The journal retracts the article “Protective Effect of Vitamin D Supplementation on COVID-19-Related Intensive Care Hospitalization and Mortality: Definitive Evidence from Meta-Analysis and Trial Sequential Analysis” [1], cited above.
Following publication, concerns were brought to the attention of the Editorial Office regarding methodology and the overall validity of the findings presented within this publication [1].
Adhering to our standard procedure, the Editorial Office and Editorial Board conducted an investigation, which confirmed that at least one included study is not a randomized clinical trial (RCT) yet was included in the analysis. Combining such studies could have led to biased conclusions. As a result, the Editorial Board and Editor-in-Chief have lost confidence in the reliability of the findings of this publication [1] and have decided to retract this paper as per MDPI’s retraction policy (https://www.mdpi.com/ethics#_bookmark30).
This retraction was approved by the Editor-in-Chief of the Pharmaceuticals journal.
The authors disagree with this retraction.
Reference
- Argano, C.; Mallaci Bocchio, R.; Natoli, G.; Scibetta, S.; Lo Monaco, M.; Corrao, S. RETRACTED: Protective Effect of Vitamin D Supplementation on COVID-19-Related Intensive Care Hospitalization and Mortality: Definitive Evidence from Meta-Analysis and Trial Sequential Analysis. Pharmaceuticals 2023, 16, 130. [Google Scholar] [CrossRef]
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content. |
© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).