Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness
et al., PLOS ONE, doi:10.1371/journal.pone.0263069, Jun 2021 (preprint)
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Dror et al., 7 Jun 2021, peer-reviewed, 18 authors.
Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness
PLOS ONE, doi:10.1371/journal.pone.0263069
Objective Studies have demonstrated a potential correlation between low vitamin D status and both an increased risk of infection with SARS-CoV-2 and poorer clinical outcomes. This retrospective study examines if, and to what degree, a relationship exists between pre-infection serum 25-hydroxyvitamin D (25(OH)D) level and disease severity and mortality due to SARS-CoV-2.
Participants The records of individuals admitted between April 7 th , 2020 and February 4 th , 2021 to the Galilee Medical Center (GMC) in Nahariya, Israel, with positive polymerase chain reaction (PCR) tests for SARS-CoV-2 (COVID-19) were searched for historical 25(OH)D levels measured 14 to 730 days prior to the positive PCR test.
Design Patients admitted to GMC with COVID-19 were categorized according to disease severity and level of 25(OH)D. An association between pre-infection 25(OH)D levels, divided between four categories (deficient, insufficient, adequate, and high-normal), and COVID-19 severity was ascertained utilizing a multivariable regression analysis. To isolate the possible influence of the sinusoidal pattern of seasonal 25(OH)D changes throughout the year, a cosinor model was used.
Results Of 1176 patients admitted, 253 had records of a 25(OH)D level prior to COVID-19 infection. A lower vitamin D status was more common in patients with the severe or critical disease (<20 ng/mL [87.4%]) than in individuals with mild or moderate disease (<20 ng/mL [34.3%] p
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"abstract": "<jats:sec id=\"sec001\">\n<jats:title>Objective</jats:title>\n<jats:p>Studies have demonstrated a potential correlation between low vitamin D status and both an increased risk of infection with SARS-CoV-2 and poorer clinical outcomes. This retrospective study examines if, and to what degree, a relationship exists between pre-infection serum 25-hydroxyvitamin D (25(OH)D) level and disease severity and mortality due to SARS-CoV-2.</jats:p>\n</jats:sec>\n<jats:sec id=\"sec002\">\n<jats:title>Participants</jats:title>\n<jats:p>The records of individuals admitted between April 7<jats:sup>th</jats:sup>, 2020 and February 4<jats:sup>th</jats:sup>, 2021 to the Galilee Medical Center (GMC) in Nahariya, Israel, with positive polymerase chain reaction (PCR) tests for SARS-CoV-2 (COVID-19) were searched for historical 25(OH)D levels measured 14 to 730 days prior to the positive PCR test.</jats:p>\n</jats:sec>\n<jats:sec id=\"sec003\">\n<jats:title>Design</jats:title>\n<jats:p>Patients admitted to GMC with COVID-19 were categorized according to disease severity and level of 25(OH)D. An association between pre-infection 25(OH)D levels, divided between four categories (deficient, insufficient, adequate, and high-normal), and COVID-19 severity was ascertained utilizing a multivariable regression analysis. To isolate the possible influence of the sinusoidal pattern of seasonal 25(OH)D changes throughout the year, a cosinor model was used.</jats:p>\n</jats:sec>\n<jats:sec id=\"sec004\">\n<jats:title>Results</jats:title>\n<jats:p>Of 1176 patients admitted, 253 had records of a 25(OH)D level prior to COVID-19 infection. A lower vitamin D status was more common in patients with the severe or critical disease (<20 ng/mL [87.4%]) than in individuals with mild or moderate disease (<20 ng/mL [34.3%] <jats:italic>p</jats:italic> < 0.001). Patients with vitamin D deficiency (<20 ng/mL) were 14 times more likely to have severe or critical disease than patients with 25(OH)D ≥40 ng/mL (odds ratio [OR], 14; 95% confidence interval [CI], 4 to 51; <jats:italic>p</jats:italic> < 0.001).</jats:p>\n</jats:sec>\n<jats:sec id=\"sec005\">\n<jats:title>Conclusions</jats:title>\n<jats:p>Among hospitalized COVID-19 patients, pre-infection deficiency of vitamin D was associated with increased disease severity and mortality.</jats:p>\n</jats:sec>",
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