title: [Prevalence of prehypertension and associated cardiovascular risk: two years follow up results].
abstract: OBJECTIVE
  To observe the prevalence, blood pressure change in prehypertensive population and associated cardiovascular risk factors.
  
  
  METHODS
  Data from a prehypertensive cohort defined with the JNC-7 prehypertension diagnostic criteria were obtained in the employees of kailuan group during the health examination between 2006 to 2007 and the same population was revisited between 2008 to 2009 to observe the change of blood pressure and the associated determinants for blood pressure change.
  
  
  RESULTS
  (1) There were 25 474 prehypertensive during the 1(st) visit and 8361 subjects developed hypertension during the 2(nd) visit (35.3% in men and 23.3% in women, 27.2% with baseline blood pressure 120 - 129/80 - 84 mm Hg (1 mm Hg = 0.133 kPa) and 43.8% with baseline blood pressure 130 - 139/85 - 89 mm Hg, 34.3% with risk factors and 19.9% without risk factors). (2) Multiple logistic regression analysis showed that the baseline SBP, waist circumference, age, BMI, gender (male), DBP, TC, FBG, TG, LDL-C were the risk factors of blood pressure progression with a RR (95%CI) of 1.052 (1.048 - 1.056), 1.009 (1.006 - 1.013), 1.023 (1.021 - 1.026), 1.063 (1.052 - 1.074), 1.554 (1.442 - 1.675), 1.036 (1.029 - 1.043), 1.064 (1.037 - 1.093), 1.043 (1.024 - 1.062), 1.041 (1.021 - 1.062) and 1.035 (1.000 - 1.072), respectively.
  
  
  CONCLUSIONS
  A third (32.8%) prehypertensive population progressed into hypertension after two years, baseline SBP, waist circumference, age, BMI, gender (male), DBP, TC, FBG, TG, LDL-C were the risk factors of predicting blood pressure progression.
authors.affiliation: Affiliated Kailuan Hospital, North China Coal Medical College, Tangshan 063000, China. drwusl@163.com
authors.forename: Shou-ling
authors.initials: SL
authors.lastname: Wu
authors.forename: Zi-qiang
authors.initials: ZQ
authors.lastname: Zhang
authors.forename: Sheng-bin
authors.initials: SB
authors.lastname: Song
authors.forename: Tai-cheng
authors.initials: TC
authors.lastname: Yao
authors.forename: Yun
authors.initials: Y
authors.lastname: Li
authors.forename: Jian-li
authors.initials: JL
authors.lastname: Wang
authors.forename: Na
authors.initials: N
authors.lastname: Wang
authors.forename: Cheng
authors.initials: C
authors.lastname: Jin
authors.forename: Jin-feng
authors.initials: JF
authors.lastname: Li
mesh_terms: D000328:Adult; D001786:Blood Glucose / Q000378:metabolism*; D001794:Blood Pressure; D002318:Cardiovascular Diseases / Q000453:epidemiology; D002784:Cholesterol / Q000097:blood*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006973:Hypertension / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D058246:Prehypertension / Q000453:epidemiology*; D015995:Prevalence; D012307:Risk Factors; D055105:Waist Circumference
chemical_list: D001786:Blood Glucose; D002784:Cholesterol