Inker et al reported equations for estimating glomerular filtration rate (eGFR) based on serum creatinine and cystatin C concentrations, age, gender and race. It was developed by the CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) investigators.
Parameters:
(1) gender
(2) age in years
(3) serum creatinine in mg/dL
(4) serum cystatin C in mg/L
(5) race
|
Parameter |
Finding |
Factor A |
|
serum cystatin |
<= 0.8 |
-0.375 |
|
|
> 0.8 |
-0.711 |
|
Parameter |
Finding |
Factor B |
|
gender |
male |
1 |
|
|
female |
0.963 |
|
Parameter |
Finding |
Factor C |
|
gender |
male |
0.9 |
|
|
female |
0.7 |
|
Gender |
Serum Creatinine |
Factor D |
|
female |
<= 0.7 |
-0.248 |
|
|
> 0.7 |
-0.601 |
|
male |
<= 0.9 |
-0.207 |
|
|
> 0.9 |
-0.601 |
|
Parameter |
Finding |
Factor E |
|
race |
Black |
1.08 |
|
|
other |
1 |
estimated GFR in mL per min per 1.73 square meter BSA =
= 135 * (((serum creatinine) / (Factors C)) ^ (Factors D)) * (((serum cystatin) / 0.8)) ^ (Factor A)) * (0.995^(age)) * (Factor B) * (Factor E)
Specialty: Nephrology, Clinical Laboratory
ICD-10: ,
