| Background and purposeSuzhou is located in economically developed area along the coast of southeast China. In recent years, morbidities for communicable and parasitic diseases have apparently decreased, and great changes taken place in the spectrums of disease and cause of death,and Cardio-cerebrovascular disease including hypertension have been the first cause of death in Suzhou city which have been a aged society. The purpose of this study is to explore the distribution characteristics and risk factors of hypertension in aged population and provide basis for prevention and control of hypertension.MethodsIn July to August of 2006, 4140 people (including 1763 men and 2377 women ) aged 70 years or above who were receiving physical examination were served as investigation subjects and included in the present analysis. Blood pressure (BP) measurements, physical examination and blood sample were obtained, and Total cholesterol (TC), triglycerides (TG), high density lipoprotein-cholesterol (HDL-C), low density lipoprotein-cholesterol (LDL-C), fast blood glucose (FBG) , and uric acid (UA) were analyzed for all subjects. Statistic analysis was conducted by using Spss software version 13.0. The means and standard deviation of continuous variables and comparison in means between two groups was conducted by t test, prevalence of categorical variables were calculated and comparison of prevalence between two groups was examined byχ2 tests . All P values were based on two-side test and a significance level of 0.05. Logistic regression analysis was employed to determine the risk factors for hypertension adjusted for multivariate.ResultsOverall prevalences of hypertension, hyperlipimia, diabetes and hyperuricemia were 56.11%, 26.93%, 11.91% and 14.35%, respectively. Systolic BP (138.04±16.64mmHg) was higher for women than it was (136.30±17.50mmHg) for men, P<0.01. There was no significant difference for diastolic BP between men and women (78.95±8.39 VS 78.30±8.27mmHg). Hypertension prevalence was higher for men than it was for women (57.46% vs 55.11% ), P<0.05. Systolic and diastolic BP and hypertension prevalence were increased with BMI, all P <0.01, and systolic and diastolic BP and hypertension prevalence were also increased with waist circumference , all P <0.01.Hypertension prevalence were higher for people with abnormal total cholesterol and hypercholesteremia (59.95% and 59.55%)than it was for those with normal total cholesterol (54.15%), all P<0.05. Hypertension prevalence were higher for people with abnormal triglycerides and hypertriglyceridemia (70.57% and 65.52%) than that for people with normal triglycerides (53.49%), all P<0.01. Hypertension prevalence were lower for people with increased HDL-C level compared with people with decreased HDL-C and normal HDL-C level(54.36% vs. 63.25% and 62.63%), P<0.01. Hypertension prevalence were higher for people with increased LDL-C level compared with people with normal LDL-C(62.49% vs 54.48%),P<0.01. Hypertension prevalence were higher for people with diabetes (66.73%)than that for people with normal FBG(54.43%), P<0.01. Hypertension prevalence were higher for people with hyperuricemia (64.48%)than that for people with normal uric acid(54.71%), P<0.01.By Logistic analysis, age, BMI, waist circumference, hypercholesteremia, hypertriglyceridemia, increased LDL-C and hyperuricemia were independently associated with hypertension in people aged 70 years and above, corresponding ORs were 1.017, 1.033, 1.013, 1.108, 1.157, 1.104 and 1.001,respectively, all P<0.01。ConclusionHypertension prevalence was higher, and age, overweight, obesity, hypercholesteremia, hypertriglyceridemia, increased LDL-C and hyperuricemia were independent risk factors for hypertension in people aged 70 years or above in Urban Area of Suzhou city. |
