ArticleInternational journal of environmental research and public health2021
Vitamin D Levels Are Reduced at the Time of Hospital Admission in Sicilian SARS-CoV-2-Positive Patients.
Article in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.
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Who cites it
14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 20 citations in OpenAlex.
- Vitamin D Deficiency and Comorbidities as Risk Factors of COVID-19 Infection: A Systematic Review and Meta-analysis.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2022Pooled it
- Vitamin D Status and SARS-CoV-2 Infection and COVID-19 Clinical Outcomes.Frontiers in public health · 2021Pooled it
- Effect of Vitamin D Supplementation on Muscle Status in Old Patients Recovering from COVID-19 Infection.Medicina (Kaunas, Lithuania) · 2021Trial
- Low 1,25-dihydroxyvitamin D levels are associated with severe COVID-19: an observational study in hospitalized patients.Frontiers in nutrition · 2026Article
- Performance of Risk Scores in SARS-CoV-2 Infection: A Retrospective Study.International journal of environmental research and public health · 2025Observational
- Vitamin D Level in Laboratory Confirmed COVID-19 and Disease Progression.The Eurasian journal of medicine · 2022Article
- Association between 25-hydroxyvitamin D levels and COVID-19 severity.Clinical nutrition ESPEN · 2022Observational
- Vitamin D, infections and immunity.Reviews in endocrine & metabolic disorders · 2022Review
- Nutritional risk of vitamin D, vitamin C, zinc, and selenium deficiency on risk and clinical outcomes of COVID-19: A narrative review.Clinical nutrition ESPEN · 2022Review
- Title: Understanding a Low Vitamin D State in the Context of COVID-19.Frontiers in pharmacology · 2022Review
- Vitamin D in infectious complications in critically ill patients with or without COVID-19.Metabolism open · 2021Article
- Reply to Ialongo et al. Vitamin D, SARS-CoV-2 and Causal Associations in Transversal Studies: The Time-Series Analysis to Reveal Potential Confounders. Comment on "Gaudio et al. Vitamin D Levels Are Reduced at the Time of Hospital Admission in Sicilian SARS-CoV-2-Positive Patients.International journal of environmental research and public health · 2021Article
- Vitamin D, SARS-CoV-2 and Causal Associations in Transversal Studies: The Time-Series Analysis to Reveal Potential Confounders. Comment on Gaudio et al. Vitamin D Levels Are Reduced at the Time of Hospital Admission in Sicilian SARS-CoV-2-Positive Patients.International journal of environmental research and public health · 2021Article
- Letter to the editor: Vitamin D levels in acute illness and clinical severity in COVID-19 patients.Respiratory research · 2021Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The coronavirus disease 2019 (COVID-19) pandemic poses a worldwide healthcare challenge that needs an efficient response. Unfortunately, to date there is no highly effective treatment, so a deep understanding of COVID-19 risk factors could be an important step in treating the disease. Vitamin D affects the immune system in many different ways, and other authors already found that COVID-19 patients have low levels of vitamin D. In our retrospective study, we evaluated the vitamin D status at the time of hospital admission in 50 COVID-19 patients in Sicily, which is the southernmost region of Italy, and compared them with 100 control subjects matched for age and sex. Our data showed markedly low levels of vitamin D in patients with a positive polymerase chain reaction (PCR) for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), but no association was found with inflammation markers or clinical severity. Vitamin D levels were reduced at the time of hospital admission in Sicilian SARS-CoV-2-positive patients, but it is not clear whether this condition has an impact on the clinical course of COVID-19.
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Registered trials
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 Socratic graph.