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Iranian Journal of Reproductive Medicine
Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences of Yazd
ISSN: 1680-6433
EISSN: 2008-2177
Vol. 13, No. 11, 2015, pp. 687-696
Bioline Code: rm15088
Full paper language: English
Document type: Research Article
Document available free of charge

Iranian Journal of Reproductive Medicine, Vol. 13, No. 11, 2015, pp. 687-696

 en The effects of vitamin D supplementation on maternal and neonatal outcome: A randomized clinical trial
Mojibian, Mahdieh; Soheilykhah, Sedigheh; Zadeh, Mohammad Ali Fallah & Moghadam, Maryam Jannati

Abstract

Background: Vitamin D supplementation during pregnancy has been supposed to defend against adverse gestational outcomes.
Objective: This randomized clinical trial study was conducted to assess the effects of 50,000 IU of vitamin D every two weeks supplementation on the incidence of gestational diabetes (GDM), gestational hypertension, preeclampsia and preterm labor, vitamin D status at term and neonatal outcomes contrasted with pregnant women that received 400 IU vitamin D daily.
Materials and Methods: 500 women with gestational age 12-16 weeks and serum 25 hydroxy vitamin D (25 (OH) D ) less than 30 ng/ml randomly categorized in two groups. Group A received 400 IU vitamin D daily and group B 50,000 IU vitamin D every 2 weeks orally until delivery. Maternal and Neonatal outcomes were assessed in two groups.
Results: The incidence of GDM in group B was significantly lower than group A (6.7% versus 13.4%) and odds ratio (95% Confidence interval) was 0.46 (0.24-0.87) (P=0.01). The mean ± SD level of 25 (OH) D at the time of delivery in mothers in group B was significantly higher than A (37.9 ± 19.8 versus 27.2 ± 18.8 ng/ml, respectively) (P=0.001). There were no differences in the incidence of preeclampsia, gestational hypertension, preterm labor, and low birth weight between two groups. The mean level of 25 (OH) D in cord blood of group B was significantly higher than group A (37.9 ± 18 versus 29.7 ± 19ng/ml, respectively). Anthropometric measures between neonates were not significantly different.
Conclusion: Our study showed 50,000 IU vitamin D every 2 weeks decreased the incidence of GDM.

Keywords
Vitamin D; Pregnancy outcome; Gestational diabetes

 
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Alternative site location: http://www.ijrm.ir

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