Since four regression models were evaluated in this analysis (anemia with MDS-ADL, anemia with MDS-HSI, Hb range with MDS-ADL, Hb range with MDS-HSI) the familywise error rate was maintained as a further sensitivity test by recalculating the individual test type I error rate to α/n = 0.0125. This evidence concerns the gene GSTM1 and anemia (phenotype).