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Home   COVID-19 treatment studies for Vitamin D  COVID-19 treatment studies for Vitamin D  C19 studies: Vitamin D  Vitamin D   Select treatmentSelect treatmentTreatmentsTreatments
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0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ Severe case 55% Improvement Relative Risk c19vitamind.com/macaya.html Favors vitamin D Favors control
21 October 2020 - Analysis of outcomes based on serum levels
Interaction between age and vitamin D deficiency in severe COVID-19 infection
Macaya et al., Nutr. Hosp., doi:10.20960/nh.03193 (Peer Reviewed)
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Retrospective 80 hospitalized patients in Spain showing higher risk of severe COVID-19 with vitamin D deficiency.
risk of severe case, 55.0% lower, RR 0.45, p = 0.07, high D levels 11 of 35 (31.4%), low D levels 20 of 45 (44.4%), NNT 7.7, odds ratio converted to relative risk, >20ng/mL.
Effect extraction follows pre-specified rules prioritizing more serious outcomes.
Macaya et al., 10/21/2020, retrospective, Spain, Europe, peer-reviewed, 8 authors.
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