Evidence map›Paper›PMID 31803350›Full record

ArticleKansas journal of medicine2019

Hypovitaminosis D is Associated with Psoriasis: A Systematic Review and Meta-Analysis.

Siwadon Pitukweerakul, Subhanudh Thavaraputta, Sittichoke Prachuapthunyachart, Rudruidee Karnchanasorn

Open access · diamondAbstract read
In one paragraph

Article in Kansas journal of medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 4 pooled it
2.3field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 4 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Review
  7. Fly Me to the Immune: Immunonutrition in Rheumatic Diseases.Mediterranean journal of rheumatology · 2023
    Article
  8. Article
  9. Vitamin D Signaling in Psoriasis: Pathogenesis and Therapy.International journal of molecular sciences · 2022
    Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
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

4 authors at 3 institutions in 1 country.

Siwadon PitukweerakulUniversity of Kansas Medical Center, Department of Internal Medicine, Division of Endocrinology, Metabolism and Genetics, Kansas City, KS.
Subhanudh ThavaraputtaTexas Tech University Health Sciences Center, Department of Internal Medicine, Lubbock, TX.
Sittichoke PrachuapthunyachartUniversity of Nebraska Medical Center, Department of Pediatrics, Division of Gastroenterology, Omaha, NE.
Rudruidee KarnchanasornUniversity of Kansas Medical Center, Department of Internal Medicine, Division of Endocrinology, Metabolism and Genetics, Kansas City, KS.
University of Kansas Medical Center · USTexas Tech University · USUniversity of Nebraska Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPsoriasis is a chronic inflammatory and immune-mediated skin disease that affects over 7.2 million U.S. adults. Current treatment has improved clinical outcomes. Vitamin D is believed to affect the proliferation and regeneration of keratinocytes; therefore, its deficiency is a possible risk factor; however, there is still no definite evidence. The objective of this study was to synthesize existing data on the relationship between hypovitaminosis D and psoriasis.

methodsA meta-analysis of relevant studies was conducted by doing a comprehensive search in the MEDLINE, EMBASE, and the Cochrane Central Register through July 2018 to identify relevant cohort studies and to assess serum 25-hydroxyvitamin D (25(OH)D) levels in adults with psoriasis. The primary outcome was the mean difference in serum 25(OH)D level between psoriatic patients and controls.

resultsThe initial search identified 107 articles. Only ten studies met the criteria for full-paper review. Meta-analysis was conducted from ten prospective cohort studies involving 6,217 controls and 693 cases. The pooled mean difference in serum 25(OH)D level between psoriatic patients and controls was -6.13 ng/ml (95% CI, -10.93 to -1.32, p-value = 0.01). The between-study heterogeneity (I

conclusionOur meta-analysis was the first study to establish the relation between vitamin D and psoriasis. The result found a significant relationship between low 25(OH) D levels and psoriasis, but did not establish a causal relationship. Further studies will be required to establish whether vitamin D supplementation benefits patients with psoriasis.

Indexed as

cholecalciferolmeta-analysispsoriasisskin diseasesvitamin D

Identifiers

PMID31803350
PMCPMC6884011
OpenAlexW2995072061

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.