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Low Vitamin D increased chance of COVID-19, unless supplement – May 13, 2020

Association of Vitamin D Deficiency and Treatment with COVID-19 Incidence

David O Meltzer dmeltzer at medicine.bsd.uchicago.edu, Thomas J Best, Hui Zhang, Tamara Vokes, Vineet Arora, Julian Solway
doi: https://doi.org/10.1101/2020.05.08.20095893
''This article is a preprint and has not been certified by peer review.
It reports new medical research that has yet to be evaluated and so should not be used to guide clinical practice.''

Supplement reduce COVID positive VDW#11767
Data for the chart comes from table 4
Image

VitaminDWiki

Overvational study of mainly health-care workers in Chicago
Vitamin D levels were tested sometime in the year before being tested for COVID-19
Those whom most-supplemented with vitamin D were far less likely to test positive

Suspect 6X less likely to test positive if taking 10,000 IU for >3 months
Suspect 15X less likely to test positive if take a single dose of vitamin D (cost 4 cents) a few weeks before

Update Sept 26: He is working to launch 3 vitamin D trials and new observational analyses with additional large data.

 Download the PDF from VitaminDWiki

Importance: Vitamin D treatment has been found to decrease incidence of viral respiratory tract infection, especially in vitamin D deficiency. It is unknown whether COVID-19 incidence is associated with vitamin D deficiency and treatment.

Objective: To examine whether vitamin D deficiency and treatment are associated with testing positive for COVID-19. Design: Retrospective cohort study Setting: University of Chicago Medicine Participants: Patients tested for COVID-19 from 3/3/2020-4/10/2020. Vitamin D deficiency was defined by the most recent 25-hydroxycholecalciferol <20ng/ml or 1,25-dihydroxycholecalciferol <18pg/ml within 1 year before COVID-19 testing. Treatment was defined by the most recent vitamin D type and dose, and treatment changes between the time of the most recent vitamin D level and time of COVID-19 testing. Vitamin D deficiency and treatment changes were combined to categorize vitamin D status at the time of COVID-19 testing as likely deficient(last-level-deficient/treatment-not-increased), likely sufficient(last-level-not-deficient/treatment-not-decreased), or uncertain deficiency(last-level-deficient/treatment-increased or last-level-not-deficient/treatment-decreased).

Main Outcomes and Measures: The main outcome was testing positive for COVID-19. Multivariable analysis tested whether the most recent vitamin D level and treatment changes after that level were associated with testing positive for COVID-19 controlling for demographic and comorbidity indicators. Bivariate analyses of associations of treatment with vitamin D deficiency and COVID-19 were performed.

Results: Among 4,314 patients tested for COVID-19, 499 had a vitamin D level in the year before testing. Vitamin D status at the time of COVID-19 testing was categorized as likely deficient for 127(25%) patients, likely sufficient for 291(58%) patients, and uncertain for 81(16%) patients. In multivariate analysis, testing positive for COVID-19 was associated with increasing age (RR(age<50)=1.05, p<0.021; RR(age≥50)=1.02,p<0.064)), non-white race(RR=2.54,p<0.01) and being likely vitamin D deficient (deficient/treatment-not-increased: RR=1.77,p<0.02) as compared to likely vitamin D sufficient(not-deficient/treatment-not-decreased), with predicted COVID-19 rates in the vitamin D deficient group of 21.6%(95%CI[14.0%-29.2%] ) versus 12.2%(95%CI[8.9%-15.4%]) in the vitamin D sufficient group. Vitamin D deficiency declined with increasing vitamin D dose, especially of vitamin D3. Vitamin D dose was not significantly associated with testing positive for COVID-19.

Conclusions and Relevance: Vitamin D deficiency that is not sufficiently treated is associated with COVID-19 risk. Testing and treatment for vitamin D deficiency to address COVID-19 warrant aggressive pursuit and study.


COVID-19 treated by Vitamin D - studies, reports, videos

Contents as of Oct 23:

  • 33 trials, 1 trial result, 26 observations, 9 recommendations, 34 associations, 73 speculations, 25 videos
Top Vitamin D and COVID-19 recent updates

Click on chart for details

Search Google Scholar for COVID-19 Vitamin D 20,000 publications Oct 10, 2020


Created by admin. Last Modification: Saturday September 26, 2020 11:40:04 GMT-0000 by admin. (Version 21)

Attached files

ID Name Comment Uploaded Size Downloads
13817 Masterjohn May 15.pdf admin 15 May, 2020 11:26 62.53 Kb 67
13815 T4.jpg admin 15 May, 2020 01:50 44.34 Kb 667
13814 Association of Vitamin D Deficiency and Treatment with COVID-19 Incidence.pdf PDF 2020 admin 15 May, 2020 01:49 872.30 Kb 202
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