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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+ Case 54% Improvement Relative Risk c19vitamind.com/abdollahi.html Favors vitamin D Favors control
12 December 2020 - Analysis of outcomes based on serum levels
The Association Between the Level of Serum 25(OH) Vitamin D, Obesity, and underlying Diseases with the risk of Developing COVID‐19 Infection: A case‐control study of hospitalized patients in Tehran, Iran
Abdollahi et al., Journal of Medical Virology, doi:10.1002/jmv.26726 (Peer Reviewed)
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Case control study with 201 patients and 201 matched controls in Iran showing vitamin D deficiency associated with COVID-19.
risk of case, 53.9% lower, RR 0.46, p = 0.001, high D levels 108, low D levels 294, >30ng/ml.
Effect extraction follows pre-specified rules prioritizing more serious outcomes.
Abdollahi et al., 12/12/2020, retrospective, Iran, Middle East, peer-reviewed, 7 authors.
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