Comparison of Three Glomerular Filtration Rate Estimating Equations with 24-Hour Urine Creatinine Clearance Measurement in Potential Living Kidney Donors

Table 1

Definition of estimation methods.

Estimation method	Equation
MDRD	175 × creatinine [mg/dl]^−1.154 × age [years]^−0.203 × 0.742 [if female]
CKD-EPI	141 × min {creatinine/k, 1}^α × max {creatinine/k, 1}^−1.209 × 0.993^age [years] × 1.018 [if female] _ 1.159 [if black] where k is 0.7 for females and 0.9 for males, α is −0.329 for females and −0.411 for males
CG	((140 − age (years)) × body weight (kg))/creatinine [μmol/l] × 0.85 [if female]

Equations for estimating renal function based on serum creatinine. MDRD: modification of diet in renal disease, CKD-EPI: chronic kidney disease epidemiology collaboration; CG: Cockcroft–Gault.