Two equations are primarily used to estimate GFR: the MDRD
and CKD Epidemiology Collaborative (CKD-EPI) equations.
In addition, some studies indicate that cysC is a more sensitive predictor of CV morbidity than the measured GFR, as well as the calculated GFR using the MDRD
A newer equation, the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula, has also been proven to be equally effective as the MDRD
equation and may actually be better at measuring GFRs > 60 ml/min/1.73 [m.sup.2].
GFR was furthermore calculated using six estimating formulae, Cockcroft-Gault formula , the modification of diet in renal disease (MDRD
) equations using 4 and 6 variables [26, 27], and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations using creatinine alone (CKD-EPI Cr) , CysC alone (CKD-EPI CysC), or both CKD-EPI (Cr-CysC)  (Table 1).
Both HIVMA and New York State lean toward the Chronic Kidney Disease Epidemiology Consortium (CKD-EPI) equation, which may be more accurate than MDRD
for people with HIV.
(6.) Levey AS, Greene T, Kusek JW, Beck GL, MDRD
Abbreviations CIN: Contrast induced nephropathy ICM: Iodinated contrast media CT: Computed tomography AKI: Acute kidney injury eGFR: estimated glomerular filtration rate Cr: Creatinine NAC: n-Acetylcysteine MDRD
: Modified diet in renal disease RIS: The Radiology Information System.
Hereafter, there was partial renal function recovery (eGFR (MDRD
) of 10 mL/min/1.73 [m.sup.2]), after which mastectomy was performed without cessation of anticoagulant therapy.
Calculator for Adults 2012 2/11/2013 [cited; Available from: http://www.nkdep.nih.gov/lab-evaluation/gfr-calculators/ adults-conventional-unit.shtml]
We compare the reported eGFR values to expected values calculated using the 4-parameter MDRD
equation, defining an acceptable participant result to be within [+ or -]1 mL/min per 1.73 [m.sup.2] of the expected value.
GFR prediction using the MDRD
and Cockcroft and Gault equations in patients with end-stage renal disease.