Evidence map›Paper›PMID 30993847›Full record

ArticleDiabetes, obesity & metabolism2019

Vitamin D status during pregnancy and the risk of gestational diabetes mellitus: A longitudinal study in a multiracial cohort.

Jin Xia, Yiqing Song, Shristi Rawal, Jing Wu, Stefanie N Hinkle, Michael Y Tsai, Cuilin Zhang

Open access · hybridAbstract read
In one paragraph

Article in Diabetes, obesity & metabolism, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
4.9field-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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

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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

7 authors at 5 institutions in 1 country.

Jin XiaDepartment of Epidemiology, Richard M. Fairbanks School of Public Health, Indiana University, Indianapolis, Indiana.
Yiqing SongDepartment of Epidemiology, Richard M. Fairbanks School of Public Health, Indiana University, Indianapolis, Indiana.ORCID 0000-0002-2097-7332
Shristi RawalEpidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland.
Jing WuGlotech Inc., Rockville, Maryland.
Stefanie N HinkleEpidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland.
Michael Y TsaiDepartment of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, Minnesota.
Cuilin ZhangEpidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland.ORCID 0000-0002-8014-2708
National Institutes of Health · USRichard M. Fairbanks Foundation · USGlotech (United States) · USRutgers, The State University of New Jersey · USUniversity of Minnesota Medical Center · US

Funding

The National Standard for Normal Fetal GrowthZIAHD008852 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI GRANTZ, KATHERINE · 2009 to 2025
$5.6M
Pathogenesis of Gestational DiabetesZIAHD008887 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI YEUNG, EDWINA · 2009 to 2022
$2.3M
Racial/Ethnic Differences in 25(OH)D and PTH Levels and CVD among WomenR01HL113056 · NHLBI · INDIANA UNIVERSITY INDIANAPOLIS · PI SONG, YIQING · 2013 to 2016
$1.8M
Intramural NIH HHS Z99 HD999999Intramural NIH HHS ZIA HD008852Intramural NIH HHS ZIA HD008887NHLBI NIH HHS R01 HL113056NICHD NIH HHS HHSN275200800002CNICHD NIH HHS HHSN275200800002INICHD NIH HHS HHSN275200800003CNICHD NIH HHS HHSN275200800003INICHD NIH HHS HHSN275200800012CNICHD NIH HHS HHSN275200800013CNICHD NIH HHS HHSN275200800014CNICHD NIH HHS HHSN275200800028CNICHD NIH HHS HHSN275201000001GNICHD NIH HHS HHSN275201000001ZNICHD NIH HHS HHSN275201000009C
6 · The paper itself

Abstract

aimTo prospectively and longitudinally investigate vitamin D status during early to mid-pregnancy in relation to gestational diabetes mellitus (GDM) risk.

methodsIn a nested case-control study of 107 GDM cases and 214 controls within the Fetal Growth Studies-Singleton Cohort, plasma levels of 25-hydroxyvitamin D2 and D3 (25(OH)D) and vitamin D binding protein were measured at gestational weeks 10 to 14, 15 to 26, 23 to 31, and 33 to 39; we further calculated total, free, and bioavailable 25(OH)D. Conditional logistic regression models and linear mixed-effects models were used.

resultsWe observed a threshold effect for the relation of vitamin D biomarkers with GDM risk. Vitamin D deficiency (<50 nmol/L) at 10 to 14 gestational weeks was associated with a 2.82-fold increased risk for GDM [odds ratio (OR) = 2.82, 95% confidence interval (CI): 1.15-6.93]. Women with persistent vitamin D deficiency at 10 to 14 and 15 to 26 weeks of gestation had a 4.46-fold elevated risk for GDM compared with women persistently non-deficient (OR = 4.46, 95% CI: 1.15-17.3).

conclusionsMaternal vitamin D deficiency as early as the first trimester of pregnancy was associated with an elevated risk of GDM. The association was stronger for women who were persistently deficient through the second trimester. Assessment of vitamin D status in early pregnancy may be clinically important and valuable for improving risk stratification and developing effective interventions for the primary prevention of GDM.

Indexed as

25-Hydroxyvitamin D 2AdultCalcifediolCase-Control StudiesDiabetes, GestationalFemaleHumansLogistic ModelsLongitudinal StudiesOdds RatioPregnancyPregnancy ComplicationsPregnancy Trimester, FirstRisk FactorsVitamin D-Binding ProteinVitamin D Deficiency25-Hydroxyvitamin D 2CalcifediolGC protein, humanVitamin D-Binding Proteinobservational studypopulation study

Identifiers

PMID30993847
PMCPMC6701861
OpenAlexW2937318068

What OpenQuestion holds

Textmetadata
LicenceTDM
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.