Association between Maternal Serum 25-Hydroxyvitamin D Concentrations and the Risk of Preterm Birth in Central Sudan: A Case-Control Study.

Somia K Abdelrahiem, Manal E Sharif, Nadiah ALhabardi, Osama Al-Wutayd, Ishag Adam

Open access · goldAbstract read

In one paragraph

Article in Nutrients, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

0.9field-weighted citation impact, top 29% 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

0 citing papers in PubMed, 6 citations in OpenAlex.

No citing paper in PubMed yet.

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

5 authors at 3 institutions in 2 countries.

Somia K AbdelrahiemDepartment of Obstetrics and Gynecology, University of Gezira, Sudan. P.O. Box 20, Wad Medani 21111, Sudan.

Manal E SharifCollege of Medicine, King Khalid University, Abha 61421, Saudi Arabia.

Nadiah ALhabardiDepartment of Obstetrics and Gynecology, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah 56219, Saudi Arabia.

Osama Al-WutaydDepartment of Family and Community Medicine, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah 56219, Saudi Arabia.ORCID 0000-0001-6029-9663

Ishag AdamDepartment of Obstetrics and Gynecology, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah 56219, Saudi Arabia.ORCID 0000-0001-5031-7741

Qassim University · SAKing Khalid University · SAUniversity of Gezira · SD

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There are few published studies on the association between vitamin D concentrations and preterm birth (PB) in sub-Saharan Africa. The current study aimed to assess the association between 25-hydroxyvitamin D (25[OH)] D) levels and PB. A matched case-control study (60 women in each arm) was conducted in Medani maternity hospital in central Sudan. The cases were women with spontaneous PB, and healthy women with term deliveries were the controls. The clinical/medical and obstetric history was gathered using a questionnaire. The enzyme-linked immunosorbent assay was used to measure the serum 25(OH)D levels. Women with PB had significantly lower median (interquartile range) 25(OH)D concentrations compared with the controls (18.4 (7.3) ng/mL vs. 20.2 (16.5) ng/mL,

Indexed as

Premature BirthVitamin D DeficiencyCase-Control StudiesFemaleHumansInfant, NewbornPregnancySudanVitamin D25-hydroxyvitamin DVitamin D25(OH)Dpregnancypreterm birthSudanvitamin

Identifiers

PMID35215541

DOI10.3390/nu14040891

PMCPMC8879935

OpenAlexW4214762409

What OpenQuestion holds

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LicenceCC BY

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Registered trials

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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.