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This page is alzhub.org's plain-English summary of a published study, not the paper itself. It is generated from the record we hold for this study, sourced and linked below — check the original for the full text and methods.

✓ Peer-reviewed alzhub usefulness score 54 out of 100. Brain scans and imaging

Topic: Risk, prevention and care in population studies

Heart failure is a risk factor for Alzheimer's disease and cerebrovascular disease. In the absence of heart failure, it was hypothesized that left ventricular ejection fraction (LVEF), an indicator of cardiac dysfunction, would be associated with preclinical brain magnetic resonance imaging (MRI) and neuropsychological markers of ischemia and Alzheimer disease in the community. Brain MRI, cardiac MRI, neuropsychological, and laboratory data were collected from 1,114 Framingham Heart Study Offspring Cohort participants free from clinical stroke or dementia (aged 40 to 89 years, mean age 67 ± 9 years, 54% women). Neuropsychological and neuroimaging markers of brain aging were related to cardiac MRI-assessed LVEF. In multivariable-adjusted linear regressions, LVEF was not associated with any brain aging variable (p values >0.15). However, LVEF quintile analyses yielded several U-shaped associations. Compared to the referent (quintile 2 to 4), the lowest quintile (quintile 1) LVEF was associated with lower mean cognitive performance, including Visual Reproduction Delayed Recall (β = -0.27, p <0.001) and Hooper Visual Organization Test (β = -0.27, p <0.001). Compared to the referent, the highest quintile (quintile 5) LVEF values also were associated with lower mean cognitive performance, including Logical Memory Delayed Recall (β = -0.18, p = 0.03), Visual Reproduction Delayed Recall (β = -0.17, p = 0.03), Trail Making Test Part B - Part A (β = -0.22, p = 0.02), and Hooper Visual Organization Test (β = -0.20, p = 0.02). Findings were similar when analyses were repeated excluding prevalent cardiovascular disease. In conclusion, although these observational cross-sectional data cannot establish causality, they suggest a nonlinear association between LVEF and measures of accelerated cognitive aging.

Key findings

Why it matters

In this cross-sectional study, left ventricular ejection fraction was not associated with any brain aging variable in multivariable-adjusted linear regressions. Quintile analyses showed some U-shaped associations, with both the lowest and highest quintiles linked to lower mean cognitive performance.

Study details

How this study scored 54/100
How this study's score is builtJournal tier 7 of 10; Journal's citation record 3 of 4; Study design 4 of 12; Strength of evidence 3 of 5; Peer-review validation 10 of 10; How recent 1 of 5; Sample size 0 of 4; Effect reported 0 of 3; Studied in people 0 of 3; Randomised / blinded 0 of 2; Times cited 5 of 7; Citations per year 3 of 5; Impact for its field and year 3 of 6; Cited by studies here 2 of 6; Still being cited 2 of 4; Senior author's track record 4 of 4; Institution's track record 3 of 3; Multi-centre collaboration 2 of 3; Indexed in PubMed 2 of 2; Free to read 0 of 2. Total 54 of 100.54 of 100 points earned46 not earned

Published in a peer-reviewed journal, and it is a snapshot of people at one point in time. Scored zero for sample size, effect reported, studied in people and randomised / blinded because the record does not state it.

ComponentPointsWhy
Journal tier 7 / 10 Tier 3 — peer-reviewed journal (The American journal of cardiology)
Journal's citation record 3 / 4 The American Journal of Cardiology: journal h-index 352 (OpenAlex, 2026-10-29)
Study design 4 / 12 A snapshot of people at one point in time
Strength of evidence 3 / 5 Rated “moderate” in our summary
Peer-review validation 10 / 10 Peer-reviewed. Published as an article in a named peer-reviewed journal.
How recent 1 / 5 2011 — within 20 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 5 / 7 Cited 144 times (OpenAlex, 2026-10-10)
Citations per year 3 / 5 8.5 citations a year over 17 year(s) since 2011
Impact for its field and year 3 / 6 Cited 6.7× the average for papers of its field and year (OpenAlex FWCI)
Cited by studies here 2 / 6 Cited by 5 other studies in this library
Still being cited 2 / 4 Cited 15 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record 4 / 4 Last-listed author Emelia J. Benjamin: h-index 204 (OpenAlex, whole career)
Institution's track record 3 / 3 Harvard University: institution h-index 3,235 (OpenAlex)
Multi-centre collaboration 2 / 3 OpenAlex lists 5 institution(s) in 1 country
Indexed in PubMed 2 / 2 Indexed in PubMed (PMID 21880293)
Free to read 0 / 2 Behind a paywall — scores zero
Total 54 / 100 —

What each of these 20 components measures, and what this score is not →

Read the original

Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).

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

Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. The record's author list ends in “et al.”, so not every author is named. Check the citation against the original before you use it.

APA 7th

Jefferson, A. L., Himali, J. J., Au, R., Seshadri, S., Decarli, C., O'Donnell, C. J., et al. (2011). Relation of left ventricular ejection fraction to cognitive aging (from the Framingham Heart Study). The American journal of cardiology. https://doi.org/10.1016/j.amjcard.2011.06.056

Vancouver

Jefferson AL, Himali JJ, Au R, Seshadri S, Decarli C, O'Donnell CJ, et al. Relation of left ventricular ejection fraction to cognitive aging (from the Framingham Heart Study). The American journal of cardiology. 2011. doi:10.1016/j.amjcard.2011.06.056. PMID: 21880293.

BibTeX

@article{jefferson2011-21880293,
  author  = {Jefferson, A. L. and Himali, J. J. and Au, R. and Seshadri, S. and Decarli, C. and O'Donnell, C. J. and Wolf, P. A. and Manning, W. J. and others},
  title   = {{Relation of left ventricular ejection fraction to cognitive aging (from the Framingham Heart Study)}},
  journal = {The American journal of cardiology},
  year    = {2011},
  doi     = {10.1016/j.amjcard.2011.06.056},
  pmid    = {21880293},
  url     = {https://doi.org/10.1016/j.amjcard.2011.06.056}
}

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