COVID-19 studies:  C19 studies: C19:  IvermectinIVM Vitamin DV.D HC QHC Q Vitamin CV.C ZincZn PVP-IPVP-I REGNREGN LY-CoVLY RemdesivirRMD
Vitamin D study #20 of 50
9/10 Analysis of outcomes based on serum levels
Radujkovic et al., Nutrients 2020, 12:9, 2757, doi:10.3390/nu12092757 (Peer Reviewed)
Vitamin D Deficiency and Outcome of COVID-19 Patients
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Observational study 185 patients in Germany shows an association between vitamin D status and severity and mortality. Adjusted hazard ratio of vitamin D sufficiency for combined mechanical ventilation and death was HR 0.16, p < 0.001, and for death HR 0.068, p < 0.001.

Radujkovic et al., 9/10/2020, prospective, Germany, Europe, peer-reviewed, 6 authors.
risk of death, 93.2% lower, RR 0.07, p = 0.001, treatment 144, control 12, >30nmol/L.
risk of combined intubation/death, 84.0% lower, RR 0.16, p < 0.001, treatment 144, control 12, >30nmol/L.
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