Research Article

Maternal-Cord Blood Vitamin D Correlations Vary by Maternal Levels

Table 3

Spearman correlations between prenatal 25(OH)D and cord blood 25(OH)D.


All children0.75<0.001

Baby is Black0.65<0.001
Baby is White0.87<0.001

Baby is firstborn0.78<0.001
Baby is not firstborn0.75<0.001

Winter birth0.81<0.001
Nonwinter birth0.74<0.001

Maternal prenatal 25(OH)D <40 ng/mL0.71<0.001
Maternal prenatal 25(OH)D ≥40 ng/mL0.65<0.001

Maternal prenatal 25(OH)D <20 ng/mL0.290.004
Maternal prenatal 25(OH)D ≥20 ng/mL0.73 <0.001

Maternal prenatal 25(OH)D <15 ng/mL0.160.22
Maternal prenatal 25(OH)D ≥15 ng/mL0.77<0.001

Maternal BMI at 1st prenatal visit <30 kg/m20.78<0.001
Maternal BMI at 1st prenatal visit ≥30 kg/m20.78<0.001

Maternal BMI at 1st prenatal visit <35 kg/m20.79<0.001
Maternal BMI at 1st prenatal visit ≥35 kg/m20.70<0.001

Preterm birth (<37 weeks)0.540.015
Full term birth (≥37 weeks)0.77<0.001

Low birth weight (≤2500 g)0.430.08
Not low birth weight (>2500 g)0.77<0.001

Baby born vaginally0.78<0.001
Baby born via c-section0.71<0.001

Mother is atopic0.73<0.001
Mother is not atopic0.78<0.001