Table 2. Association between cortical cataract and combination of GSTM1 and GSTT1 genotypes.

GSTM1	GSTT1	Patients with ARC (%)	Controls (%)	PC	OR (95% CI)
Positive	Positive	109 (25.8%)	81 (26.0%)	0.008	1.76 (1.15–2.67)
Positive	Null	137 (32.5%)	58 (18.6%)
Null	Positive	92 (21.8%)	93 (29.8%)
Null	Null	84 (19.9%)	70 (22.4%)

GST, glutathione S-transferase; OR, odds ratio; Pc, Bonferroni corrected p value.