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Home   COVID-19 treatment studies for Vitamin D  COVID-19 treatment studies for Vitamin D  C19 studies: Vitamin D  Vitamin D   Select treatmentSelect treatmentTreatmentsTreatments
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All Studies   Meta Analysis   Recent: 
0 0.5 1 1.5 2+ Mortality 11% Improvement Relative Risk c19early.org/d Rosenthal et al. Vitamin D for COVID-19 LATE Favors vitamin D Favors control
Risk Factors Associated With In-Hospital Mortality in a US National Sample of Patients With COVID-19
Rosenthal et al., JAMA Network Open, doi:10.1001/jamanetworkopen.2020.29058
10 Dec 2020    Source   PDF   Share   Tweet
Retrospective database analysis of 64,781 hospitalized patients in the USA, showing lower mortality with vitamin C or vitamin D (authors do not distinguish between the two), and higher mortality with zinc and HCQ, statistically significant for zinc. Authors excluded hospital-based outpatient visits, without explanation. Confounding by indication is likely, adjustments do not appear to include any information on COVID-19 severity at baseline.
risk of death, 11.0% lower, OR 0.89, p = 0.005, adjusted per study, vitamin C or vitamin D, multivariable, RR approximated with OR.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
This study is excluded in meta analysis: results are only provided for use of one or more treatments within a class of treatments, results for each treatment are not provided; confounding by indication is likely and adjustments do not consider COVID-19 severity at baseline.
Rosenthal et al., 10 Dec 2020, retrospective, database analysis, USA, peer-reviewed, 5 authors.
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This PaperVitamin DAll
Late treatment
is less effective
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