COVID-19 studies:  C19 studies: C19:  IvermectinIVM Vitamin DV.D HC QHC Q Vitamin CV.C ZincZn PVP-IPVP-I FLVFLV REGNR2 LY-CoVLY RemdesivirRMD
Vitamin D study #40 of 69
11/19 Analysis of outcomes based on serum levels
Jain et al., Nature, doi:10.1038/s41598-020-77093-z (Peer Reviewed)
Analysis of vitamin D level among asymptomatic and critically ill COVID-19 patients and its correlation with inflammatory markers
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Prospective study of 91 asymptomatic and 63 ICU patients showing significantly higher vitamin D deficiency in the ICU patients (97% vs. 33%).

Jain et al., 11/19/2020, prospective, India, South Asia, peer-reviewed, 6 authors.
risk of ICU admission, 95.4% lower, RR 0.05, p < 0.001, high D levels 2 of 64 (3.1%), low D levels 61 of 90 (67.8%), >20ng/mL.

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.
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