The overall goal of this study is to assess maternal vitamin D status along with diet, and milk composition, and in turn, to evaluate if infant vitamin D status can be improved with increased maternal supplementation and diet education. The central hypothesis is that by maximizing maternal vitamin D status in breastfed, preterm infants (\<35 weeks), there will be an increase infant 25(OH)D status at 1,2, and 3 months of age.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
8
Mothers in experimental group will receive 6,000 IU of vitamin D in addition to their prenatal vitamin, daily for 3 months. Infants in this group will receive placebo vitamin D drops
Mothers in placebo control group will receive 600 IU of vitamin D in the form of their prenatal vitamin along with placebo vitamin D. Infants of the mothers in this group will receive standard 400 IU of vitamin D
MUSC Shawn Jenkins Childrens Hospital
Charleston, South Carolina, United States
Number of Infants With Sufficient 25(OH)D Stores at 3 Months
Number of infants with 25(OH)D levels \> 20 ng/mL
Time frame: 3 months post enrollment
Number of Mothers With Sufficient 25(OH)D Stores at 3 Months
Number of mothers with 25(OH)D levels \>20 ng/mL
Time frame: 3 months post enrollment
Number of Mothers With Elevated Calcium Concentrations at 1 Month
Number of mothers with serum calcium \> 10.5 mg/dL
Time frame: 1 month post enrollment
Number of Mothers With Elevated Calcium Concentrations at Month 2
Number of mothers with serum calcium \> 10.5 mg/dL
Time frame: 2 months post enrollment
Number of Mothers With Elevated Calcium Concentrations at Month 3
Number of mothers with serum calcium \> 10.5 mg/dL
Time frame: 3 months post enrollment
Number of Mothers With Elevated Urine Calcium Creatinine Ratio at Month 1
Number of mothers with serum calcium \> 1.0 mmol/mmol
Time frame: 1 month post enrollment
Number of Mothers With Elevated Urine Calcium Creatinine Ratio at Month 2
Number of mothers with urine calcium/creatinine ratio \> 1.0 mmol/mmol
Time frame: 2 months post enrollment
Number of Mothers With Elevated Urine Calcium Creatinine Ratio at Month 3
Number of mothers with urine calcium/creatinine ratio \> 1.0 mmol/mmol
Time frame: 3 months post enrollment
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Number of Infants With Elevated Calcium Concentration at Month 1
Number of infants with serum calcium \> 11.0 mg/dL
Time frame: 1 month post enrollment
Number of Infants With Elevated Calcium Concentration at Month 2
Number of infants with serum calcium \> 11.0 mg/dL
Time frame: 2 months post enrollment
Number of Infants With Elevated Calcium Concentration at Month 3
Number of infants with serum calcium \> 11.0 mg/dL
Time frame: 3 months post enrollment