Meta-analysis results for all treatments

Treatment relative effect with 95% CI; and degree of certainty (adaptated from GRADE). method

Treament Trials      
Demonstrated or suggested benefit Inconclusive results Uncertain results Safety results
Vitamin D8

demonstrated 83 % decrease in ICU admission

inconclusive results for: 14-days deaths; death D28; deaths; death or ventilation; hospital discharge; mechanical ventilation; serious adverse events; adverse events

suggested 6.3-fold increase in viral clearance but the degree if certainty is unassessable

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vitamin C3noneinconclusive results for: death D28; deaths; deaths (time to event analysis only); clinical deterioration; clinical improvement; clinical improvement (14-day); clinical improvement (21-day); clinical improvement (7-day); clinical improvement (time to event analysis only); mechanical ventilation; viral clearance (time to event analysis only); serious adverse events; adverse events

suggested 5.5-fold increase in radiologic improvement (14-day) but the degree if certainty is unassessable

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