastname: Sun
mesh_terms: D000328:Adult; D000368:Aged; D001794:Blood Pressure / Q000502:physiology*; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D006973:Hypertension / Q000208:ethnology* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D008986:Mongolia / Q000208:ethnology; D015337:Multicenter Studies as Topic / Q000706:statistics & numerical data; D015995:Prevalence; D016032:Randomized Controlled Trials as Topic / Q000706:statistics & numerical data; D012307:Risk Factors; D012424:Rural Population; D013599:Systole