Evidence map›Paper›PMID 30513089›Full record

ArticlePloS one2018

Vitamin D and metabolic disturbances in polycystic ovary syndrome (PCOS): A cross-sectional study.

Y H M Krul-Poel, P P Koenders, R P Steegers-Theunissen, E Ten Boekel, M M Ter Wee, Y Louwers, P Lips, J S E Laven, S Simsek

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 4 pooled it
8.2field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 4 syntheses or guidelines pooled it, 112 citations in OpenAlex.

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  16. Clinical Phenotypes of PCOS: a Cross-Sectional Study.Reproductive sciences (Thousand Oaks, Calif.) · 2023
    Article
  17. Article
  18. Effect of Vitamin DCells · 2023
    Article
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  20. Review
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

9 authors at 3 institutions in 1 country.

Y H M Krul-PoelDepartment of Internal Medicine/Endocrinology, VU University Medical Center, Amsterdam, The Netherlands.
P P KoendersDepartment of Internal Medicine, Medical Center Alkmaar, Alkmaar, The Netherlands.
R P Steegers-TheunissenDepartment of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
E Ten BoekelDepartment of Clinical Chemistry, Hematology & Immunology, Medical Center Alkmaar, Alkmaar, The Netherlands.
M M Ter WeeDepartment of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, the Netherlands.
Y LouwersDepartment of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
P LipsDepartment of Internal Medicine/Endocrinology, VU University Medical Center, Amsterdam, The Netherlands.
J S E LavenDivision of Reproductive Medicine, Department of Obstetrics, Gynecology, Erasmus Medical Center Rotterdam, The Netherlands.
S SimsekDepartment of Internal Medicine/Endocrinology, VU University Medical Center, Amsterdam, The Netherlands.ORCID 0000-0001-8942-1503
Amsterdam UMC Location Vrije Universiteit Amsterdam · NLErasmus MC · NLMedisch Centrum Alkmaar · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo compare vitamin D status in women with PCOS versus fertile women and subsequently evaluate the association between vitamin D status and metabolic disturbances in PCOS women.

methodsWe conducted a cross-sectional comparison study of 639 women with PCOS and 449 fertile women. Serum 25-hydroxyvitamin D (25(OH)D) was stratified into a severe deficient (< 25 nmol/l), insufficient (25-50 nmol/l), moderate (50-75 nmol/l) and adequate (> 75 nmol/l) status. The main outcome measures were the difference in vitamin D status between PCOS and fertile women, and the association between serum 25(OH)D and metabolic disturbances in PCOS women only.

resultsSerum 25(OH)D was significantly lower in PCOS women compared to fertile controls (mean 25(OH)D of 49.0 nmol/l versus 64.5 nmol/l). An adjusted significant difference was seen between serum 25(OH)D and homeostasis model assessment (HOMA-IR) (β = 0.76; 95% CI: 0.63-0.91; p < 0.01), HDL-cholesterol (β = 0.20; 95% CI: 0.05-0.60, p < 0.01) and apolipoprotein A1 (β = 26.2; 95% CI: 7.5-45.0, p < 0.01) between the highest vitamin D group compared to the lowest vitamin D group.

conclusionsThis study demonstrates that women with PCOS have a significantly lower serum 25(OH)D compared to fertile controls. A compromised vitamin D status in PCOS women is associated with a higher HOMA-IR and an unfavourable lipid profile. Large randomized controlled trials are necessary to explore the causality of this linkage.

Indexed as

AdultCholesterol, HDLCross-Sectional StudiesFemaleHumansPolycystic Ovary SyndromeRetrospective StudiesVitamin DCholesterol, HDLVitamin D

Identifiers

PMID30513089
PMCPMC6279035
OpenAlexW2903452319

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.