SHI Xiaoxia,WANG Weina,LI Rui,et al.Meta-analysis of the effects of different doses of vitamin D supplementation on maternal and infant outcomes in vitamin D-deficient pregnant women[J].ZHONGGUO YAOFANG,2026,37(09):1215-1221.
SHI Xiaoxia,WANG Weina,LI Rui,et al.Meta-analysis of the effects of different doses of vitamin D supplementation on maternal and infant outcomes in vitamin D-deficient pregnant women[J].ZHONGGUO YAOFANG,2026,37(09):1215-1221. DOI: 10.6039/j.issn.1001-0408.2026.09.19.
Meta-analysis of the effects of different doses of vitamin D supplementation on maternal and infant outcomes in vitamin D-deficient pregnant women
To systematically evaluate the effects of supplementation with different doses of vitamin D on maternal and infant outcomes in vitamin D-deficient pregnant women.
METHODS
2
Related literature on the effects of supplementing different doses of vitamin D on maternal and infant outcomes was searched in databases including CNKI, Wanfang Data, VIP, PubMed, Medline, the Cochrane Library, Embase from their inception to June 30, 2025. The risk of bias assessment tool from the Cochrane Handbook 5.1 was used to evaluate the quality of included literature. Meta-analysis of outcome indicators was performed by using RevMan 5.4 software.
RESULTS
2
A total of 15 studies were included, involving 4 664 patients [2 129 in the experimental group (daily dose >2 000 IU), 2 058 in control group 1 (daily dose ≤1 000 IU) and 477 in control group 2 (daily dose >1 000-≤2 000 IU)
]
. Meta-analysis results showed that the incidence of preeclampsia (PE) [OR=0.71, 95%CI (0.53, 0.96),
, low birth weight of newborn [OR=0.72, 95%CI (0.53, 0.97),
P
=0.03
]
and macrosomia [OR=0.53, 95%CI (0.29, 0.98),
P
=0.04
]
in the experimental group were significant lower than control group 1; but there was no significant difference in the incidence of premature delivery [OR=0.86, 95%CI (0.65, 1.13),
P
=0.28
]
, cesarean delivery [OR=0.92, 95%CI (0.74, 1.15),
P
=0.48
]
or stillbirth rate [OR=0.77, 95%CI (0.48, 1.24),
P
=0.29
]
. The incidence of low birth weight of ne
wborn [OR=0.64, 95%CI (0.41, 0.98),
P
=0.04
]
in the experimental group was significant lower than control group 2; but there was no significant difference in the incidence of PE [OR=0.61, 95%CI (0.25, 1.49),
P
=0.28
]
, the incidence of GDM [OR=0.73, 95%CI (0.42, 1.24),
, or stillbirth rate [OR=0.68, 95%CI (0.24, 1.94),
P
=0.48
]
.
CONCLUSIONS
2
Different doses of vitamin D supplementation in early pregnancy have a significant impact on maternal and infant pregnancy outcomes in vitamin D-deficient pregnant women; daily doses >2 000 IU have significant advantages in reducing the incidence of PE and GDM and improving the outcome of premature delivery.
关键词
Keywords
references
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