SynthesisActa obstetricia et gynecologica Scandinavica2022
Multivitamin use and risk of preeclampsia: A systematic review and meta-analysis.
Synthesis in Acta obstetricia et gynecologica Scandinavica, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.
- Association between migraine, migraine subtype, and adverse pregnancy outcomes: A systematic review and meta-analysis.Acta obstetricia et gynecologica Scandinavica · 2025Pooled it
- Multivitamin use and risk of preeclampsia: A systematic review and meta-analysis.Acta obstetricia et gynecologica Scandinavica · 2022Pooled it
- Effects of multivitamin combined with magnesium sulfate versus magnesium sulfate alone on hemodynamics, coagulation, and maternal-infant outcomes in preeclampsia: a randomized controlled study.Journal of health, population, and nutrition · 2025Trial
- Nutritional supplements for preventing preeclampsia: A network meta-analysis.The Indian journal of medical research · 2026Article
- A retrospective analysis of BMI/TP ratio and its predictive role in gestational hypertension outcomes.Medicine · 2025Observational
- Maternal Folic Acid Supplement Use, Folate Intake, and Preterm Birth Among Infants With Spina Bifida.Birth defects research · 2025Article
- Pregnancy Metal Mixtures and Blood Pressure and Hypertension in Mid-Life: A Prospective U.S. Cohort Study.Hypertension (Dallas, Tex. : 1979) · 2025Article
- Dietary supplements and prevention of preeclampsia.Hypertension research : official journal of the Japanese Society of Hypertension · 2025Review
- Reply: Multivitamin use may lower risk of preeclampsia: A meta-analysis.Acta obstetricia et gynecologica Scandinavica · 2022Article
- Multivitamin use may lower risk of preeclampsia: A meta-analysis.Acta obstetricia et gynecologica Scandinavica · 2022Article
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionPreeclampsia is associated with adverse maternal and neonatal outcomes. It is unclear whether multivitamin use reduces the risk of preeclampsia. This systematic review and meta-analysis aimed to evaluate the association between multivitamin use and the risk of preeclampsia. MATERIAL AND
methodsWe searched PubMed, Embase and the Cochrane Library from database inception to July 2021. Randomized controlled trials (RCTs), case-control and cohort studies assessing the association between multivitamin use and risk of preeclampsia were eligible. Studies of treatment with a single micronutrient were excluded. Relative risks and 95% confidence intervals (95% CI) were calculated using random-effects models. RoB2, the Newcastle Ottawa Scale and GRADE were used to assess risk of bias and quality of evidence. The protocol was registered in PROSPERO (no. CRD42021214153).
resultsSix studies were included (33 356 women). Only two RCTs were found, both showing a significantly decreased risk of preeclampsia in multivitamin users. These studies were not compatible for meta-analysis due to clinical heterogeneity. A meta-analysis of observational studies using a random-effects model showed an unchanged risk of preeclampsia following multivitamin use (relative risk 0.85, 95% CI 0.69-1.03). The quality of evidence according to GRADE was very low.
conclusionsVery weak evidence suggests that multivitamin use might reduce the risk of preeclampsia; however, more research is needed. Large RCTs should be prioritized. The results of this review do not allow any final conclusions to be drawn regarding a preventive effect of multivitamin use in relation to preeclampsia.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.