GSTM1 and breast cancer: They were 70 patients with BC and 25 control group of healthy females; their mean age in years ± S.E.M. was 50.01 ± 1.46 and 49.8 ± 2.38, respectively, with no significant differences, while a significant difference was reported between the two groups regarding BMI, hemoglobin (Hb), and platelet count.