Table 3.

Distribution of GSTT1 genotypes in controls, breast cancer patients, and the association analysis with breast cancer risk*.

GSTT1 Polymorphism	Controls (n = 143)	Breast Cancer Patients (n = 118¶)	χ2 Test (p-value)	OR (95% CI)
GSTT1-absent/GSTT1-absent	16 (11%)	25 (21%)	χ2 = 4.88; p=0.03**	2.13 (1.08-4.29)**
GSTT1-present/GSTT1-present & GSTT1-present/GSTT1-absent	127 (89%)	93 (79%)

^* Post-hoc power of the study: 60.1% ^¶ Genotype could not be determined for three samples; **statistically significant.