Table 2: Genotype frequencies for GSTP1, GSTM1, and GSTT1 ( ).

GeneVariationGenotypeFrequency
NumberPercentage

GSTP1 (rs1695)Ile105ValIle/Ile51755.9
Ile/Val and Val/Val40744.1
GSTM1Deletion+/+48452.4
−/−44047.6
GSTT1Deletion+/+28630.9
−/−63869.1
GSTM1 and GSTT1Deletion+/+16117.4
−/+ or +/−44848.5
−/−31534.1