Evidence map›Paper›PMID 30901325›Full record

SynthesisPloS one2019

Efficacy of vitamin D supplementation in gestational diabetes mellitus: Systematic review and meta-analysis of randomized trials.

Meline Rossetto Kron Rodrigues, Silvana Andréa Molina Lima, Glaucia Maria Ferreira da Silvia Mazeto, Iracema Mattos Paranhos Calderon, Claudia Garcia Magalhães, Guilherme Augusto Rago Ferraz, Ana Claúdia Molina, Roberto Antônio de Araújo Costa, Vania Dos Santos Nunes Nogueira, Marilza Vieira Cunha Rudge

Open access · goldAbstract readComparative StudyMeta-AnalysisSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 8 pooled it
5.6field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 8 syntheses or guidelines pooled it, 43 citations in OpenAlex.

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  6. Supplementation of Vitamin D in the Postdelivery Period of Women with Previous Gestational Diabetes Mellitus: Systematic Review and Meta-Analysis of Randomized Trials.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2021
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  17. Vitamin D deficiency 2.0: an update on the current status worldwide.European journal of clinical nutrition · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Meline Rossetto Kron RodriguesDepartment of Gynecology and Obstetrics, São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil.ORCID 0000-0003-2174-268X
Silvana Andréa Molina LimaNursing Department, São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil.
Glaucia Maria Ferreira da Silvia MazetoDepartment of Internal Medicine, São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil.
Iracema Mattos Paranhos CalderonDepartment of Gynecology and Obstetrics, São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil.
Claudia Garcia MagalhãesDepartment of Gynecology and Obstetrics, São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil.
Guilherme Augusto Rago FerrazDepartment of Gynecology and Obstetrics, São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil.
Ana Claúdia MolinaMunicipal Authority of Botucatu, São Paulo, Brazil.
Roberto Antônio de Araújo CostaDepartment of Gynecology and Obstetrics, São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil.
Vania Dos Santos Nunes NogueiraDepartment of Internal Medicine, São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil.
Marilza Vieira Cunha RudgeDepartment of Gynecology and Obstetrics, São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil.
Universidade Estadual Paulista (Unesp) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTrials have examined on the benefits of vitamin D supplementation in pregnant women.

objectiveThis review aimed to evaluate whether oral vitamin D supplements, when given to pregnant women with gestational diabetes mellitus (GDM), would improve maternal and neonatal outcomes, compared with no treatment or placebo.

methodWe performed a systematic review following Cochrane methodology, and randomized trials were included where pregnant women with GDM received vitamin D supplementation versus placebo/no treatment or vitamin D and calcium versus placebo/no treatment. Primary outcomes were preeclampsia, preterm birth, cesarean delivery, gestational hypertension, and adverse events related to vitamin D supplementation. The search strategies were applied to the following databases: MEDLINE, Embase, LILACS, and CENTRAL. Similar outcomes in at least two trials were plotted using Review Manager 5.3 software. The quality of evidence was generated according to the Grading of Recommendations Assessment, Development, and Evaluation (GRADE).

resultsThe total of 1224 references were identified, eleven trials were potentially eligible, and six were included in this review (totaling 456 women). The meta-analysis of frequency of cesarean deliveries did not show significant differences between groups, none of the trials evaluated the remaining primary outcomes. For secondary outcomes, our results suggest that vitamin D supplementation in pregnant women with GDM may reduce newborn complications such as hyperbilirubinemia, polyhydramnios (RR: 0.40, 95% CI: 0.23 to 0.68; RR: 0.17, 95% CI: 0.03 to 0.89; respectively), and the need for maternal or infant hospitalization (RR: 0.13; 95% CI: 0.02 to 0.98; RR: 0.40, 95% CI: 0.23 to 0.69). However, the evidence was of low or very low quality.

conclusionWe did not find moderate or high quality evidence indicating that vitamin D supplementation, when compared with placebo, improves glucose metabolism, adverse maternal and neonatal outcomes related to GDM in pregnant women.

Indexed as

Dietary SupplementsCesarean SectionDiabetes, GestationalFemaleHospitalizationHumansInfant HealthInfant, NewbornInfant, Newborn, DiseasesMaternal HealthPlacebosPregnancyPremature BirthRandomized Controlled Trials as TopicTreatment OutcomeVitamin DPlacebosVitamin D

Identifiers

PMID30901325
PMCPMC6430411
OpenAlexW2940508349

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.