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0 0.5 1 1.5 2+ Severe case 55% Improvement Relative Risk c19vitamind.com Macaya et al. Vitamin D for COVID-19 Sufficiency Favors vitamin D Favors control
Macaya, 80 patient vitamin D sufficiency study: 55% lower severe cases [p=0.07] https://c19p.org/macaya
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Interaction between age and vitamin D deficiency in severe COVID-19 infection
Macaya et al., Nutr. Hosp., doi:10.20960/nh.03193
21 Oct 2020    Source   PDF   Share   Tweet
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. Submit updates
Macaya et al., 10/21/2020, retrospective, Spain, Europe, peer-reviewed, 8 authors.
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