This retrospective, observational study suggests that there may be an association between vitamin D deficiency on hospital admission and mortality of COVID-19 pneumonia,...
This study investigated the relationships between latitude, age of population, population density and pollution with COVID-19 mortality. The proportion of older people...
There is a potential connection between vitamin D level and COVID-19, but more studies in children are needed before any conclusions can be drawn.
Significantly lower serum 25(OH)D concentrations were found in severe COVID-19 patients from Wuhan, China compared to non-severe patients. Vitamin D deficiency (
In elderly patients in Brazil testing positive for COVID-19 admitted to an ICU there was a high prevalence of obesity and low vitamin D levels. Whether or not the obesity and...
Large oral doses of vitamin D taken in the year prior to COVID-19 diagnosis were associated with less severe disease and better survival in frail elderly patients in France...
A lower vitamin D status was associated with negative clinical outcomes and decreased survival in hospitalized patients in Iran with COVID-19.
Among COVID‐19‐positive patients in Turkey in this retrospective cohort study, the group with vitamin D levels of >75 nmol/L had significantly lower D‐dimer and C‐reactive protein (CRP) levels (a marker of inflammation), number of affected...
Vitamin D and calcium deficiency may be related to short-term COVID-19 outcomes and therefore it may improve outcomes to screen and address levels of vitamin D and calcium during treatment. The study...
This observational study identified an inverse relationship between vitamin D treatment and COVID-19 related mortality: those receiving vitamin D supplementation...
