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Fig. 2 | Nutrition Journal

Fig. 2

From: Low vitamin D levels do not aggravate COVID-19 risk or death, and vitamin D supplementation does not improve outcomes in hospitalized patients with COVID-19: a meta-analysis and GRADE assessment of cohort studies and RCTs

Fig. 2

Forest plot showing the association between serum vitamin D level and risk of COVID-19 infection and death in patients with COVID-19. A-B: COVID-19 infection, vitamin D was analyzed as a categorical variable (A: upper) or continuous variable (B: lower). C-D: Death, vitamin D was analyzed as a categorical variable (C: upper) or continuous variable (D: lower). (Continuous variable: vitamin D per 10 ng/ml increase). Abbreviations: COVID-19, coronavirus disease 2019; OR, odds ratio; CI, confidence interval; IV, inverse variance; SE, standard error

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