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Effects of intensive lifestyle changes on the progression of mild cognitive impairment or early dementia due to Alzheimer’s disease: the need for rigor
Joshua D. Grill, Daniel L. Gillen. Alzheimer s Research & Therapy, 2025-02-01
Topic: Risk, prevention and care in population studies
Plain-language summary
We consider the recent publication by Ornish and colleagues and the rigor expected for interventional clinical trials. We contend that lifestyle intervention trials should strive for the same rigor as drug trials and highlight opportunities to improve rigor in this example, particularly in design, data analysis, and publication of results for this and other lifestyle intervention studies.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Grill, J. D., & Gillen, D. L. (2025). Effects of intensive lifestyle changes on the progression of mild cognitive impairment or early dementia due to Alzheimer’s disease: the need for rigor. Alzheimer s Research & Therapy. https://doi.org/10.1186/s13195-024-01621-6
Vancouver
Grill JD, Gillen DL. Effects of intensive lifestyle changes on the progression of mild cognitive impairment or early dementia due to Alzheimer’s disease: the need for rigor. Alzheimer s Research & Therapy. 2025. doi:10.1186/s13195-024-01621-6. PMID: 39893378.
BibTeX
@article{grill2025-39893378,
author = {Grill, Joshua D. and Gillen, Daniel L.},
title = {{Effects of intensive lifestyle changes on the progression of mild cognitive impairment or early dementia due to Alzheimer’s disease: the need for rigor}},
journal = {Alzheimer s Research \& Therapy},
year = {2025},
doi = {10.1186/s13195-024-01621-6},
pmid = {39893378},
url = {https://doi.org/10.1186/s13195-024-01621-6}
}
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. Check the citation against the original before you use it.
Key findings
- We contend that lifestyle intervention trials should strive for the same rigor as drug trials and highlight opportunities to improve rigor in this example, particularly in design, data analysis, and publication of results for this and other lifestyle intervention studies.
Why it matters
This commentary argues that lifestyle intervention trials should meet the same rigor as drug trials and points to opportunities to improve rigor in design, data analysis and publication of results. It does not report any new treatment or prevention findings.
Study details
- Evidence strengthLow
How this study scored 33/100
Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported, studied in people and randomized / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Alzheimer s Research & Therapy) |
| Journal's citation record | 1 / 4 | Alzheimer s Research & Therapy: journal h-index 146 (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) |
| Randomized / blinded | 0 / 2 | No randomization or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 1 / 7 | Cited 1 times (OpenAlex, 2026-10-10) |
| Citations per year | 0 / 5 | 0.3 citations a year over 3 year(s) since 2025 |
| Impact for its field and year | 1 / 6 | Cited 0.6× 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 | 0 / 4 | Cited 1 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 3 / 4 | Last-listed author Daniel L. Gillen: h-index 61 (OpenAlex, whole career) |
| Institution's track record | 1 / 3 | University of California, Irvine: institution h-index 1,195 (OpenAlex) |
| Multicenter collaboration | 0 / 3 | OpenAlex lists 1 institution(s) in 1 country — scores zero (affiliation lists can be incomplete) |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 39893378) |
| Free to read | 2 / 2 | Free to read |
| Total | 33 / 100 | — |
What each of these 20 components measures, and what this score is not →
Read the original
- DOI: 10.1186/s13195-024-01621-6
- PubMed: 39893378
- Original source →
- Free full text: Alzheimer s Research & Therapy →
Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).
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