Karonova, 80 patient vitamin D sufficiency study: 79% lower mortality [p=0.11] and 71% lower severe cases [p=0.07] https://c19p.org/karonova
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Serum 25(oH)D level in patients with CoVID-19
et al., Infectology, doi:10.22625/2072-6732-2020-12-3-21-27
Retrospective 80 COVID-19 patients showing low vitamin D levels associated with severity and mortality.
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risk of death, 79.4% lower, RR 0.21, p = 0.11, high D levels 1 of 23 (4.3%), low D levels 12 of 57 (21.1%), NNT 6.0, inverted to make RR<1 favor high D levels, odds ratio converted to relative risk, >20ng/ml.
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risk of severe case, 71.1% lower, RR 0.29, p = 0.07, high D levels 3 of 23 (13.0%), low D levels 22 of 57 (38.6%), NNT 3.9, inverted to make RR<1 favor high D levels, odds ratio converted to relative risk, >20ng/ml.
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| Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates |
Karonova et al., 31 Dec 2020, retrospective, Russia, peer-reviewed, 3 authors.
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