Evidence map›Paper›PMID 31041446›Full record

SynthesisAdvances in nutrition (Bethesda, Md.)2019

Maternal Dietary Patterns and Birth Outcomes: A Systematic Review and Meta-Analysis.

Ai-Ru Chia, Ling-Wei Chen, Jun Shi Lai, Chun Hong Wong, Nithya Neelakantan, Rob Martinus van Dam, Mary Foong-Fong Chong

Abstract readMeta-AnalysisSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Advances in nutrition (Bethesda, Md.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 164 papers, 19 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
164citing papers in PubMed, 19 pooled it
–field-weighted citation impact
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

164 citing papers in PubMed, 19 syntheses or guidelines pooled it.

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  17. Dietary Patterns during Pregnancy and Gestational Weight Gain: A Systematic Review.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
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  20. Pregnancy diet based on ancestral patterns increases growth in subcortical fetal brain regions.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Trial

104 more citing papers are in PubMed but not listed here.

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

7 authors.

Ai-Ru ChiaDepartments of Obstetrics & Gynecology.
Ling-Wei ChenDepartments of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Jun Shi LaiSingapore Institute for Clinical Sciences, Agency for Science, Technology, and Research, Singapore.
Chun Hong WongSingapore Institute for Clinical Sciences, Agency for Science, Technology, and Research, Singapore.
Nithya NeelakantanSaw Swee Hock School of Public Health, National University of Singapore, Singapore.
Rob Martinus van DamDepartments of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Mary Foong-Fong ChongSingapore Institute for Clinical Sciences, Agency for Science, Technology, and Research, Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Findings on the relations of maternal dietary patterns during pregnancy and risk of preterm birth and offspring birth size remain inconclusive. We aimed to systematically review and quantify these associations. We searched MEDLINE, Embase, CENTRAL, and CINAHL up to December 2017. Three authors independently conducted a literature search, study selection, data extraction, and quality assessment. Summary effect sizes were calculated with random effects models and studies were summarized narratively if results could not be pooled. We included 36 studies and pooled results from 25 observational studies (167,507 participants). Two common dietary patterns-"healthy" and "unhealthy"-were identified. Healthy dietary patterns-characterized by high intakes of vegetables, fruits, wholegrains, low-fat dairy, and lean protein foods-were associated with lower risk of preterm birth (OR for top compared with bottom tertile: 0.79; 95% CI: 0.68, 0.91; I2 = 32%) and a weak trend towards a lower risk of small-for-gestational-age (OR: 0.86; 95% CI: 0.73, 1.01; I2 = 34%). Only statistically data-driven healthy dietary patterns, and not dietary index-based patterns, were associated with higher birth weight (mean difference: 67 g; 95% CI: 37, 96 g; I2 = 75%). Unhealthy dietary patterns-characterized by high intakes of refined grains, processed meat, and foods high in saturated fat or sugar-were associated with lower birth weight (mean difference: -40 g; 95% CI: -61, -20 g; I2 = 0%) and a trend towards a higher risk of preterm birth (OR: 1.17; 95% CI: 0.99, 1.39; I2 = 76%). Data from observational studies indicate that greater adherence to healthy dietary patterns during pregnancy is significantly related to lower risk of preterm birth. No consistent associations with birth weight and small- or large-for-gestational-age were observed.

Indexed as

Birth WeightDietFeeding BehaviorMaternal Nutritional Physiological PhenomenaPremature BirthAdultDiet, HealthyFemaleGestational AgeHumansInfant, Low Birth WeightInfant, NewbornObservational Studies as TopicPregnancyRisk FactorsYoung Adultbirth weightdietary patterndiet qualitymaternal dietpreterm birth

Identifiers

PMID31041446
PMCPMC6628847

What Socratic holds

Textmetadata
LicenceCC BY-NC
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 Socratic graph.