Reference measure | Comparative measure | R^{2} | Bias/Precisiona (mL/min) | %Bias/Precisionb | 10% Accuracyc | 15% Accuracyc |
---|---|---|---|---|---|---|

Inulin trapezoidal | Iohexol two‐compartment | 0.93 | −0.02 ± 0.37 | −1.2 ± 16.4 | 55.8 | 69.8 |

Iohexol trapezoidal | 0.97 | 0.04 ± 0.23 | 3.8 ± 11.6 | 73.9 | 82.6 | |

Iohexol one‐compartment | 0.96 | 0.02 ± 0.28 | 0.12 ± 13.24 | 56.5 | 80.4 | |

Inulin two‐compartment | 0.97 | −0.28 ± 0.25 | −19.9 ± 7.51 | 4.3 | 21.9 | |

Inulin one‐compartment | 0.98 | −0.57 ± 0.37 | −26.6 ± 7.3 | 0 | 2.17 | |

Inulin two‐compartment | Iohexol two‐compartment | 0.93 | 0.35 ± 0.35 | 18.5 ± 12.6 | 16.3 | 37.2 |

Iohexol trapezoidal | 0.97 | 0.41 ± 0.25 | 23.3 ± 9.9 | 6.5 | 17.4 | |

Iohexol one‐compartment | 0.96 | 0.39 ± 0.31 | 19.7 ± 10.1 | 13.0 | 37.0 | |

Inulin one‐compartment | 0.99 | −0.49 ± 0.18 | −6.81 ± 5.14 | 74.5 | 91.5 | |

Iohexol trapezoidal | Iohexol two‐compartment | 0.97 | −0.07 ± 0.19 | −5.5 ± 9.5 | 74.4 | 83.7 |

Iohexol one‐compartment | 0.98 | −0.02 ± 0.13 | −3.7 ± 8.0 | 78.3 | 87.0 | |

Iohexol two‐compartment | Iohexol one‐compartment | 0.98 | 0.03 ± 0.16 | 0.9 ± 7.0 | 95.3 | 95.3 |

Each animal (

*N*= 8) at each evaluation (*N*= 6) is an individual data point (*N*= 44–48). Linear regression coefficients (*R*^{2}) weighted 1/*C*^{2}.↵a Bias or absolute bias is calculated as reference method‐comparative method. Precision is the standard deviation of bias.

↵b % Bias is calculated by dividing the absolute bias by the mean of the two measures.

↵c Accuracy is the percentage of sample values with a % bias of <10 or 15.