COVID-19 studies:  C19 studies: C19:  IvermectinIVM Vitamin DV.D HC QHC Q Vitamin CV.C ZincZn BHBH FPVFPV FLVFLV PVP-IPI REGNR2 LY-CoVLY RMDRMD
Zinc study #8 of 10
10/26 Late treatment study
Frontera et al., Research Square, doi:10.21203/ (Preprint)
Treatment with Zinc is Associated with Reduced In-Hospital Mortality Among COVID-19 Patients: A Multi-Center Cohort Study
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Retrospective 3,473 hospitalized patients showing 37% lower mortality with HCQ+zinc.
PSM aHR 0.63, p=0.015
regression aHR 0.76, p = 0.023

Frontera et al., 10/26/2020, retrospective, USA, North America, preprint, median age 64.0, 14 authors.
risk of death, 37.0% lower, RR 0.63, p = 0.01, treatment 121 of 1006 (12.0%), control 424 of 2467 (17.2%), adjusted per study, PSM.
risk of death, 24.0% lower, RR 0.76, p = 0.02, treatment 121 of 1006 (12.0%), control 424 of 2467 (17.2%), adjusted per study, regression.

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.
Details of all 10 studies
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