Prevalence and risk factors of adult overweight and obesity in Guiyang city

Objective To study the prevalence and risk factors of adult overweight and obesity at age 20 years and over in Guiyang city.Methods Data of 1514 subjects were collected by random cluster sampling through questionnaire,physical examination and blood glucose and lipid assay.Results The mean BMI of all subjects was(23.70±3.59) kg/m2.Among all subjects,33.42% were in overweight and 11.69% were obese.The prevalence of overweight was 39.76% in male(n=636),higher than 28.76% in female(n=878)(χ2=18.953,P=0.000),especially in the group aged 20~.The prevalence of obesity was 11.85% and 11.65% in male and female respectively.Compared with the data of the whole country in 2002,the prevalence of overweight and obesity was increased,both in male and female.Subjects with higher education background had a lower rate of overweight and obesity.Conclusion The prevalence of overweight and obesity is high in the adults of Guiyang city,and young male and people with lower education background should be given more attention.