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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+ Mortality 48% Improvement Relative Risk c19vitamind.com/tehrani2.html Favors vitamin D Favors control
25 January 2021 - Analysis of outcomes based on serum levels
Evaluation of vitamin D levels in COVID-19 patients referred to Labafinejad hospital in Tehran and its relationship with disease severity and mortality
Tehrani et al., Clinical Nutrition, doi:10.1016/j.clnesp.2021.01.014 (Peer Reviewed)
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Retrospective 205 patients in Iran, showing higher mortality with vitamin D deficiency, not quite reaching statistical significance.
risk of death, 47.5% lower, RR 0.52, p = 0.07, high D levels 34 of 180 (18.9%), low D levels 9 of 25 (36.0%), NNT 5.8, >10ng/ml.
Effect extraction follows pre-specified rules prioritizing more serious outcomes.
Tehrani et al., 1/25/2021, retrospective, Iran, Middle East, peer-reviewed, 5 authors.
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