[Association of risk factors for cardiovascular disease and the rate of glomerular filtration: a cross-sectional study in the population from certain areas of Beijing].

OBJECTIVE: Data from several large prospective studies revealed that a low glomerular filtration rate was independently associated with cardiovascular disease (CVD) events and all-cause mortality in high-risk populations. Much on the association was explained by traditional CVD risk factors. However, findings from population-based studies were scarce and inconsistent. We explored the correlation between risks factors of cardiovascular and chronic kidney disease (CKD) in a general population from certain area of Beijing.

METHODS: A population-based cross-sectional survey was conducted during Sep. 2007 to Oct. 2008 in Beijing. Out of 5100 individuals who were selected, 4515 met the inclusion criteria and responded to the investigation. By face to face interview, a questionnaire was used to find out the risk factors of cardiovascular disease. Body height, body weight and blood pressures were measured. Serum creatinine and total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) were detected. Glomerular filtration rate through using the Modification of Diet in Renal Disease equation was estimated. Participants were grouped into three: >/= 90, 60 - 89, < 60 [mlxmin(-1)x(1.73 m(2))(-1)] by eGFR. Univariate and multivariate logistic regression models were used to identify the associated risk factors.

RESULTS: Exposure rate of cardiovascular disease risk factors increased along with the decrease of level of eGFR. Data from univariate logistic regression analyses suggested that age, smoking, history of hypertension and diabetes, BMI, SBP, LDL-C and TG were risk factors of CKD while results from multiple logistic regression indicated that age, smoking, hypertension, high level of TG appeared to be independent risk factors of CKD.

CONCLUSION: Exposure rate of cardiovascular disease risk factors increased along with the decrease of level of eGFR while age, hypertension, high level of TG and smoking were independent risk factors of CKD.