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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 50% Improvement Relative Risk Severe case 68% c19vitamind.com/nimavat.html Favors vitamin D Favors control
5 August 2021 - Analysis of outcomes based on serum levels
Vitamin D deficiency and COVID-19: A case-control study at a tertiary care hospital in India
Nimavat et al., Annals of Medicine and Surgery, doi:10.1016/j.amsu.2021.102661 (Peer Reviewed)
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Case control study with 156 PCR+ cases in India and 204 controls, showing more frequent vitamin D deficiency in COVID-19 patients, and an association between lower vitamin D levels and COVID-19 severity.
risk of death, 50.4% lower, RR 0.50, p = 0.17, high D levels 13 of 131 (9.9%), low D levels 5 of 25 (20.0%), NNT 9.9, >10ng/mL, within cases.
risk of severe case, 67.6% lower, RR 0.32, p = 0.003, high D levels 17 of 131 (13.0%), low D levels 10 of 25 (40.0%), NNT 3.7, >10ng/mL, within cases.
Effect extraction follows pre-specified rules prioritizing more serious outcomes.
Nimavat et al., 8/5/2021, retrospective, India, South Asia, peer-reviewed, 5 authors.
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