0
0.5
1
1.5
2+
Mortality
41%
Improvement
Relative Risk
Vitamin D for COVID-19 Freitas et al. Sufficiency
Are vitamin D levels associated with COVID-19 outcomes?
Retrospective 490 patients in Portugal
Lower mortality with higher vitamin D levels (p=0.016)
c19early.org
Freitas et al., medRxiv, March 2021
Favors vitamin D
Favors control