Table 2.

Allele frequency of CYP2C9 *2 and CYP2C9 *3 in patients with epilepsy

Study	Number of cases	Country population	*2 frequency (%)	*3 frequency (%)
Hashimoto et al86	17	Japanese	0	11.8
Odani et al87	44	Japanese	0	13.6
Soga et al29	28	Japanese	0	10.7
Twardowschy et al88	100	Brazilians	9	7.0
Chaudhary et al60	89	Indians	4.5	10.1