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36/100

✓ Peer-reviewed alzhub usefulness score 36 out of 100. Disparities

Topic: Risk, prevention and care in population studies

Dementia cases are projected to triple globally by 2050, largely driven by an aging population. While aging remains the primary risk factor, emerging evidence suggests that diet, including total meat supply, may influence dementia risk. This study investigates the relationship between total meat supply (red and white meat) and dementia incidence using data from 204 countries. Bivariate correlations revealed a significant positive association between total meat supply and dementia incidence globally (r = 0.59, p < 0.001), with a stronger effect observed in low- and middle-income countries (z = 3.92, p < 0.001). Partial correlation analyses and multiple regression models, controlling for aging, economic status, genetic predisposition, and urbanization, confirmed that meat supply remained a significant predictor of dementia (Beta = 0.20, p < 0.001). Aging showed the strongest influence (Beta = 0.79, p < 0.001), underscoring its dominant role. Regional analyses suggested socio-economic disparities, dietary habits, and limited access to diverse nutrition as factors amplifying the association in developing regions. These findings identify total meat supply as a modifiable dietary factor contributing to dementia risk, particularly in resource-constrained settings. Implementing tailored dietary interventions may help reduce dementia incidence globally, especially in vulnerable populations.

Cite this study APA, Vancouver, BibTeX · download .bib or .ris

APA 7th

You, W. (2025). Global patterns linking total meat supply to dementia incidence: A population-based ecological study. AIMS neuroscience. https://doi.org/10.3934/neuroscience.2025012

Vancouver

You W. Global patterns linking total meat supply to dementia incidence: A population-based ecological study. AIMS neuroscience. 2025. doi:10.3934/neuroscience.2025012. PMID: 40717728.

BibTeX

@article{you2025-40717728,
  author  = {You, Wenpeng},
  title   = {{Global patterns linking total meat supply to dementia incidence: A population-based ecological study}},
  journal = {AIMS neuroscience},
  year    = {2025},
  doi     = {10.3934/neuroscience.2025012},
  pmid    = {40717728},
  url     = {https://doi.org/10.3934/neuroscience.2025012}
}

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Key findings

While aging remains the primary risk factor, emerging evidence suggests that diet, including total meat supply, may influence dementia risk.
Bivariate correlations revealed a significant positive association between total meat supply and dementia incidence globally (r = 0.59, p < 0.001), with a stronger effect observed in low- and middle-income countries (z = 3.92, p < 0.001).
Partial correlation analyses and multiple regression models, controlling for aging, economic status, genetic predisposition, and urbanization, confirmed that meat supply remained a significant predictor of dementia (Beta = 0.20, p < 0.001).
These findings identify total meat supply as a modifiable dietary factor contributing to dementia risk, particularly in resource-constrained settings.

Why it matters

This ecological study found a positive association between total meat supply and dementia incidence across 204 countries, with a stronger effect in low- and middle-income countries. It identifies meat supply as a possible modifiable dietary factor, but the design cannot establish cause and effect.

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Study details

Evidence strengthLow

How this study scored 36/100

Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported, studied in people and randomised / blinded because the record does not state it.

Component	Points	Why
Journal tier	7 / 10	Tier 3 — peer-reviewed journal (AIMS neuroscience)
Journal's citation record	0 / 4	AIMS neuroscience: journal h-index 31 (OpenAlex, 2026-10-29)
Study design	0 / 12	No study design recorded — scores zero, not guessed (not stated in the record — scored 0)
Strength of evidence	1 / 5	Rated “low” in our summary
Peer-review validation	10 / 10	Peer-reviewed. Published as an article in a named peer-reviewed journal.
How recent	4 / 5	2025 — within 3 year(s) of the newest study here
Sample size	0 / 4	Participant count not stated — scores zero (not stated in the record — scored 0)
Effect reported	0 / 3	No effect size reported — scores zero (not stated in the record — scored 0)
Studied in people	0 / 3	Not stated whether this was studied in people — scores zero (not stated in the record — scored 0)
Randomised / blinded	0 / 2	No randomisation or blinding stated — scores zero (not stated in the record — scored 0)
Times cited	2 / 7	Cited 6 times (OpenAlex, 2026-10-10)
Citations per year	1 / 5	2.0 citations a year over 3 year(s) since 2025
Impact for its field and year	3 / 6	Cited 3.8× the average for papers of its field and year (OpenAlex FWCI)
Cited by studies here	0 / 6	No other study in this library cites it
Still being cited	1 / 4	Cited 6 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record	1 / 4	Last-listed author Wenpeng You: h-index 16 (OpenAlex, whole career)
Institution's track record	1 / 3	The University of Adelaide: institution h-index 918 (OpenAlex)
Multi-centre collaboration	1 / 3	OpenAlex lists 2 institution(s) in 1 country
Indexed in PubMed	2 / 2	Indexed in PubMed (PMID 40717728)
Free to read	2 / 2	Free to read
Total	36 / 100	—

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