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Home   COVID-19 treatment studies for Zinc  COVID-19 treatment studies for Zinc  C19 studies: Zinc  Zinc   Select treatmentSelect treatmentTreatmentsTreatments
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0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ Case 1% Improvement Relative Risk c19zinc.com/loucaz.html Favors zinc Favors control
30 November 2020 - Prophylaxis study
Modest effects of dietary supplements during the COVID-19 pandemic: insights from 445 850 users of the COVID-19 Symptom Study app
Louca et al., BMJ Nutrition, Prevention & Health, doi:10.1136/bmjnph-2021-000250 (preprint 11/30/20) (Peer Reviewed)
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Survey analysis of dietary supplements showing no significant difference in PCR+ cases with zinc usage. These results are for PCR+ cases only, they do not reflect potential benefits for reducing the severity of cases. A number of biases could affect the results, for example users of the app may not be representative of the general population, and people experiencing symptoms may be more likely to install and use the app.
risk of case, 0.9% lower, RR 0.99, p = 0.80, odds ratio converted to relative risk, United Kingdom, all adjustment model.
Effect extraction follows pre-specified rules prioritizing more serious outcomes.
Louca et al., 11/30/2020, retrospective, United Kingdom, Europe, peer-reviewed, 26 authors.
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