A two-tailed t-test for independent samples (equal variances not assumed) showed that the difference between positive and negative AR expression with respect to the dependent variable Predict Breast cancer 10 year (overall survival %) was not statistically significant, t (28.75) = 1.54, P = 0.135, 95% CI [−2.65, 18.63]. This evidence concerns the gene AR and breast carcinoma.