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The relation between morbidity and cognitive performance in a normal aging population

M P van Boxtel1, F Buntinx, P J Houx

  • 1Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands. martin.vanboxtel@np.unimaas.nl

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
|April 1, 1998
PubMed
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Physical health conditions, particularly diabetes and chronic bronchitis, can negatively impact cognitive function in aging adults. These common diseases may worsen age-related cognitive decline, affecting memory and speed.

Area of Science:

  • Gerontology
  • Neuroscience
  • Public Health

Background:

  • Physical health factors are linked to cognitive aging.
  • Existing morbidity is investigated as a predictor of cognitive performance.

Purpose of the Study:

  • To examine the relationship between diagnosed physical health conditions and cognitive test performance.
  • To identify specific diseases that may predict cognitive decline.

Main Methods:

  • 1360 community-dwelling individuals (aged 24-81) were assessed.
  • Morbidity classified using International Classification of Primary Care.
  • Cognitive domains assessed: verbal memory, sensorimotor speed, cognitive flexibility.

Main Results:

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  • Diabetes (both types) negatively associated with all cognitive measures.
  • Chronic bronchitis linked to reduced performance speed; presbycusis linked to memory deficits.
  • Cardiovascular morbidity, including hypertension, showed no association with cognitive performance.

    • Conclusions:

    • Existing morbidity has a modest impact on overall cognitive function variance.
    • Specific conditions like diabetes and chronic bronchitis can exacerbate age-related cognitive decline.