Evidence map›Paper›PMID 29631547›Full record

ArticleBMC pregnancy and childbirth2018

Lower vitamin D levels in Saudi pregnant women are associated with higher risk of developing GDM.

Abdulrahman Al-Ajlan, Sara Al-Musharaf, Mona A Fouda, Soundararajan Krishnaswamy, Kaiser Wani, Naji J Aljohani, Amal Al-Serehi, Eman Sheshah, Naemah M Alshingetti, Iqbah Z Turkistani and 5 more

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
5.2field-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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Climate factors and gestational diabetes mellitus risk - a systematic review.Environmental health : a global access science source · 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

15 authors at 5 institutions in 2 countries.

Abdulrahman Al-AjlanDepartment of Clinical Lab Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia.
Sara Al-MusharafDivision of Metabolic and Vascular Health, University of Warwick, CV47AL, Coventry, UK.
Mona A FoudaDepartment of Medicine, Endocrinology Division, College of Medicine, King Saud University, Riyadh, 11461, Saudi Arabia.
Soundararajan KrishnaswamyPrince Mutaib Chair for Biomarkers of Osteoporosis, Department of Biochemistry, College of Science, King Saud University, PO Box, 2455, Riyadh, 11451, Saudi Arabia.
Kaiser WaniPrince Mutaib Chair for Biomarkers of Osteoporosis, Department of Biochemistry, College of Science, King Saud University, PO Box, 2455, Riyadh, 11451, Saudi Arabia.
Naji J AljohaniObesity, Endocrine and Metabolism Center, King Fahad Medical City, Faculty of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, 11525, Saudi Arabia.
Amal Al-SerehiMaternal-Fetal Medicine Department, King Fahad Medical City, Riyadh, 59406, Saudi Arabia.
Eman SheshahObstetrics and Gynaecology Department, King Salman Bin Abdulaziz Hospital, Riyadh, 11564, Saudi Arabia.
Naemah M AlshingettiDepartment of Medicine, Endocrinology Division, College of Medicine, King Saud University, Riyadh, 11461, Saudi Arabia.
Iqbah Z TurkistaniDepartment of Obstetrics and Gynecology, College of Medicine, King Saud University, Riyadh, 11461, Saudi Arabia.
A Afrah AlharbiPrince Mutaib Chair for Biomarkers of Osteoporosis, Department of Biochemistry, College of Science, King Saud University, PO Box, 2455, Riyadh, 11451, Saudi Arabia.
Buthaynah A AlraqebahPrince Mutaib Chair for Biomarkers of Osteoporosis, Department of Biochemistry, College of Science, King Saud University, PO Box, 2455, Riyadh, 11451, Saudi Arabia.
Aisha Mansoor AliDiabetes Care Center, King Salman Bin Abdulaziz Hospital, Riyadh, Saudi Arabia.
Gawaher Al-SaeedDepartment of Obstetrics and Gynecology, College of Medicine, King Saud University, Riyadh, 11461, Saudi Arabia.
Nasser M Al-DaghriPrince Mutaib Chair for Biomarkers of Osteoporosis, Department of Biochemistry, College of Science, King Saud University, PO Box, 2455, Riyadh, 11451, Saudi Arabia. aldaghri2011@gmail.com.
King Saud University · SAKing Saud bin Abdulaziz University for Health Sciences · SAKing Abdulaziz Hospital · SAKing Fahd Medical City · SAUniversity of Warwick · GB

Funding

National Plan for Science, Technology and Innovation (MAARIFAH) 12-MED2504-02
6 · The paper itself

Abstract

backgroundGestational diabetes mellitus (GDM) has serious consequences such as increased risks of preeclampsia, macrosomia and cesarean delivery. Even though the mechanistic basis of GDM has not been completely understood, several risk factors have been identified and one of these is vitamin D. However, the link between vitamin D deficiency and development of GDM is yet to be proven with certainty.

methodsThis study aimed to investigate the link between the incidence of GDM and serum vitamin D level in pregnant women of Saudi Arabia. 515 Saudi women (ages 18-46) in their 24-28th week of pregnancy, visiting various hospitals of Riyadh, participated in this study. Serum vitamin D and various biochemical and anthropometric parameters were determined in the first trimester and the recruits were screened for GDM by OGTT according to IADPSG criteria in their 2nd trimester. The association between vitamin D deficiency and development of GDM was calculated based on odds ratio of the incidence of GDM among vitamin D deficient and normal women.

resultsIn this study cohort of 515 pregnant women, in the first trimester vitamin D deficiency (< 50 nmol/l) was detected in 425 (82.5%). On their 2nd visit (2nd trimester), 116 (27.7%) were diagnosed with GDM out of 419 with OGTT, according to IADPSG criteria. GDM risk was significantly higher among vitamin D deficient than non-deficient women (Odds Ratio: 2.87; Confidence Interval: 1.32-6.25; P = 0.008) even after adjusting for season, sun exposure and vitamin D intake (OR: 2.9; CI: 1.07-7.89). Of the various anthropometric and biochemical parameters, the GDM women differed significantly from non-GDM women with respect to serum levels of triglycerides (in mmol/l) (1.3 ± 0.6; 1.5 ± 0.6, p = 0.018) and fasting glucose (in mmol/l) [4.7 (4.3-5.2); 5.1 (4.6-5.6), p < 0.01]. Also, fasting glucose level in the 2nd trimester correlated inversely to serum vitamin D level determined during the 1st trimester (r = - 0.121; p = 0.014).

conclusionsResults of our study reveal a significantly higher risk of development of GDM among pregnant women having deficient vitamin D status.

Indexed as

AdolescentAdultBlood GlucoseDiabetes, GestationalFastingFemaleGlucose Tolerance TestHumansIncidenceMiddle AgedNutritional StatusOdds RatioPregnancyPregnancy Trimester, FirstRisk FactorsSaudi Arabia25-hydroxyvitamin DBlood GlucoseVitamin D25(OH) DGestational diabetes mellitusInsulin resistanceOral glucose tolerance testType 2 diabetes mellitus

Identifiers

PMID29631547
PMCPMC5891955
OpenAlexW2803670136

What OpenQuestion holds

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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.