Wegienka G, Kaur H, Sangha R, and Cassidy-Bushrow AE. Maternal-cord blood vitamin d correlations vary by maternal levels. J Pregnancy 2016; 2016:7474192.
Vitamin D levels of pregnant women and their neonates tend to be related; however, it is unknown whether there are any subgroups in which they are not related. 25-Hydroxyvitamin D [25(OH)D] was measured in prenatal maternal and child cord blood samples of participants (n = 241 pairs) in a birth cohort. Spearman correlations were examined within subgroups defined by prenatal and delivery factors. Cord blood as a percentage of prenatal 25(OH)D level was calculated and characteristics compared between those who did and did not have ≥25% and ≥50% of the maternal level and those who did and did not have a detectable 25(OH)D level. The correlation among Black children was lower than in White children. When the maternal 25(OH)D level was/mL, the overall correlation was r = 0.16. Most children had a 25(OH)D cord blood level less than half of their mother's; 15.4% had a level that was
Medical Subject Headings
Adult; African Americans; Cholecalciferol; Cohort Studies; Ergocalciferols; European Continental Ancestry Group; Female; Fetal Blood; Humans; Michigan; Obesity; Pregnancy; Pregnancy Complications; Pregnancy Trimester, Third; Seasons; Vitamin D; Vitamin D Deficiency; Young Adult