Mean maternal age: 27.56 ± 6.05 SD, mean gestational age at delivery: 38.24± 2.88 SD, mean birth weight was 3.133 ± 683 gr SD, mean Hb: 11.59 gr/dl, maximum Hb: 16.4 gr/dl, minimum Hb:5.9 gr/dl, the prevalence of anemia was % 25.12 in our study. Here, GSTM1 is linked to anemia (phenotype).