title: Prevalence of overweight/obesity and its associations with hypertension, diabetes, dyslipidemia, and metabolic syndrome: a survey in the suburban area of Beijing, 2007.
abstract: OBJECTIVE
  This study aims to estimate the up-to-date prevalence of overweight/obesity in the suburban area of Beijing, China, and its associations with hypertension, diabetes, dyslipidemia, and metabolic syndrome (MetS).
  
  
  METHODS
  A cross-sectional survey in 19,003 suburban adults was carried out in Beijing, 2007. Overweight and obesity class 1, 2, and 3 were defined as a body mass index (BMI) of 25.0-29.9, 30.0-34.9, 35.0-39.9, and ≥ 40 kg/m(2), respectively.
  
  
  RESULTS
  The age-standardized prevalence of overweight/obesity was 31.9% in the study. With increasing BMI, the prevalence of hypertension, diabetes, dyslipidemia, and MetS also increased. With normal body weight as reference, the adjusted odds ratio (95% confidence interval) of hypertension for overweight and obesity class 1-3 was 2.5 (2.2-2.7), 3.1 (2.8-3.4), 3.6 (3.1-4.3), and 4.5 (4.0-5.2), respectively. The same trend was observed for diabetes and MetS. For dyslipidemia, however, participants with obesity class 2 had the highest odds ratio.
  
  
  CONCLUSIONS
  The prevalence of hypertension, diabetes, dyslipidemia, and MetS increases with increasing BMI. Overweight/obesity is an important risk factor for these diseases. To reduce the social burden of these obesity-related diseases, effective strategies for the prevention of overweight/obesity should be implemented.
authors.affiliation: Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Epidemiology, Peking University Cancer Hospital & Institute, Beijing, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Wei-Hong
authors.initials: WH
authors.lastname: Zhang
authors.forename: Lian
authors.initials: L
authors.lastname: Zhang
authors.forename: Pei-Yu
authors.initials: PY
authors.lastname: Wang
mesh_terms: D000328:Adult; D015992:Body Mass Index; D002681:China / Q000453:epidemiology; D003920:Diabetes Mellitus / Q000453:epidemiology / Q000209:etiology*; D050171:Dyslipidemias / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D024821:Metabolic Syndrome / Q000150:complications* / Q000453:epidemiology; D008875:Middle Aged; D009765:Obesity / Q000150:complications* / Q000453:epidemiology; D016017:Odds Ratio; D015995:Prevalence; D012307:Risk Factors; D013383:Suburban Population