Table 2

Fitted regression equations for modeling daily dose requirements based on age and VKORC1 and CYP2C9 genotypes

Regression equationPR2 model, %
Model variable    
    Age √D = 0.46 − 0.011(age) < .001 28.3 
    VKORC1 √D = 0.3 − 0.05(VKORC1[AA]) − 0.003 VKORC1[GA].28 3.7 
    CYP2C9 √D = 0.29 − 0.01(CYP2C9.61 0.4 
Full model    
    Age, VKORC1, CYP2C9 √D = 0.49 − 0.013(age) − 0.08(VKORC1AA]) + 0.01(VKORC1[GA]) − 0.02(Cyp2C9< .001 38.2 
Regression equationPR2 model, %
Model variable    
    Age √D = 0.46 − 0.011(age) < .001 28.3 
    VKORC1 √D = 0.3 − 0.05(VKORC1[AA]) − 0.003 VKORC1[GA].28 3.7 
    CYP2C9 √D = 0.29 − 0.01(CYP2C9.61 0.4 
Full model    
    Age, VKORC1, CYP2C9 √D = 0.49 − 0.013(age) − 0.08(VKORC1AA]) + 0.01(VKORC1[GA]) − 0.02(Cyp2C9< .001 38.2 
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