With interest, we read the paper of Hafez et al. (1), which investigated the relationship between vitamin D status and clinical outcome of hospitalized coronavirus disease 2019 (COVID-19) patients. An… Click to show full abstract
With interest, we read the paper of Hafez et al. (1), which investigated the relationship between vitamin D status and clinical outcome of hospitalized coronavirus disease 2019 (COVID-19) patients. An increased risk for intensive care unit (ICU) admission and in-hospital mortality were associated with (very) low serum 25-hydroxyvitamin D [25(OH)D] concentrations. However, we would like to discuss the potentially important influence of vitamin D binding protein (DBP) and its polymorphism on this observation.
               
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