Trial reportFrontiers in immunology2019
Impact of Vitamin D Supplementation on Influenza Vaccine Response and Immune Functions in Deficient Elderly Persons: A Randomized Placebo-Controlled Trial.
Trial report in Frontiers in immunology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01893385 (Impact of Vitamin D Supplementation on Immune Functions), which is not on this map. Cited by 78 papers, 6 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Impact of Vitamin D Supplementation on Immune Functions: Study in Subjects Aged Over 65 Years Vaccinated Against Influenza
Who cites it
78 citing papers in PubMed, 6 syntheses or guidelines pooled it, 144 citations in OpenAlex.
- Has a High Dose of Vitamin D3 Impacted Health Conditions in Older Adults?-A Systematic Review and Meta-Analysis Focusing on Dose 100,000 IU.Nutrients · 2024Pooled it
- Meta-Analysis of European Clinical Trials Characterizing the Healthy-Adult Serum 25-hydroxyvitamin D Response to Vitamin D Supplementation.Nutrients · 2023Pooled it
- The role of vitamin D in the age of COVID-19: A systematic review and meta-analysis.International journal of clinical practice · 2021Pooled it
- Association Between Vitamin D and Influenza: Meta-Analysis and Systematic Review of Randomized Controlled Trials.Frontiers in nutrition · 2021Pooled it
- ESPEN expert statements and practical guidance for nutritional management of individuals with SARS-CoV-2 infection.Clinical nutrition (Edinburgh, Scotland) · 2020Guideline
- Enhancing immunity in viral infections, with special emphasis on COVID-19: A review.Diabetes & metabolic syndromePooled it
- Effects of Vitamin D Supplementation and Baseline Vitamin D Status on Acute Respiratory Infections and Cathelicidin: A Randomized Controlled Trial.Open forum infectious diseases · 2024Trial
- The Effect of Weekly 50,000 IU Vitamin DNutrients · 2023Trial
- Treatment With 25-Hydroxyvitamin DEndocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists · 2021Trial
- The effect of standard-dose wintertime vitamin D supplementation on influenza infection in immunized nursing home elderly residents.Croatian medical journal · 2021Trial
- Micronutrients and omega-3 PUFAs to promote healthy ageing: informing a physiology-based complementation strategy.GeroScience · 2026Review
- Vitamin D Level and Antibody Response to the BBIBP-CorV Vaccine in Pregnant Women.Journal of tropical medicine · 2026Article
- Functional Food Ingredients Enhancing Immune Health.International journal of molecular sciences · 2025Review
- Understanding and improving vaccine efficacy in older adults.Nature aging · 2025Review
- Impact of vitamin D levels on mortality in older covid-19 vaccinated patients.BMC geriatrics · 2025Article
- Exploring the link between fat-soluble vitamins and aging-associated immune system status: a literature review.Immunity & ageing : I & A · 2025Review
- Vitamin D as an Adjuvant Immune Enhancer to SARS-Cov-2 Vaccine.Current microbiology · 2025Article
- Herbal and Dietary Supplements as Adjunctive Treatment for Mild SARS-CoV-2 Infection in Italy.Nutrients · 2025Review
- Prevalence of JC polyomavirus among rheumatoid arthritis and systemic lupus erythematosus patients and its correlation with vitamin D levels.Iranian journal of microbiology · 2024Article
- How does geographical diversity shape vaccine efficacy?Clinical and experimental vaccine research · 2024Review
18 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
PubMed holds no abstract for this paper.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.