Table 1.

CYP2C9 and VKORC1 alleles.

Gene	Polymorphism	Allele count	Frequency %	Single gene carrier	Non-carrier
CYP2C9 Multiplex				27.67%
	*1/*1	80	71.4
	*1/*2	12	11
	*1/*3	9	8		30.3%
	*2/*2	2
VKORC1				42.86%
	−1639A	50	45