Two studies show no significant difference in risk for COVID-19 or in four coprimary end points, including SARS-CoV-2, serious COVID-19
Odds of Severe, Critical COVID-19 Up With Vitamin D Deficiency
Patients with severe or critical disease more often had preinfection vitamin D deficiency than those with mild-to-moderate disease
Low Vitamin D Levels Tied to Higher Risk for COVID-19 Infection
Risk for COVID-19 infection greater among U.S. Black women with serum levels of vitamin D lower than 20 ng/mL
SARS-CoV-2 Seropositivity Not Associated With Low Vitamin D
SARS-CoV-2 seropositivity not linked to having vitamin D level less than 20 ng/mL or less than 30 ng/mL before or during pandemic
Race May Affect Link Between Vitamin D Level, COVID-19 Risk
Vitamin D levels less than 40 ng/mL linked to increased risk for COVID-19 positivity in Black, but not White, individuals
High Dose of Vitamin D Does Not Cut COVID-19 Hospital Stay
No significant differences seen for other outcomes among patients hospitalized with moderate-to-severe disease
Vitamin D Deficiency Associated With Increased COVID-19 Risk
Significant association persists after adjustment for race, periodontal disease status, diabetes, and obesity