Genotype

Number (%)

CYP2E1

5_-Flanking RsaI/PstI

c1/c1

c1/c2

c2/c2

37 (66.07)

18 (32.14)

1 (1.79)

CYP2E1

intron 6 DraI

D/D

C/D

39 (70.16)

17 (29.84)

EPHX1

Exon 3

Tyr/Tyr

Tyr/His

His/His

15 (26.79)

30 (53.57)

11 (19.64)

EPHX1

Exon 4

His/His

His/Arg

32 (57.14)

24 (42.86)

EPHX1

Predicted activity*

Low activity

Medium activity

High activity

27 (48.21)

19 (33.93)

10 (17.86)

GSTM1

Positive

Null

22 (39.29)

34 (60.71)

GSTT1

Positive

Null 34

30 (53.57)

26 (46.43)