Anemia (Hb < 11 g/100 ml): 1.63 (0.68–3.89)Low iron deposits (ferritin <12 μg/L): 4.33 (1.92–9.77)Microcytosis (MCV <82): 6.75 (2.73–16.70). This evidence concerns the gene GSTM1 and anemia.