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. 2008 Feb 4;111(8):4106–4112. doi: 10.1182/blood-2007-11-122010

Table 3.

Explained variation in therapeutic warfarin dose pooled models

Predictor/predictor group Adjusted R2
Clinical only 0.17
Clinical plus CYP2C9 and VKORC1 0.54
Clinical plus CYP2C9 and VKORC1 and CYP4F2 0.56

Clinical variables were sex, age, body surface area, and target international normalized ratio.