Longitudinal analysis of performance of estimated glomerular filtration rate as renal function declines in chronic kidney disease

摘要

Background. Numerous studies have assessed the accuracy of equations estimating glomerular filtration rate (eGFR) from serum creatinine in individuals with chronic kidney disease (CKD) in cross-sectional studies. Limited literature exists, however, on the consistency of performance of these equations in longitudinal studies as renal function declines.