Evidence map›Paper›PMID 41970403›Full record

ArticleFrontiers in medicine2026

Association between serum 25-hydroxyvitamin D [25(OH)D] levels and vaginal delivery in pregnant women: an observational case-control study from Türkiye.

Halime Selen, Nurten Özçalkap, Egehan Bilen

Abstract read
In one paragraph

Article in Frontiers in medicine, 2026. 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
–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

0 citing papers in PubMed.

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

3 authors.

Halime SelenDepartment of Nutrition and Dietetics, Faculty of Health Sciences, Ağrı İbrahim Çeçen University, Ağrı, Türkiye.
Nurten ÖzçalkapDepartment of Midwifery, Faculty of Health Sciences, Ağrı İbrahim Çeçen University, Ağrı, Türkiye.
Egehan BilenWomen's Health and Obstetrics Clinic, Ağrı Training and Research Hospital, Ağrı, Türkiye.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: This study aimed to evaluate the relationship between maternal serum 25-hydroxyvitamin D [25(OH)D] levels and the likelihood of vaginal delivery. Materials and methods: This observational case-control study was conducted with a total of 298 women, comprising a case group of those who were unable to deliver vaginally and underwent emergency cesarean section ( Results: According to the findings of our study, higher serum 25(OH)D levels were significantly associated with a reduced risk of cesarean delivery ( Conclusion: Higher serum vitamin D levels were associated with an increased likelihood of vaginal delivery. In this context, optimizing vitamin D status through sunlight exposure, nutrition, or supplementation may represent an important step in protecting maternal and neonatal health.

Indexed as

25-hydroxyvitamin D [25(OH)D]cesarean deliveryfertilityobesitypregnancyvaginal delivery

Identifiers

PMID41970403
PMCPMC13062277

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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.