Evidence map›Paper›PMID 24905936›Full record

ArticleEpidemiology and psychiatric sciences2015

Degree of cognitive impairment and mortality: a 17-year follow-up in a community study.

J Santabárbara, R Lopez-Anton, G Marcos, C De-la-Cámara, E Lobo, P Saz, P Gracia-García, T Ventura, A Campayo, L Rodríguez-Mañas and 5 more

Abstract read
In one paragraph

Article in Epidemiology and psychiatric sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

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

  1. Pooled it
  2. Article
  3. Cognitive trajectories in older adults and associated mortality and predictors.Social psychiatry and psychiatric epidemiology · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Cognitive Function and Mortality: Results from Kaunas HAPIEE Study 2006-2017.International journal of environmental research and public health · 2020
    Article
  10. Increasing Burden of Complex Multimorbidity Across Gradients of Cognitive Impairment.American journal of Alzheimer's disease and other dementias · 2017
    Article
  11. Staging cognitive impairment and incidence of dementia.Epidemiology and psychiatric sciences · 2016
    Article
  12. Article
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

15 authors.

J SantabárbaraDepartment of Preventive Medicine and Public Health,Universidad de Zaragoza,Zaragoza,Spain.
R Lopez-AntonCentro de Investigación Biomédica en Red de Salud Mental (CIBERSAM),Ministry of Science and Innovation,Madrid,Spain.
G MarcosDepartment of Preventive Medicine and Public Health,Universidad de Zaragoza,Zaragoza,Spain.
C De-la-CámaraCentro de Investigación Biomédica en Red de Salud Mental (CIBERSAM),Ministry of Science and Innovation,Madrid,Spain.
E LoboDepartment of Preventive Medicine and Public Health,Universidad de Zaragoza,Zaragoza,Spain.
P SazCentro de Investigación Biomédica en Red de Salud Mental (CIBERSAM),Ministry of Science and Innovation,Madrid,Spain.
P Gracia-GarcíaCentro de Investigación Biomédica en Red de Salud Mental (CIBERSAM),Ministry of Science and Innovation,Madrid,Spain.
T VenturaCentro de Investigación Biomédica en Red de Salud Mental (CIBERSAM),Ministry of Science and Innovation,Madrid,Spain.
A CampayoCentro de Investigación Biomédica en Red de Salud Mental (CIBERSAM),Ministry of Science and Innovation,Madrid,Spain.
L Rodríguez-MañasHospital Universitario de Getafe and Red Tematica de Investigacion Cooperativa en Envejecimiento y Fragilidad (RETICEF),Madrid,Spain.
B OlayaCentro de Investigación Biomédica en Red de Salud Mental (CIBERSAM),Ministry of Science and Innovation,Madrid,Spain.
J M HaroCentro de Investigación Biomédica en Red de Salud Mental (CIBERSAM),Ministry of Science and Innovation,Madrid,Spain.
L Salvador-CarullaCentre for Disability Research and Policy,Faculty of Health Sciences,University of Sydney,Sydney,Australia.
N SartoriusAssociation for the Improvement of Mental Health Programmes (AMH),Geneva,Switzerland.
A LoboCentro de Investigación Biomédica en Red de Salud Mental (CIBERSAM),Ministry of Science and Innovation,Madrid,Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo test the hypothesis that cognitive impairment in older adults is associated with all-cause mortality risk and the risk increases when the degree of cognitive impairment augments; and then, if this association is confirmed, to report the population-attributable fraction (PAF) of mortality due to cognitive impairment.

methodA representative random community sample of individuals aged over 55 was interviewed, and 4557 subjects remaining alive at the end of the first year of follow-up were included in the analysis. Instruments used in the assessment included the Mini-Mental Status Examination (MMSE), the History and Aetiology Schedule (HAS) and the Geriatric Mental State (GMS)-AGECAT. For the standardised degree of cognitive impairment Perneczky et al's MMSE criteria were applied. Mortality information was obtained from the official population registry. Multivariate Cox proportional hazard models were used to test the association between MMSE degrees of cognitive impairment and mortality risk. We also estimated the PAF of mortality due to specific MMSE stages.

resultsCognitive impairment was associated with mortality risk, the risk increasing in parallel with the degree of cognitive impairment (Hazard ratio, HR: 1.18 in the 'mild' degree of impairment; HR: 1.29 in the 'moderate' degree; and HR: 2.08 in the 'severe' degree). The PAF of mortality due to severe cognitive impairment was 3.49%.

conclusionsA gradient of increased mortality-risk associated with severity of cognitive impairment was observed. The results support the claim that routine assessment of cognitive function in older adults should be considered in clinical practice.

Indexed as

Cognitive impairmentMini Mental Status Examinationmortalitypopulation-attributable fraction

Identifiers

PMID24905936
PMCPMC8367364

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Registered trials

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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.