Abstract: Objective To compare two equations for calculating glomerular filtration rate (GFR) in the evaluation of the
prevalence of chronic kidney disease (CKD) and the risk factors of CKD in urban healthy population. Methods A total of 40377
subjects (24164 males and 16213 females) participated in this study. Body height, weight and blood pressure were measured,
and morning urine and venous blood samples were collected for routine urine and blood tests with measurements of blood
glucose, total cholesterol, high density lipoprotein (HDL), low-density lipoprotein (LDL), creatinine and uric acid. Results and
Conclusion Using Japanese CKD Epidemiology Collaboration (J-EPI) equation and Chinese modified Modification of Diet in
Renal Disease (C-MDRD) equation, the prevalence of CKD calculated was 3.9% and 6.3% in this population, respectively. The
independent risk factors of CKD included an age over 60 years, high uric acid, and high blood glucose.