Table 3.

Bias, precision, and accuracy of renal function equations

Renal Function EquationsPrecisionaBiasbAccuracy (% within Specified Range of Iohexol GFR)
30%50%
a As assessed with the R2 statistic.
b As assessed with the mean prediction error. ml/min per 1.73 m2.
Cockroft-Gault0.17−26.55988
MDRD 10.31−46.02471
MDRD 20.29−41.72882
Jelliffe 10.28−43.33077
Jelliffe 20.26−39.83682
Mawer0.04−15.25380
Bjornsson0.17−23.96289
Gates0.24−38.63586