COVID-19 pneumonia patients with 25(OH)D levels lower than 12 ng/ml are at increased risk of death
et al., International Journal of Infectious Diseases,
Retrospective 357 COVID-19 pneumonia patients in Slovakia, showing higher mortality with vitamin D deficiency (<12ng/mL). All patients received vitamin D supplementation in hospital. In multivariable linear regression, vitamin D levels were independently associated with mortality (p=0.0398).
risk of death, 19.0% lower, RR 0.81, p = 0.05, high D levels (≥12ng/mL) 127 of 283 (44.9%), low D levels (<12ng/mL) 41 of 74 (55.4%), NNT 9.5.
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Juraj et al., 22 Jan 2022, retrospective, Slovakia, peer-reviewed, 13 authors, study period 1 November, 2020 - 30 April, 2021.