highly significantp = 0.0001
Smoking women having either CC or GG genotypes showed a highly significant association with increased risk of breast cancer [odds ratio (OR) = 1.607, 95% confidence interval (CI) 0.91–1.64, p = 0.0001, and OR, 1.841, 95% CI, 0.88–1.67, p = 0.0001, respectively].