TABLE 3

Parameter estimates of the final population pharmacokinetic model for fentanyl and the stability of the parameters using the bootstrap resampling procedure



Original Data Set

1000 Bootstrap Replicates

Estimate
% CV
Estimate
% CV
Structural model
    Cl (ml/min) 16.6 5.3 16.6 5.1
    V1 (ml) 303 7.6 303 7.7
    V2 (ml) 429 7.1 430 6.8
    Q (ml) 7.04 9.8 7.07 9.6
Interanimal variability
    ωCl (%) 28.9 26.1 28.3 26.2
    ωV1 (%) 40.9 53.8 40.8 56.3
    ωV2 (%) 35.1 31.1 33.7 31.8
    ωQ (%) 45.4 34.2 43.7 35.1
Residual variability
    Proportional error %
18.2
23.8
18.3
24.6
  • CV, coefficient of variation.