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Abstract Title:

Vitamin D insufficiency as a potential culprit in critical COVID-19 patients.

Abstract Source:

J Med Virol. 2020 Jul 27. Epub 2020 Jul 27. PMID: 32716073

Abstract Author(s):

Ruhul Munshi, Mohammad H Hussein, Eman A Toraih, Rami M Elshazli, Christina Jardak, Nasrin Sultana, Mohanad R Youssef, Mahmoud Omar, Abdallah S Attia, Manal S Fawzy, Mary Killackey, Emad Kandil, Juan Duchesne

Article Affiliation:

Ruhul Munshi

Abstract:

BACKGROUND: As an immune modulator, vitamin D has been implicated in the Coronavirus disease-2019 (COVID-19) outcome. We aim to systematically explore the association of vitamin D serum levels with COVID-19 severity and prognosis.

METHODS: The standardized mean difference (SMD) or odds ratio and 95% confidence interval (CI) were applied to estimate pooled results from seven studies. The prognostic performance of vitamin D serum levels for predicting adverse outcomes with detection of the best cutoff threshold was determined by ROC curve analysis. Decision tree analysis by combining vitamin D levels and clinical features was applied to predict severity in COVID-19 patients.

RESULTS: Mean vitamin D serum level of 1,368 patients, was 22.9 nmol/L (21.9-23.8). Significant heterogeneity was found (I= 99.9%, P<0.001). Patients with poor prognosis (N=634) had significantly lower serum levels of vitamin D compared to those with good prognosis (N=669), representing an adjusted standardized mean difference of -5.12 (95% Cl= -9.14 to -1.10, P = 0.012).

CONCLUSION: Serum vitamin D levels could be implicated in the COVID-19 prognosis. Diagnosis of vitamin D deficiency could be a helpful adjunct in assessing patients' potential of developing severe COVID-19. Appropriate preventative and/or therapeutic intervention may improve COVID-19 outcomes. This article is protected by copyright. All rights reserved.

Study Type : Review

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