The role of vitamin D in prevention OF COVID-19 and its severity: an umbrella review.

Acta Biomed · 2021 · PMC8851027 · PMID 34739473

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a positive trendno p-value reported

The results of observational studies showed a positive trend between serum 25(OH)D level <20 ng/ml and an increased risk of mortality (Relative Risk (RR) = 2.09 (0.92 to 4.77)), Intensive Care Unit (ICU) admission (RR= 4.89 (0.54 to 44.26)), invasive ventilation (RR= 1.34 (0.64 to 2.79)), non-invasive ventilation (RR= 1.08 (0.30 to 3.80)) or SARS-CoV-2 positivity (RR= 1.35 (0.93 to 1.96)).

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