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Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay (MIND) Diet and Cognitive Function and its Decline: A Prospective Study and Meta-analysis of Cohort Studies
Huang L, Tao Y, Chen H, Chen X, Shen J, Zhao C, Xu X, He M et al.. The American journal of clinical nutrition, 2023-04-25
Topic: Risk, prevention and care in population studies
Background Evidence on the association of the Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay (MIND) diet with cognitive aging is limited and inconsistent. Objectives We examined how the MIND diet is related to cognitive function and its decline among middle-aged and older adults. Methods We included 4066 participants with baseline dietary assessment and ≥1 cognitive test from the China Health and Nutrition Survey in 1997, 2000, 2004, and 2006, with a median follow-up of 3 y. The modified MIND diet score (range: 0-12) was calculated based on 9 healthy and 3 unhealthy food groups. Linear mixed-effect models were used to examine the association of adherence to the MIND diet with z-scores of cognitive function and cognitive decline. We also conducted a meta-analysis including our findings and 7 other cohort studies. Results At baseline, the median MIND diet scores across increasing tertile were 3.0, 4.0, and 5.5, respectively. Participants with higher MIND diet scores had better global cognitive function. The adjusted difference in global cognitive function z-score for every 3-point increment of MIND diet scores was 0.110 [95% confidence interval (CI), 0.060, 0.159, P-trend < 0.001], which was approximately equivalent to being 1 y younger in age. Consumption of nuts, fish, red meats, and tea showed independent positive associations with cognitive function, while fried food consumption exhibited inverse associations. In the meta-analysis of 26,103 participants, one standardized deviation increment of the MIND score was associated with 0.042 (95% CI: 0.020, 0.065) units higher in global cognitive function z-score and 0.010 (95% CI: -0.001, 0.021) units slower in annual cognitive decline. Conclusions Our findings suggest that higher adherence to the MIND diet was associated with better cognitive function and potentially slower cognitive decline in later life. Further large-scale observational and interventional studies are warranted to elucidate the cognitive effects of the MIND diet. This meta-analysis was registered at PROSPERO as CRD42022330417.
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APA 7th
Huang, L., Tao, Y., Chen, H., Chen, X., Shen, J., Zhao, C., et al. (2023). Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay (MIND) Diet and Cognitive Function and its Decline: A Prospective Study and Meta-analysis of Cohort Studies. The American journal of clinical nutrition. https://doi.org/10.1016/j.ajcnut.2023.04.025
Vancouver
Huang L, Tao Y, Chen H, Chen X, Shen J, Zhao C, et al. Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay (MIND) Diet and Cognitive Function and its Decline: A Prospective Study and Meta-analysis of Cohort Studies. The American journal of clinical nutrition. 2023. doi:10.1016/j.ajcnut.2023.04.025. PMID: 37105521.
BibTeX
@article{huang2023-37105521,
author = {Huang, L. and Tao, Y. and Chen, H. and Chen, X. and Shen, J. and Zhao, C. and Xu, X. and He, M. and others},
title = {{Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay (MIND) Diet and Cognitive Function and its Decline: A Prospective Study and Meta-analysis of Cohort Studies}},
journal = {The American journal of clinical nutrition},
year = {2023},
doi = {10.1016/j.ajcnut.2023.04.025},
pmid = {37105521},
url = {https://doi.org/10.1016/j.ajcnut.2023.04.025}
}
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Key findings
- We also conducted a meta-analysis including our findings and 7 other cohort studies.
- Results At baseline, the median MIND diet scores across increasing tertile were 3.0, 4.0, and 5.5, respectively.
- In the meta-analysis of 26,103 participants, one standardized deviation increment of the MIND score was associated with 0.042 (95% CI: 0.020, 0.065) units higher in global cognitive function z-score and 0.010 (95% CI: -0.001, 0.021) units slower in annual cognitive decline.
- Conclusions Our findings suggest that higher adherence to the MIND diet was associated with better cognitive function and potentially slower cognitive decline in later life.
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Study details
- Study designmeta-analysis
- Participants4,066
- Evidence strengthHigh
How this study scored 78/100
Published in a peer-reviewed journal, and it is a meta-analysis pooling many studies. Scored zero for effect reported because the record does not state it. We have no data on journal's citation record, times cited, citations per year, impact for its field and year, cited by studies here, still being cited, senior author's track record, institution's track record and multi-centre collaboration, so those were left out: it earned 45 of the 58 points we could judge it on, which is 78 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (The American journal of clinical nutrition) |
| Journal's citation record | — / 4 | No journal record from OpenAlex — left out of this score |
| Study design | 12 / 12 | A meta-analysis pooling many studies |
| Strength of evidence | 5 / 5 | Rated “high” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 3 / 5 | 2023 — within 6 year(s) of the newest study here |
| Sample size | 3 / 4 | 4,066 participants |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 3 / 3 | Studied in people (participant count stated) |
| Randomised / blinded | 0 / 2 | A review of other studies — randomisation is not credited here |
| Times cited | — / 7 | No citation count (not found in OpenAlex) — left out of this score |
| Citations per year | — / 5 | No citation count or no year — left out of this score |
| Impact for its field and year | — / 6 | No field-weighted citation impact (OpenAlex has none yet) — left out of this score |
| Cited by studies here | — / 6 | Not yet checked against this library's citation graph — left out of this score |
| Still being cited | — / 4 | No yearly citation counts — left out of this score |
| Senior author's track record | — / 4 | Senior author's record not available — left out of this score |
| Institution's track record | — / 3 | No institution listed in OpenAlex — left out of this score |
| Multi-centre collaboration | — / 3 | Institutions not listed — left out of this score |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 37105521) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 45 / 58 | Scored on 11 of 20 parts. We have no data for the rest, so they are left out: 45 of the 58 points we could judge it on is 78 out of 100. |
| Total | 78 / 100 | — |
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