title: [Mean level of blood pressure and rate of hypertension among people with different levels of body mass index and waist circumference].
abstract: OBJECTIVE
  To assess the relationship between body mass index (BMI), waist circumference (WC) and blood pressure (BP) including hypertension.
  
  
  METHODS
  A total of 30 003 participants aged 35 - 59 from different parts of China were surveyed for cardiovascular disease risk factors in two independent cross-sectional studies that were carried out in 1992 - 1994 and in 1998. Data were pooled to analyze the levels of BP and rates of hypertension with different levels of BMI and WC.
  
  
  RESULTS
  The level of BP and rate of hypertension were significantly increasing with rising of WC among the majority of BMI groups (P value for trend < 0.05) and significantly increasing with rising of BMI in all WC groups (P value for trend < 0.05). The age adjusted hypertension rate with BMI < 24.0 kg/m(2) and WC < 85/80 cm (men/women), BMI < 24.0 kg/m(2) and WC >or= 85/80 cm (M/W), BMI 24.0 - 27.9 kg/m(2) and WC < 85/80 cm (M/W), BMI 24.0 - 27.9 kg/m(2) and WC >or= 85/80 cm (M/W), BMI >or= 28 kg/m(2) and WC >or= 85/80 cm (M/W) were 16.5%, 29.8%, 29.6%, 39.2% and 57.5% for men and 14.1%, 20.6%, 24.7%, 30.3% and 43.3% for women, respectively.
  
  
  CONCLUSIONS
  Independent influence of BMI or WC on BP was noticed. Keeping BMI and WC at normal level might effectively prevent the occurrence of hypertension.
authors.affiliation: Department of Epidemiology, Fu Wai Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100037, China.
authors.forename: Lian-cheng
authors.initials: LC
authors.lastname: Zhao
authors.forename: Yang-feng
authors.initials: YF
authors.lastname: Wu
authors.forename: Bei-fan
authors.initials: BF
authors.lastname: Zhou
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
mesh_terms: D000328:Adult; D000886:Anthropometry / Q000379:methods*; D001794:Blood Pressure; D015992:Body Mass Index; D005260:Female; D006801:Humans; D006973:Hypertension / Q000453:epidemiology* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D012307:Risk Factors