GSTM1 and anemia (phenotype): The median (IQR) neonatal Hb was 16.7 g/dL (14.9, 18.0) and did not differ by sex, but it was lower among infants of mothers with vs. without delivery anemia (15.9 vs. 17.1, p = 0.032) and those identifying as Black vs. Hispanic or other (16.0, 17.9, 17.0, respectively; p = 0.003).