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 #36 of 50
11/13 Analysis of outcomes based on serum levels
Luo et al., The Journal of Nutrition, doi:10.1093/jn/nxaa332 (Peer Reviewed)
Vitamin D Deficiency Is Inversely Associated with COVID-19 Incidence and Disease Severity in Chinese People
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Retrospective 335 patients in China compared to 560 matched controls showing significanlty lower risk of severe COVID-19 with vitamin D sufficiency (>=30 nmol/L) OR 0.37, p = 0.014.

Luo et al., 11/13/2020, retrospective, China, Asia, peer-reviewed, median age 56.0, 5 authors.
risk of disease progression, 63.0% lower, RR 0.37, p = 0.01, treatment 335, control 560, >30nmol/L.
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