SynthesisJournal of medical virology2023
The effect of adherence to high-quality dietary pattern on COVID-19 outcomes: A systematic review and meta-analysis.
Synthesis in Journal of medical virology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 7 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
22 citing papers in PubMed, 7 syntheses or guidelines pooled it, 42 citations in OpenAlex.
- Associations Between Exercise Training, Physical Activity, Sedentary Behaviour and Mortality: An Umbrella Review of Meta-Analyses.Journal of cachexia, sarcopenia and muscle · 2025Pooled it
- Vision impairment and associated daily activity limitation: A systematic review and meta-analysis.PloS one · 2025Pooled it
- Efficacy of traditional Chinese exercise on postmenopausal osteoporosis: a systematic review and meta-analysis.Journal of orthopaedic surgery and research · 2024Pooled it
- Association of dietary inflammatory index and the SARS-CoV-2 infection incidence, severity and mortality of COVID-19: a systematic review and dose-response meta-analysis.Nutrition journal · 2024Pooled it
- Pooled it
- Relevance of Mediterranean diet as a nutritional strategy in diminishing COVID-19 risk: A systematic review.PloS one · 2024Pooled it
- The effect of adherence to high-quality dietary pattern on COVID-19 outcomes: A systematic review and meta-analysis.Journal of medical virology · 2023Pooled it
- The Potential of Plant-Based Lifestyle Interventions to Reduce the Burden of Disease in a Multi-Crisis Era.American journal of lifestyle medicine · 2026Article
- Bridging the prevention gap: funding distribution and methodological shifts in prevention-focused biomedical research under EU framework programmes.Journal of translational medicine · 2025Article
- Article
- Long-term gastrointestinal and hepatobiliary outcomes of COVID-19: A multinational population-based cohort study from South Korea, Japan, and the UK.Clinical and molecular hepatology · 2024Article
- Comparison of DASH diet score and total antioxidant capacity of diet on serum levels of TMPRSS-2, inflammatory biomarkers, and disease severity in COVID-19 patients: A case-control study.Food science & nutrition · 2024Article
- The Association between Lifestyle Factors and COVID-19: Findings from Qatar Biobank.Nutrients · 2024Article
- Association of major dietary patterns with socioeconomic status, obesity, and contracting COVID-19 among Iranian adults.Frontiers in nutrition · 2024Article
- Non-pharmacological therapy for chemotherapy-induced peripheral neurotoxicity: a network meta-analysis of randomized controlled trials.BMC neurology · 2023Article
- The Intersection Between COVID-19, Cardiovascular Disease, and Diet: a Review.Current atherosclerosis reports · 2023Review
- Effectiveness of platelet-rich plasma in the treatment of Achilles tendon disease.World journal of orthopedics · 2023Article
- Impact of COVID-19 Infection on Cardiorespiratory Fitness, Sleep, and Psychology of Endurance Athletes-CAESAR Study.Journal of clinical medicine · 2023Article
- Interferon-lambda: New role in intestinal symptoms of COVID-19.World journal of gastroenterology · 2023Review
- Acute liver injury in a COVID-19 infected woman with mild symptoms: A case report.World journal of clinical cases · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 7 institutions in 4 countries.
Funding
Abstract
Dietary quality and patterns may influence SARS-CoV-2 infection and outcomes, but scientific data and evidence to support such a role are lacking. Therefore, this meta-analysis aims to elucidate the effect of prepandemic diet quality on the risk of COVID-19 infection and hospitalization. PubMed/MEDLINE, CENTRAL, Scopus, and EMBASE were systematically searched for articles published up to September 1, 2022. A systematic review and meta-analysis were performed to calculate each outcome's risk ratio (RR) and 95% confidence interval (CI). Five studies including 4 023 663 individuals (3 149 784 high-quality diet individuals and 873 881 controls) were included in the present meta-analysis. The effectiveness of high-quality dietary pattern against SARS-CoV-2 infection and hospitalization was 28% (95% CI 19%-36%) and 62% (95% CI 25%-80%); respectively. Subgroup analysis based on different levels of diet quality showed no difference between middle and high levels of diet quality in reducing the risk of COVID-19 infection. Interestingly, subgroup analysis based on the different types of high-quality diets and the risk of COVID-19 infection revealed that the effectiveness of plant-based diet against SARS-CoV-2 infection was 50% (95% CI 30%-65%); while the effectiveness of Mediterranean diet against SARS-CoV-2 infection was 22% (95% CI 12%-31%). Adherence to a high-quality dietary pattern is associated with a lower risk of COVID-19 infection and hospitalization. More studies are required to confirm these findings, and future studies should determine the biological mechanisms underlying the association between diet quality and risk of COVID-19 infection.
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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.