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. 2010 Jun;5(6):1003–1009. doi: 10.2215/CJN.06870909

Table 2.

Comparison of the estimation of the formulas to the gold standard GFR

Parameter Mean Overall Bias Overall Precision Mean Absolute Bias Absolute Precision Accuracy within 30% (%)
Cockcroft-Gault 9.9 19.2 15.3 15.2 74.2
MDRD 0.8a 24.7 14.6 19.9 81.2
CKD-EPI 4.5 16.7 12.3a 12.1 84.5b

See the Materials and Methods section for definitions of (absolute) bias, precision, and accuracy.

a

P ≤ 0.01 versus both other formulas.

b

P < 0.01 versus Cockcroft-Gault, P = 0.14 versus MDRD.