Association between population vitamin D status and SARS-CoV-2 related serious-critical illness and deaths: An ecological integrative approach
Dimitrios T Papadimitriou, Pediatric - Adolescent Endocrinology and Diabetes, Athens Medical Center, Marousi 15125, Greece
Dimitrios T Papadimitriou, Endocrine Unit, Aretaieion University Hospital, Athens 11528, Greece
Alexandros K Vassaras, Neurology Department, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki 56429, Greece
Alexandros K Vassaras, Neuroimmunology Department, Democritus University of Thrace, Alexandroupoli 68100, Greece
Michael F Holick, Section Endocrinology, Nutrition and Diabetes, Department of Medicine, Boston University Medical Center, Boston, MA 02118, United States
Author contributions: All authors contributed to this manuscript; Papadimitriou DT and Vassaras AK contributed to conceptualization; Holick MF did data curation; Papadimitriou DT contributed to formal analysis and methodology; Holick MF contributed to project administration; Vassaras AK did visualization; Papadimitriou DT wrote the original draft; Holick MF wrote, reviewed and edited the manuscript; all authors have read and approve the final manuscript.
Conflict-of-interest statement: Holick MF was a former consultant for Quest Diagnostics, consultant for Ontometrics Inc. and speaker’s Bureau for Abbott Inc. The other authors have no conflicts of interest to declare.
PRISMA 2009 Checklist statement: The guidelines of the PRISMA 2009 Statement have been adopted.
: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non-Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Dimitrios T Papadimitriou, MD, MSc, PhD, Director, Pediatric - Adolescent Endocrinology and Diabetes, Athens Medical Center, 58, Kifisias av., Marousi 15125, Greece. email@example.com
Received: January 10, 2021
Peer-review started: January 10, 2021
First decision: February 15, 2021
Revised: February 21, 2021
Accepted: April 7, 2021
Article in press: April 7, 2021
Published online: May 25, 2021