Epidemiologic investigation on risk factors for cardiovascular diseases among residents of Quzhou area

Abstract

Objective To study the risk factors for cardiovascular diseases among residents of Quzhou area.Methods A total of 1 730 residents over 30 years old in Quzhou area were selected by stratified cluster sampling.All participants were interviewed with a questionnaire and received physical examination,and their blood samples were collected for laboratory tests.Results The prevalence rate of hypertension in residents over age of 30 was 40.17％ (695/1 730) and it increased with age growth (Z=15.88,P＜0.05); the rate was higher in males than in females (44.77％ vs 37.41％,x2=9.15,P＜0.05); and the rates in urban,suburbs and rural area were 43.22％,46.32％,and 30.84％,respectively,with a significant difference (x2=24.98,P＜0.05).The prevalence rate of lipid disorders was 31.73％,and the family history of chronic diseases and body mass index (BMI) were the risk factors for lipid disorders (OR=1.279,1.849,P all ＜0.05) and physical exercise was the protective factor (OR=0.604,P＜ 0.01) by multivariate logistic regression analysis.The prevalence rates of diabetic mellitus and impaired fasting glucose were 4.86％ and 8.09％,respectively,and both increased with age (x2=13.65,26.47,P all＜0.05).The smoking rate of 1 730 participants was 17.98％,with 47.38％ in males and 0.28％ in females (x2=610.67,P＜ 0.01).The prevalence rates of overweight and obesity were 30.46％ and 8.61％,respectively.The rate of overweight was 25.14％,29.35％,and 36.93％ in urban,suburbs and rural area,respectively,with a significant difference (x2=19.08,P＜ 0.05).However,no significant differences were noted in the rates of obesity among different area,gender,and age subgroups (x2=4.99,3.56,1.61,P all ＞0.05).Conclusions The prevalence of hypertension,diabetic mellitus,and impaired fasting glucose in Quzhou residents increases as their ages grow.Their diet structure may not be appropriate.Therefore,it is important to guide people to go on a healthy diet and do more exercises and to strengthen early screening for population with abnormal blood pressure,blood lipids,and blood glucose and the corresponding treatment. Key words: Cardiovascular diseases; Risk factors; Epidemiology