GSTM1 and anemia: The Hb (86.17 ± 5.41 g/L vs. 197.70 ± 8.41 g/L, p < 0.05) and HCT (0.278 ± 0.02 vs. 0.579 ± 0.02, p < 0.05) levels in the newborns of the anemia group were significantly lower than those in the control group.