Evidence map›Paper›PMID 37727794›Full record

ArticleFrontiers in immunology2023

Association of serum vitamin D concentration with the final course of hospitalization in patients with COVID-19.

Klaudia Konikowska, Katarzyna Kiliś-Pstrusińska, Agnieszka Matera-Witkiewicz, Krzysztof Kujawa, Barbara Adamik, Adrian Doroszko, Krzysztof Kaliszewski, Michał Pomorski, Marcin Protasiewicz, Janusz Sokołowski and 2 more

Abstract read
In one paragraph

Article in Frontiers in immunology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Special Issue: Molecular Research and Insights into COVID-19: 2nd Edition.International journal of molecular sciences · 2025
    Article
  3. Review
  4. Effect of Vitamin D in Long COVID Patients.International journal of environmental research and public health · 2023
    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

12 authors.

Klaudia KonikowskaDepartment of Dietetics and Bromatology, Wroclaw Medical University, Wroclaw, Poland.
Katarzyna Kiliś-PstrusińskaClinical Department of Paediatric Nephrology, Wroclaw Medical University, Wroclaw, Poland.
Agnieszka Matera-WitkiewiczScreening of Biological Activity Assays and Collection of Biological Material Laboratory, Wroclaw Medical University Biobank, Wroclaw Medical University, Wroclaw, Poland.
Krzysztof KujawaStatistical Analysis Centre, Wroclaw Medical University, Wroclaw, Poland.
Barbara AdamikClinical Department of Anaesthesiology and Intensive Therapy, Wroclaw Medical University, Wroclaw, Poland.
Adrian DoroszkoClinical Department of Internal and Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, Wroclaw, Poland.
Krzysztof KaliszewskiClinical Department of General, Minimally Invasive and Endocrine Surgery, Wroclaw Medical University, Wroclaw, Poland.
Michał PomorskiClinical Department of Gynecology and Obstetrics, Wroclaw Medical University, Wroclaw, Poland.
Marcin ProtasiewiczInstitute of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland.
Janusz SokołowskiClinical Department of Emergency Medicine, Wroclaw Medical University, Wroclaw, Poland.
Katarzyna MadziarskaClinical Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland.
Ewa Anita JankowskaInstitute of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Vitamin D deficiency is a substantial public health problem. The present study evaluated the association between vitamin D concentration and hospitalization and mortality risk in patients with coronavirus disease 19 (COVID-19). Methods: This study used the COronavirus in LOwer Silesia (COLOS) dataset collected between February 2020 and June 2021. The medical records of 474 patients with confirmed severe acute respiratory syndrome 2 (SARS-CoV-2) infection, and whose vitamin D concentration was measured, were analyzed. Results: We determined a significant difference in vitamin D concentration between discharged patients and those who died during hospitalization (p = 0.0096). We also found an effect of vitamin D concentration on the risk of death in patients hospitalized due to COVID-19. As vitamin D concentration increased, the odds ratio (OR) for death slightly decreased (OR = 0.978; 95% confidence interval [CI] = 0.540-0.669). The vitamin D concentration cutoff point was 15.40 ng/ml. In addition, patients with COVID-19 and serum 25-hydroxyvitamin D (25(OH)D) concentrations < 30 ng/ml had a lower survival rate than those with serum 25(OH)D ≥ 30 ng/ml (log-rank test p = 0.0018). Moreover, a Cox regression model showed that patients with an estimated glomerular filtration rate (eGFR) ≥ 60 ml/min/1.73 m Conclusions: The results indicate an association between 25(OH)D levels in patients with COVID-19 and the final course of hospitalization and risk of death.

Indexed as

COVID-19HospitalizationHumansSARS-CoV-2Vitamin DVitaminsVitamin DVitaminsCOVID-19mortalitypublic healthSARS-CoV-2vitamin Dvitamin D deficiency

Identifiers

PMID37727794
PMCPMC10505823

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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.