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0 0.5 1 1.5 2+ Hospitalization 13% Improvement Relative Risk c19vitamind.com Israel et al. Vitamin D for COVID-19 Prophylaxis Favors vitamin D Favors control
Israel, 20,859 patient vitamin D prophylaxis study: 13% lower hospitalization [p=0.003] https://c19p.org/israel2
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Identification of drugs associated with reduced severity of COVID-19: A case-control study in a large population
Israel et al., Epidemiology and Global Health Microbiology and Infectious Disease, doi:10.7554/eLife.68165
27 Jul 2021    Source   PDF   Share   Tweet
Case control study examining medication usage with a healthcare database in Israel, showing lower risk of hospitalization with vitamin D (defined as being picked up within 35 days prior to PCR+). Other patients may have acquired vitamin D supplements outside of the healthcare system.
risk of hospitalization, 13.1% lower, OR 0.87, p = 0.003, treatment 737 of 6,953 (10.6%) cases, 1,669 of 13,906 (12.0%) controls, NNT 33, case control OR, PCR+, cohort 2.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Israel et al., 7/27/2021, retrospective, Israel, Middle East, peer-reviewed, 10 authors, dosage not specified.
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