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Home   COVID-19 treatment studies for Vitamin C  COVID-19 treatment studies for Vitamin C  C19 studies: Vitamin C  Vitamin C   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.com/c Li et al. Vitamin C for COVID-19 ICU PATIENTS Favors vitamin C Favors control
Li, 32 patient vitamin C ICU PSM study: 11% higher mortality [p=1] https://c19p.org/li7
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Use of Intravenous Vitamin C in Critically Ill Patients With COVID-19 Infection
Li et al., Journal of Pharmacy Practice, doi:10.1177/08971900211015052
8 Jun 2021    Source   PDF   Share   Tweet
PSM retrospective 8 ICU patients treated with vitamin C and 24 matched controls, showing no significant difference. Authors note that "it is possible for the delayed timing of IV vitamin C to have blunted the beneficial effects as these patients may have already progressed to the late fibroproliferative phase or ARDS". IV vitamin C 1.5 grams every 6 hours.
risk of death, 10.5% higher, RR 1.11, p = 1.00, treatment 7 of 8 (87.5%), control 19 of 24 (79.2%), PSM.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
This study is excluded in the after exclusion results of meta analysis: very late stage, ICU patients.
Li et al., 8 Jun 2021, retrospective, propensity score matching, USA, peer-reviewed, 6 authors.
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This PaperVitamin CAll
Late treatment
is less effective
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