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DOI: 10.1055/s-0036-1593536
Severe Vitamin D Deficiency in Human Immunodeficiency Virus-Infected Pregnant Women is Associated with Preterm Birth
Publication History
18 July 2016
31 August 2016
Publication Date:
07 October 2016 (online)
Abstract
Background Low maternal vitamin D has been associated with preterm birth (PTB). Human immunodeficiency virus (HIV)-infected pregnant women are at risk for PTB, but data on maternal vitamin D and PTB in this population are scarce.
Methods In a cohort of Latin American HIV-infected pregnant women from the National Institute of Child Health and Human Development International Site Development Initiative protocol, we examined the association between maternal vitamin D status and PTB. Vitamin D status was defined as the following 25-hydroxyvitamin D levels: severe deficiency (< 10 ng/mL), deficiency (10–20 ng/mL), insufficiency (21–29 ng/mL), and sufficiency (≥30 ng/mL). PTB was defined as delivery at < 37 weeks' gestational age (GA). Logistic regression was used to assess the association between maternal vitamin D status and PTB.
Results Of 715 HIV-infected pregnant women, 13 (1.8%) were severely vitamin D deficient, 224 (31.3%) were deficient, and 233 were (32.6%) insufficient. Overall, 23.2% (166/715) of pregnancies resulted in PTB (median GA of PTBs = 36 weeks [interquartile range: 34–36]). In multivariate analysis, severe vitamin D deficiency was associated with PTB (odds ratio = 4.7, 95% confidence interval: 1.3–16.8]).
Conclusion Severe maternal vitamin D deficiency is associated with PTB in HIV-infected Latin American pregnant women. Further studies are warranted to determine if vitamin D supplementation in HIV-infected women may impact PTB.
Note
The authors have no financial disclosures to make. The findings and conclusions in this article are those of the authors and do not necessarily represent the views of the National Institutes of Health or the Department of Health and Human Services.
* The members of the NISDI Perinatal Study Group may be found in Appendix.
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