Evidence map›Paper›PMID 33116739›Full record

ArticleClinical, cosmetic and investigational dermatology2020

Vitamin D Levels in Patients with and without Acne and Its Relation to Acne Severity: A Case-Control Study.

Ghadah Alhetheli, Ahmed Ibrahim Abd Elneam, Adel Alsenaid, Mohammed Al-Dhubaibi

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Clinical, cosmetic and investigational dermatology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 14% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Vitamin D in the Prevention and Treatment of Inflammatory Skin Diseases.International journal of molecular sciences · 2025
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  4. Article
  5. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Ghadah AlhetheliDepartment of Dermatology and Cutaneous Surgery, College of Medicine, Qassim University, Buraidah, Saudi Arabia.ORCID 0000-0002-3896-1873
Ahmed Ibrahim Abd ElneamClinical Biochemistry, Department of Basic Medical Sciences, College of Medicine, Shaqra University, Dawadmi, Saudi Arabia.
Adel AlsenaidDermatology, Department of Medicine, College of Medicine, Shaqra University, Dawadmi, Saudi Arabia.ORCID 0000-0002-3818-5384
Mohammed Al-DhubaibiDermatology, Department of Medicine, College of Medicine, Shaqra University, Dawadmi, Saudi Arabia.ORCID 0000-0002-6418-6647
Shaqra University · SAQassim University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVitamin D plays a significant role in the function of the immune system and it influences many dermatological diseases such as psoriasis and atopic dermatitis. The prevalence of vitamin D deficiency is growing globally, with around 30-50% of people are known to have low levels of vitamin D. Acne vulgaris is a common inflammatory disorder of the pilosebaceous unit. Studies about the role of vitamin D in the pathogenesis of acne vulgaris have shown conflicting and nonconclusive results. Thus, the precise purpose of vitamin D has not yet been established.

objectiveFirst, to evaluate serum levels of vitamin D through a representative sample of patients with acne vulgaris and compare it with matched healthy controls. Second, to investigate if there is a relation between serum vitamin D level and the severity of acne vulgaris. MATERIALS AND

methodsThis cross-sectional study included 68 patients with acne vulgaris and 50 matched healthy controls. Serum 25-hydroxyvitamin D [25 (OH) D] levels were measured for both patients and healthy controls.

resultsThe study yielded lower levels of serum 25-hydroxyvitamin D in patients with acne vulgaris than its level in healthy controls. This is statistically significant with P-value = 0.003. Regarding age, gender, and sun exposure, there is no significant variation in serum 25-hydroxyvitamin D level. Also, no significant difference between the severity of acne and serum 25-hydroxyvitamin D levels.

conclusionThis study has shown clearly that vitamin D deficiency is more frequent in patients with acne with P-value = 0.003. However, no significant association between the serum level of 25-hydroxyvitamin D [25 (OH) D] and the severity of acne vulgaris. Further clinical trials on a larger scale are needed to address the importance of vitamin D in acne vulgaris. Specifically, determining whether treatment of acne with both topical vitamin D analogs and vitamin D supplementation is of significant effect.

Indexed as

25-hydroxyvitamin Dacne vulgarisvitamin D deficiency

Identifiers

PMID33116739
PMCPMC7549021
OpenAlexW3092228413

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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.