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Title: [Effects of vitamin D supplementation in early pregnancy on high-risk groups of gestational diabetes mellitus].
Author: Zhao Y, Teng Y, Wang J, Yang Z, Dong S, Hu J, Zhang Y, Lai J.
Journal: Wei Sheng Yan Jiu; 2019 Mar; 48(2):226-231. PubMed ID: 31133099.
Abstract:
OBJECTIVE: To investigate the effect of vitamin D supplementation(VD) in early pregnancy on the serum 25-hydroxyvitamin D(25-OH-D) level and the risk of gestational diabetes mellitus(GDM). METHODS: From October to December 2017, a total of 101 pregnant women with high risk factors for GDM were enrolled in the first pregnancy consultation at the nutrition clinic of Haidian Maternal and Child Health Hospital, and were randomly divided into intervention group and control group. The intervention group was supplemented with 700 U VD and 100 mg of calcium at the beginning of pregnancy, and the control group was supplemented with 100 U VD and 100 mg of calcium at the same time, and the intervention time was until delivery. RESULTS: After intervention, the mean serum 25-OH-D level in the intervention group was(92. 08±29. 69) nmol/L, and that in the control group was(69. 99±25. 10) nmol/L. The serum levels of 25-OH-D in the pregnant women, gestational age and cord blood were higher than those in the control group(P<0. 05). The incidence of GDM in the intervention group was 18. 37%, and the incidence rate in the control group was 28. 85%(P>0. 05). Compared with the control group, the OR value of the risk of GDM in the intervention group was 0. 56(95% CI 0. 22-1. 42)( P<0. 05). CONCLUSION: The supplementation of VD in early pregnancy can significantly improve the VD nutrition level of pregnant women, but does not significantly reduce the incidence of GDM.

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