Table II.

GSTP1 genotypes and allele distribution in breast cancer patients and control subjects.

	Breast cancer patients (n=72)		Controls (n=100)
GSTP1 genotype	n	%	n	%	OR	95% CI	P-value
Ile/Ile	46	63.9	47	47.0	Reference
Ile/Val	19	26.4	41	41.0	2.112	1.071–4.165	0.0297
Val/Val	7	9.7	12	12.0	1.678	0.607–4.639	0.315
Ile/Val + Val/Val	26	36.1	53	53.0	1.995	1.073–3.712	0.0283
Ile frequency	111	77.1	135	67.5
Val frequency	33	22.9	65	32.5	1.619	0.994–2.64	0.052

GSTP1, glutathione S transferase π; OR, odds ratio; CI, confidence interval; Ile, isoleucine; Val, valine.