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All Studies   Meta Analysis   Recent: 
Therapeutic and prognostic role of vitamin D for COVID-19 infection: A systematic review and meta-analysis of 43 observational studies
Petrelli et al., The Journal of Steroid Biochemistry and Molecular Biology, doi:10.1016/j.jsbmb.2021.105883 (meta analysis)
26 Mar 2021    Source   PDF   Share   Tweet
Meta analysis showing vitamin D deficiency associated with higher risk of COVID-19, worse severity, and higher mortality.
Supplementation with vitamin D reduced the risk of severe cases and mortality.
Currently there are 101 vitamin D studies and meta analysis shows:
OutcomeImprovement
Mortality37% lower [28‑44%]
Ventilation26% lower [-2‑46%]
ICU admission49% lower [32‑62%]
Hospitalization18% lower [5‑28%]
Cases12% fewer [3‑21%]
Petrelli et al., 26 Mar 2021, peer-reviewed, 6 authors.
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