THE EFFECT OF THE VITAMIN D LEVEL ON THE CLINICAL, LABORATORY, AND OUTCOME IN PATIENTS OVER 65 YEARS OF AGE WITH COVID-19: COMPREHENSIVE TERTIARY CENTER EXPERIENCE

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Introduction: This study aimed to examine the relationship between vitamin D levels and the disease course, laboratory results, and clinical outcomes in patients aged > 65 years with coronavirus disease 2019 (COVID-19). Methods: The laboratory and clinical results of patients aged > 65 years who were admitted to a tertiary intensive care unit due to COVID-19 between April 2020 and May 2021 were retrospectively examined. Results: A total of 299 patients aged >65 years (median: 76 years [interquartile range: 70–83]) diagnosed with COVID-19 were admitted in the ICU. The regression analysis performed between vitamin D level ≥30 ng/mL and 65 years who were admitted to the intensive care unit due to COVID-19. The rates of inflammation and mortality were higher in patients with vitamin D deficiency.