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0 0.5 1 1.5 2+ Case 30% Improvement Relative Risk c19early.org/d Ma et al. Vitamin D for COVID-19 Prophylaxis Does vitamin D reduce COVID-19 infections? Retrospective 8,297 patients in the United Kingdom Fewer cases with vitamin D (p=0.034) Ma et al., The American J. Clinical Nutrition, doi:10.1093/ajcn/nqaa381 Favors vitamin D Favors control
Habitual use of vitamin D supplements and risk of coronavirus disease 2019 (COVID-19) infection: a prospective study in UK Biobank
Ma et al., The American Journal of Clinical Nutrition, doi:10.1093/ajcn/nqaa381
Ma et al., Habitual use of vitamin D supplements and risk of coronavirus disease 2019 (COVID-19) infection: a prospective.., The American Journal of Clinical Nutrition, doi:10.1093/ajcn/nqaa381
Jan 2021   Source   PDF  
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Retrospective 8,297 adults from the UK Biobank showing the habitual use of vitamin D supplements significantly associated with lower risk of COVID-19 cases. Note that the information on vitamin D supplement use was collected a median of 10 years before the COVID-19 tests, so usage may have changed significantly.
risk of case, 30.0% lower, RR 0.70, p = 0.03, treatment 49 of 363 (13.5%), control 1,329 of 7,934 (16.8%), adjusted per study, odds ratio converted to relative risk.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Ma et al., 29 Jan 2021, retrospective, United Kingdom, peer-reviewed, 4 authors, dosage not specified.
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Abstract: Associations between predicted vitamin D status, vitamin D intake, and risk of SARS-CoV-2 infection and Coronavirus Disease 2019 severity ED IT ED M A N U SC RI PT Affiliations: 1 Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 2 Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 3 Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 4 Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 5 Diabetes Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 6 Program in Medical and Population Genetics, Broad Institute, Cambridge, MA 7 Department of Medicine, Harvard Medical School, Boston, MA 8 Division of Women’s Health, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 9 Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 10 Department of Emergency Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 11 Division of Preventive Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 12 Division of Infectious Diseases, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA # Contributed equally to this work. N Short title: Vitamin D and COVID-19 IN A L U Funding: This work was supported by grants U01 CA176726 and U01 HL145386 from the National Institutes of Health, Harvard T.H. Chan School of Public Health Dean’s Fund for Scientific Advancement: Acceleration Award, Massachusetts Consortium on Pathogen Readiness COVID-19 Response Fund Award, and a Stuart and Suzanne Steele MGH Research Scholar Award. The funders had no role in study design, data collection and analysis, interpretation of data, writing of the report, and decision to submit the paper for publication. O RI G Acknowledgements: We would like to thank the participants and staff of the Nurses’ Health Study II. WM, SNB, and ATC designed research; WM conducted the data analysis; WM, SNB, and ATC wrote the paper; ATC had primary responsibility for final content. All authors read and approved the final manuscript. The authors declare no conflicts of interests. © The Author(s) 2021. Published by Oxford University Press on behalf of the American Society for Nutrition. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com Authors: Wenjie Ma, ScD1,2, Long H. Nguyen, MD, MS1,2, Yiyang Yue, MS3, Ming Ding, ScD3, David A. Drew, PhD1,2, Kai Wang, MD, PhD4, Jordi Merino, PhD5,6,7, Janet W. Rich-Edwards, ScD4,8, Qi Sun, MD, ScD3,4,8, Carlos A. Camargo Jr., MD, DrPH4,9,10, Edward Giovannucci, MD, ScD3,4,9, Walter Willett, MD, DrPH3,4,9, JoAnn E. Manson, MD, DrPH4,11, Mingyang Song, MD, ScD1,2,3,4, Shilpa N. Bhupathiraju, PhD3,9#, Andrew T. Chan, MD, MPH1,2,4,9# Data sharing: Data described in the manuscript, code book, and analytic code will be made available upon request pending application and approval. Further information including the procedures to obtain and access data is described at https://www.nurseshealthstudy.org/researchers. PT Corresponding author: Dr. Andrew T. Chan, Clinical and..
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