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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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0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ Mortality 29% Improvement Relative Risk Mortality (b) 16% c19vitaminc.com/patel.html Favors vitamin C Favors control
1 October 2020 - Late treatment study
The significance of oral ascorbic acid in patients with COVID-19
Patel et al., Chest Infections, doi:10.1016/j.chest.2020.08.322 (Peer Reviewed)
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Retrospective 176 hospitalized patients, 96 treated with oral vitamin C (from 500mg to 1500mg daily), showing lower mortality with treatment.
risk of death, 29.5% lower, RR 0.71, p = 0.18, treatment 22 of 96 (22.9%), control 26 of 80 (32.5%), NNT 10.
risk of death, 15.6% lower, RR 0.84, p = 0.60, treatment 15 of 30 (50.0%), control 16 of 27 (59.3%), NNT 11, ICU patients.
Effect extraction follows pre-specified rules prioritizing more serious outcomes.
Patel et al., 10/1/2020, retrospective, USA, North America, peer-reviewed, 8 authors.
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