Vitamin D Deficiency Among Women in Labor and Cord Blood of Newborns.

25-hydroxy Vitamin D levels of 106 maternal blood samples and cord blood levels of their newborns were studied. Maternal mean (SD) vitamin D level was 16.3 (10.3) ng/mL, and mean (SD) cord blood level was 12.8 (8.5) ng/mL. Seventy-five (70.7% mothers (70.7%) and 88 (83%) newborns had hypovitaminosis- D. Seventy (93.3%) newborns of mothers with hypovitaminosis-D had low vitamin D levels. There was a strong correlation between maternal and newborn Vitamin D levels (r=0.6; P<0.001). There is a high prevalence of hypovitaminosis D in women in labor and their newborns.