Anemia (Hb < 11 g/100 ml): 13.2% (–10.5–36.8%)Low iron deposits (ferritin <12 μg/L): 52.6% (23.5–81.8%)Microcytosis (MCV <82): 60.5% (31.8–89.2%). This evidence concerns the gene GSTM1 and anemia (phenotype).