Residents of a Nursing Home who choose monthly Vitamin D had 4X fewer COVID-19 deaths – Nov 2, 2020

Vitamin D Supplementation Associated to Better Survival in Hospitalized Frail Elderly COVID-19 Patients: The GERIA-COVID Quasi-Experimental Study

Nutrients 2020, 12(11), 3377; https://doi.org/10.3390/nu12113377
by Gaëlle Annweiler 1,2, Mathieu Corvaisier 3,4, Jennifer Gautier 3, Vincent Dubée 1,5,6, Erick Legrand 1,7, Guillaume Sacco 3,8 and Cédric Annweiler 1,3,8,9,10,* on behalf of the GERIA-COVID study group
Chart of data by VitaminDWiki

Review of Study by Grassroots Health

Background. The objective of this quasi-experimental study was to determine whether bolus vitamin D supplementation taken either regularly over the preceding year or after the diagnosis of COVID-19 was effective in improving survival among hospitalized frail elderly COVID-19 patients.

Methods. Seventy-seven patients consecutively hospitalized for COVID-19 in a geriatric unit were included. Intervention groups were participants regularly supplemented with vitamin D over the preceding year (Group 1), and those supplemented with vitamin D after COVID-19 diagnosis (Group 2). The comparator group involved participants having received no vitamin D supplements (Group 3). Outcomes were 14-day mortality and highest (worst) score on the ordinal scale for clinical improvement (OSCI) measured during COVID-19 acute phase. Potential confounders were age, gender, functional abilities, undernutrition, cancer, hypertension, cardiomyopathy, glycated hemoglobin, number of acute health issues at admission, hospital use of antibiotics, corticosteroids, and pharmacological treatments of respiratory disorders.

Results. The three groups (n = 77; mean ± SD, 88 ± 5years; 49% women) were similar at baseline (except for woman proportion, p = 0.02), as were the treatments used for COVID-19. In Group 1 (n = 29), 93.1% of COVID-19 participants survived at day 14, compared to 81.2% survivors in Group 2 (n = 16) (p = 0.33) and 68.7% survivors in Group 3 (n = 32) (p = 0.02). While considering Group 3 as reference (hazard ratio (HR) = 1), the fully-adjusted HR for 14-day mortality was HR = 0.07 (p = 0.017) for Group 1 and HR = 0.37 (p = 0.28) for Group 2. Group 1 had longer survival time than Group 3 (log-rank p = 0.015), although there was no difference between Groups 2 and 3 (log-rank p = 0.32). Group 1, but not Group 2 (p = 0.40), was associated with lower risk of OSCI score ≥5 compared to Group 3 (odds ratio = 0.08, p= 0.03).

Conclusions. Regular bolus vitamin D supplementation was associated with less severe COVID-19 and better survival in frail elderly.
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French National Academy recommended 100,000 IU of Vitamin D to elderly to fight COVID-19 - May 2020

Also by Dr. Annweiler Annweiler recommendations for Vitamin D for COVID-19, etc. often start with 200,000 - June 2021

COVID-19 treated by Vitamin D - studies, reports, videos in VitaminDWiki

As of Jan 22, 2022, the VitaminDWiki COVID page had:  19 trial results,   37 meta-analyses and reviews,   Mortality studies   see related:   Governments,   HealthProblems,   Hospitals,  Dark Skins,   26 risk factors are ALL associated with low Vit D,   Recent Virus pages   Fight COVID-19 with 50K Vit D weekly   Vaccines   Take lots of Vitamin D at first signs of COVID   123 COVID Clinical Trials using Vitamin D (1/2023)   Cost to prevent a COVID death: 11 dollars of Vitamin D - Nov 2022
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Items in both categories Virus and Loading Dose are listed here:

Many clinical trials expect that high Vitamin D loading doses will fight COVID-19

Note: The highlighted author of this paper is the Principal Investigator for Clinical Trial #5