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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
Aspirin Molnupiravir
Bamlanivimab Nigella Sativa
Bromhexine Nitazoxanide
Budesonide Povidone-Iod..
Casirivimab/i.. Probiotics
Colchicine Proxalutamide
Conv. Plasma Quercetin
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Hydroxychloro.. Vitamin C
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Vitamin C study #7 of 31   All Outcomes
10/1 Late treatment study
Patel et al., Chest Infections, doi:10.1016/j.chest.2020.08.322 (Peer Reviewed)
The significance of oral ascorbic acid in patients with COVID-19
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Retrospective 176 hospitalized patients, 96 treated with oral vitamin C (from 500mg to 1500mg daily), showing lower mortality with treatment.
Patel et al., 10/1/2020, retrospective, USA, North America, peer-reviewed, 8 authors.
risk of death, 29.5% lower, RR 0.71, p = 0.18, treatment 22 of 96 (22.9%), control 26 of 80 (32.5%).
risk of death, 15.6% lower, RR 0.84, p = 0.60, treatment 15 of 30 (50.0%), control 16 of 27 (59.3%), ICU patients.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. For an individual study the most serious outcome may have a smaller number of events and lower statistical signficance, however this provides the strongest evidence for the most serious outcomes when combining the results of many trials.
All 31 studies   All Outcomes
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