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Maternal vitamin D status and infant anthropometry in a US multi-centre cohort study

Identifieur interne : 002240 ( Main/Exploration ); précédent : 002239; suivant : 002241

Maternal vitamin D status and infant anthropometry in a US multi-centre cohort study

Auteurs : Cara L. Eckhardt [États-Unis] ; Alison D. Gernand [États-Unis] ; Daniel E. Roth [Canada] ; Lisa M. Bodnar [États-Unis]

Source :

Annals of human biology [ 0301-4460 ] ; 2014.

RBID : PMC:4379132

Abstract

Background

Maternal vitamin D status in pregnancy is linked to foetal growth and may impact infant growth.

Aim

This study examined the association between maternal vitamin D status and infant anthropometry.

Subjects and methods

Data came from n = 2473 mother–child pairs from the 12-site US Collaborative Perinatal Project (1959–1965). Maternal serum 25-hydroxyvitamin D (25(OH)D) was measured at ≤26 weeks gestation. Multivariate-adjusted linear mixed models were used to relate maternal vitamin D status to infant z-scores for length (LAZ), head circumference (HCZ), weight (WAZ) and BMI (BMIZ), measured at birth and 4, 8 and 12 months.

Results

Infants with maternal 25(OH)D ≥30 nmol/L vs <30 nmol/L had LAZ and HCZ measures 0.13 (95% CI = 0.03–0.23) and 0.20 (95% CI = 0.11–0.28) units higher, respectively, across the first year of life. Similar differences in WAZ and BMIZ at birth were resolved by 12 months of age due to interactions indicating steeper age slopes in infants with maternal 25(OH)D <30 nmol/L.

Conclusion

Low maternal vitamin D status was associated with deficits at birth in infant weight and BMI that were recouped across the first year of life; associations with reduced measures of linear and skeletal growth were sustained from birth to 12 months.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4379132

DOI: 10.3109/03014460.2014.954616
PubMed: 25268792
PubMed Central: 4379132

Affiliations:

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<sec id="S2"><title>Aim</title>
<p id="P2">This study examined the association between maternal vitamin D status and infant anthropometry.</p>
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<p id="P3">Data came from <italic>n</italic>
 = 2473 mother–child pairs from the 12-site US Collaborative Perinatal Project (1959–1965). Maternal serum 25-hydroxyvitamin D (25(OH)D) was measured at ≤26 weeks gestation. Multivariate-adjusted linear mixed models were used to relate maternal vitamin D status to infant <italic>z</italic>
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Maternal vitamin D status and infant anthropometry in a US multi-centre cohort study

Maternal vitamin D status and infant anthropometry in a US multi-centre cohort study

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