TY - JFULL
AU - Simon Brown
PY - 2011/10/
TI - Error Estimates for Calculated Glomerular Filtration Rates
T2 - International Journal of Biomedical and Biological Engineering
SP - 412
EP - 418
VL - 5
SN - 1307-6892
UR - https://publications.waset.org/pdf/7430
PU - World Academy of Science, Engineering and Technology
NX - Open Science Index 57, 2011
N2 - Glomerular filtration rate (GFR) is a measure of
kidney function. It is usually estimated from serum concentrations of
cystatin C or creatinine although there has been considerable debate
in the literature about (i) the best equation to use and (ii) the
variability in the correlation between the concentrations of creatinine
and cystatin C. The equations for GFR can be written in a general
form and from these I calculate the error of the GFR estimates
associated with analyte measurement error. These show that the
error of the GFR estimates is such that it is not possible to distinguish
between the equations over much of the concentration range of either
analyte. The general forms of the equations are also used to derive
an expression for the concentration of cystatin C as a function of the
concentration of creatinine. This equation shows that these analyte
concentrations are not linearly related. Clinical reports of cystatin C
and creatinine concentration are consistent with the expression
derived.
ER -