Mean CrCl/GFR^{b} (Range) | Mean Absolute Difference | Median Absolute Difference | Median % Absolute Difference | Bias^{c} | R^{2}^{d} (Precision) | Pearson Correlation | Accuracy % within | ||
---|---|---|---|---|---|---|---|---|---|

30% | 50% | ||||||||

^{a} CrCl, creatinine clearance; CG, Cockcroft-Gault; MDRD, Modification of Renal Disease. | |||||||||

^{b} Mean calculated CrCl or GFR expressed as mean ± SD (range). | |||||||||

^{c} Bias is the mean prediction error:where pe_{i} = predicted value - true value and N = sample size. | |||||||||

^{d} R^{2} statistic was derived by simple linear regression and reflects the predictive ability of the model. | |||||||||

^{e} Adjusted for BSA of 1.73 m^{2}. | |||||||||

^{f} Expressed as ml/min per 1.73 m^{2}. | |||||||||

CG^{e} | 129.6 ± 48.8 | 37.9 | 26.7 | 23% | 16.8 | 0.06 | 0.24 | 58% | 79% |

(50.1–288.5) | |||||||||

CG-GFR^{e} | 108.9 ± 41 | 32.9 | 30.5 | 25% | −4.0 | 0.06 | 0.25 | 59% | 83% |

(42.1–242.3) | |||||||||

MDRD 1^{f} | 97.6 ± 25 | 32.9 | 30.6 | 25% | −15.2 | 0.03 | 0.17 | 69% | 96% |

(55.8–201.1) | |||||||||

MDRD 2^{f} | 94.5 ± 25.0 | 28.7 | 23.5 | 22% | −18.3 | 0.02 | 0.15 | 65% | 95% |

(50.3–184.9) | |||||||||

Jelliffe 1^{e} | 92.3 ± 22.1 | 26.0 | 26.5 | 23% | −13.2 | 0.05 | 0.23 | 67% | 96% |

(55.3–176.0) | |||||||||

Jelliffe 2 | 96.8 ± 22.2 | 26.0 | 19.0 | 17% | −16.0 | 0.01 | 0.25 | 67% | 95% |

(59.7–188.0) | |||||||||

Mawer | 141.6 ± 66.0 | 49.6 | 35.4 | 30% | 28.7 | 0.07 | 0.26 | 50% | 72% |

(40.9–396.7) | |||||||||

Bjornsson | 122.5 ± 37.3 | 29.5 | 24.8 | 23% | 9.7 | 0.08 | 0.28 | 66% | 86% |

(58.2–290.5) | |||||||||

Gates | 94.4 ± 24.9 | 28.8 | 25.4 | 25% | −18.4 | 0.02 | 0.14 | 66% | 95% |

(50.3–207.3) | |||||||||

Corcoran-Salazar | 114.5 ± 29.1 | 26.1 | 20.9 | 19% | 1.7 | 0.04 | 0.21 | 76% | 92% |

(56.7–199.4) |