Performance of Cockcroft-Gault, MDRD, and CKD-EPI in estimating prevalence of renal function and predicting survival in the oldest old

Table 1 Formulas of C-G, MDRD and CKD-EPI

	Gender	Serum creatinine*	eGFR (ml/min/1.73 m²)
Cockroft-Gault	Female	All	((140- age) × bodyweight/serum creatinine) × 0.85
	Male	All	(140- age) × bodyweight/serum creatinine
MDRD	Female	All	175 × (serum creatinine/88.4)^{- 1.154} × age^-0.203 × 0.742
	Male	All	175 × (serum creatinine/88.4)^{- 1.154} × age^-0.203
CKD-EPI	Female	≤ 62	144 × (serum creatinine/88.4/0.7)^-0.329 × (0.993)^age
	Female	> 62	144 × (serum creatinine/88.4/0.7)^-1.209 x (0.993)^age
	Male	≤ 80	141 × (serum creatinine/88.4/0.7)^-0.411 × (0.993)^age
	Male	> 80	141 × (serum creatinine/88.4/0.7)^{- 1.209} × (0.993)^age

*Serum creatinine is stated in μmol/L.
Abbreviations: eGFR estimated glomerular filtration rate, MDRD modification of diet in renal disease formula, CKD-EPI chronic kidney disease epidemiology equation.
Because all our individuals were of the Caucasian race the multiplier factor for race was not applied.

ISSN: 1471-2318