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Related Experiment Videos

Cognitive performance and three-year mortality in the PAQUID elderly study

C Berr1, J F Dartigues, A Alpérovitch

  • 1INSERM U 360, Villejuif, France.

Revue D'Epidemiologie Et De Sante Publique
|January 1, 1994
PubMed
Summary

Low cognitive performance independently predicts mortality in older adults. Even without dementia, individuals with poorer cognitive function face significantly higher death risks, highlighting cognition

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Area of Science:

  • Gerontology
  • Cognitive Science
  • Epidemiology

Background:

  • Cognitive decline is a concern in aging populations.
  • Identifying predictors of mortality in the elderly is crucial for public health.
  • Previous research has explored various risk factors for mortality in older adults.

Purpose of the Study:

  • To determine if low cognitive performance is an independent predictor of mortality in non-demented elderly individuals.
  • To assess the relationship between cognitive function and mortality risk in a cohort of older adults.
  • To investigate the predictive value of cognitive tests for all-cause mortality.

Main Methods:

  • A sub-sample of 2149 non-demented elderly individuals (aged 65+) from the PAQUID cohort was selected.
  • Cognitive function was assessed using a battery of 6 psychometric tests at baseline.

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  • Mortality was tracked over the first three years of follow-up, with multivariate logistic regression used for analysis.

    • Main Results:

    • Mortality rates increased with age and were linked to factors like education, gender, smoking, chronic diseases, and medication use.
    • Individuals in the lowest quartiles of cognitive test scores exhibited significantly higher mortality rates.
    • After adjusting for confounders, the lowest overall cognitive performance was associated with an odds ratio of 3.5 for mortality.

    Conclusions:

    • Low cognitive performance is an independent predictor of mortality in non-demented elderly individuals.
    • Cognitive function assessment can aid in identifying older adults at higher risk of death.
    • These findings underscore the importance of maintaining cognitive health in later life.