The prognostic significance of vitamin D deficiency in patients with COVID-19 pneumonia
M Yildiz, M U Senel, S Kavurgaci, F E Ozturk, A Ozturk
Bratislava Medical Journal, doi:10.4149/bll_2021_119
BACKGROUND: Vitamin D has anti-infl ammatory and immunomodulatory effects via the downregulation of pro-infl ammatory cytokines. We aimed to demonstrate the effect of vitamin D levels on survival in COVID-19 patients. MATERIALS AND METHODS: 207 COVID-19 patients were included in the study. Serum vitamin D levels were measured, and patients with levels < 20 ng/ml or 21 to 30 ng received a single 300.000 IU dose of vitamin D. RESULTS: Of 207 patients, 37 received vitamin D, while 170 did not. Demographic, radiologic and mean laboratory values were similar between the groups. The mean plasma vitamin D level without vitamin D support (n=170) was 50.82 ± 16.12 ng/ml (30.28 -81.35) vs. 16.98 ± 6.2 ng/ml (4.20 -28.30) in vitamin D group. The most remarkable fi nding were the mortality rates; while only 1 patient (2.7 %) died in the vitamin D group, 24 patients (14.1 %) died in no vitamin D supplementation group (p = 0.038). CONCLUSION: Although a few retrospective studies put forth a relation between vitamin D defi ciency and COVID-19 course severity there is still paucity of data about the effi cacy of vitamin supplementations in COVID-19 patients. A single 300.000 IU dose of vitamin D seems to represent a useful, practical, and safe adjunctive approach for the treatment or prevention of Fig. 1, Ref. 30).
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