Evidence map›Paper›PMID 39844303›Full record

Observational studyAlzheimer's research & therapy2025

Exploring sex differences in Alzheimer's disease: a comprehensive analysis of a large patient cohort from a memory unit.

Maitee Rosende-Roca, Fernando García-Gutiérrez, Yahveth Cantero-Fortiz, Montserrat Alegret, Vanesa Pytel, Pilar Cañabate, Antonio González-Pérez, Itziar de Rojas, Liliana Vargas, Juan Pablo Tartari and 12 more

Abstract readObservational StudyClinical Study
In one paragraph

Observational study in Alzheimer's research & therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Elevated temporal tau PET predicts faster cognitive decline in women than men: A meta-analysis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. FSH Signaling in Osteoporosis and Alzheimer's Disease.Current osteoporosis reports · 2026
    Review
  8. Genetic risk in Alzheimer's disease.NPJ systems biology and applications · 2026
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
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  15. Article
  16. Beyond Neuroinflammation: Microglia at the Crossroads of Amyloid, Tau, and Neurodegeneration in Alzheimer's Disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Review
  17. Review
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

22 authors.

Maitee Rosende-RocaAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Fernando García-GutiérrezAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Yahveth Cantero-FortizAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Montserrat AlegretAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Vanesa PytelAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Pilar CañabateAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Antonio González-PérezAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Itziar de RojasAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Liliana VargasAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Juan Pablo TartariAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Ana EspinosaAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Gemma OrtegaAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Alba Pérez-CordónAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Mariola MorenoAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Sílvia PrecklerAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Susanna SeguerAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Miren Jone GurruchagaAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Lluís TárragaAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Agustín RuizAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Sergi ValeroAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Mercè BoadaAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain.
Marta MarquiéAce Alzheimer Center Barcelona - Universitat Internacional de Catalunya, Gran Via Carles III 85 BIS, Barcelona, 08028, Spain. mmarquie@fundacioace.org.

Funding

European Union Joint Programme - Neurodegenerative Disease Research (JPND) Multinational research projects on Personalized Medicine for Neurodegenerative Diseases/Instituto de Salud Carlos III AC19/00097Instituto de Salud Carlos III (ISCIII) FI20/00215Instituto de Salud Carlos III (ISCIII) Acción Estratégica en Salud PI17/01474Instituto de Salud Carlos III (ISCIII) Acción Estratégica en Salud PI19/00335Instituto de Salud Carlos III (ISCIII) Acción Estratégica en Salud PI22/01403
6 · The paper itself

Abstract

backgroundAlzheimer's disease (AD) stands as the leading cause of dementia worldwide, and projections estimate over 150 million patients by 2050. AD prevalence is notably higher in women, nearly twice that of men, with discernible sex differences in certain risk factors. To enhance our understanding of how sex influences the characteristics of AD patients and its potential impact on the disease trajectory, we conducted a comprehensive analysis of demographic, clinical, cognitive, and genetic data from a sizable and well-characterized cohort of AD dementia patients at a memory clinic in Barcelona, Spain.

methodsThe study cohort comprised individuals with probable and possible AD dementia with a Clinical Dementia Rating (CDR) score between 1 and 3 diagnosed at the Memory Unit from Ace Alzheimer Center Barcelona, Spain, between 2008 and 2018. We obtained cognitive baseline data and follow up scores for the Mini-Mental State Examination (MMSE), the CDR scale, and the neuropsychological battery used in our center (NBACE). We employed various statistical techniques to assess the impact of sex on cognitive evolution in these dementia patients, accounting for other sex-related risk factors identified through Machine Learning methods.

resultsThe study cohort comprised a total of 6108 individuals diagnosed with AD dementia during the study period (28.4% males and 71.6% females). MMSE scores exhibited an average decline of approximately two units per year, unaffected by sex. Similarly, the decline in most neuropsychological functions assessed by NBACE did not exhibit significant differences between males and females. However, we observed that women diagnosed with mild AD dementia progressed more rapidly based on their CDR score (HR = 2.57, 95%CI:2.33-2.84) than men (HR = 2.03, 95%CI: 1.71-2.41) (p-interaction = 0.01).

conclusionsOur findings do not strongly support the notion that sex significantly modifies the clinical progression of AD dementia based on cognitive data. Further research is essential to validate whether women with mild AD dementia indeed progress more rapidly than men at a similar stage and to delve into the potential underlying reasons for this finding.

Indexed as

Alzheimer DiseaseSex CharacteristicsAgedAged, 80 and overCohort StudiesDisease ProgressionFemaleHumansMaleMental Status and Dementia TestsNeuropsychological TestsRisk FactorsSex FactorsSpainAlzheimer’s diseaseDementiaProgressionSexWomen

Identifiers

PMID39844303
PMCPMC11753069

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.