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0 0.5 1 1.5 2+ Symptomatic case 22% Improvement Relative Risk c19vitamind.com Dudley et al. Vitamin D for COVID-19 Prophylaxis Favors vitamin D Favors control
Dudley, 64 patient vitamin D prophylaxis study: 22% fewer symptomatic cases [p=0.65] https://c19p.org/dudley
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Revisiting vitamin D status and supplementation for in-patients with intellectual and developmental disability in the North of England, UK
Dudley et al., BJPsych Bulletin, doi:10.1192/bjb.2021.55
18 May 2021    Source   PDF   Share   Tweet
Retrospective 64 patients with intellectual and developmental disability in the UK, showing no sigificant difference in COVID-19 status with vitamin D supplementation. Only 6 patients were not on vitamin D supplementation.
risk of symptomatic case, 22.4% lower, RR 0.78, p = 0.65, treatment 15 of 58 (25.9%), control 2 of 6 (33.3%), NNT 13, positive test.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Dudley et al., 5/18/2021, retrospective, United Kingdom, Europe, peer-reviewed, 5 authors, dosage 800IU daily.
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