Evidence map›Paper›PMID 33827690›Full record

ArticleAlzheimer's research & therapy2021

Baseline cognition is the best predictor of 4-year cognitive change in cognitively intact older adults.

Jolien M Schaeverbeke, Silvy Gabel, Karen Meersmans, Emma S Luckett, Steffi De Meyer, Katarzyna Adamczuk, Natalie Nelissen, Valerie Goovaerts, Ahmed Radwan, Stefan Sunaert and 3 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
5.3field-weighted citation impact, top 3% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Article
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  4. Minor neuropsychological deficits and stage 2 of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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  17. Development and Validation of a Vocabulary Measure in the Mobile Toolbox.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 3 institutions in 2 countries.

Jolien M SchaeverbekeLaboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
Silvy GabelLaboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
Karen MeersmansLaboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
Emma S LuckettLaboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
Steffi De MeyerLaboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
Katarzyna AdamczukLaboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
Natalie NelissenLaboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
Valerie GoovaertsNeurology Department, University Hospitals Leuven, Herestraat 49, Leuven, 3000, Belgium.
Ahmed RadwanTranslational MRI, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium.
Stefan SunaertTranslational MRI, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium.
Patrick DupontLaboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
Koen Van LaereNuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven and Division of Nuclear Medicine, University Hospitals Leuven, Leuven, Belgium.
Rik VandenbergheLaboratory for Cognitive Neurology, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium. rik.vandenberghe@uzleuven.be.ORCID 0000-0001-6237-2502
VIB-KU Leuven Center for Brain & Disease Research · BEKU Leuven · BEAllen Institute for Brain Science · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe examined in cognitively intact older adults the relative weight of cognitive, genetic, structural and amyloid brain imaging variables for predicting cognitive change over a 4-year time course.

methodsOne hundred-eighty community-recruited cognitively intact older adults (mean age 68 years, range 52-80 years, 81 women) belonging to the Flemish Prevent Alzheimer's Disease Cohort KU Leuven (F-PACK) longitudinal observational cohort underwent a baseline evaluation consisting of detailed cognitive assessment, structural MRI and

resultsA base model of age and sex explained 18.5% of variance in episodic memory decline. This increased to 41.6% by adding baseline episodic memory scores. Adding amyloid load or volumetric measures explained only a negligible additional amount of variance (increase to 42.2%). A mediation analysis indicated that the effect of age on episodic memory scores was partly direct and partly mediated via hippocampal volume. Amyloid load did not play a significant role as mediator between age, hippocampal volume and episodic memory decline.

conclusionIn cognitively intact older adults, the strongest baseline predictor of subsequent episodic memory decline was the baseline episodic memory score. When this score was included, only very limited explanatory power was added by brain volume or amyloid load measures. The data warn against classifications that are purely biomarker-based and highlight the value of baseline cognitive performance levels in predictive models.

Indexed as

Alzheimer DiseaseCognitive DysfunctionAgedAged, 80 and overAmyloid beta-PeptidesCognitionFemaleHumansLongitudinal StudiesMiddle AgedNeuropsychological TestsPositron-Emission TomographyAmyloid beta-PeptidesAgeingAlzheimer’s diseaseCognitive declineMediationPreclinical

Identifiers

PMID33827690
PMCPMC8028179
OpenAlexW3116768774

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.