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Prevalence of mild cognitive impairment in an elderly community sample

  • J. Schröder
  • B. Kratz
  • J. Pantel
  • E. Minnemann
  • U. Lehr
  • H. Sauer
Part of the Journal of Neural Transmission. Supplementa book series (NEURAL SUPPL, volume 54)

Summary

The term “mild cognitive impairment” refers to cognitive deficits which exceed normal physiological aging processes, but do not fulfill the criteria for dementia. While recent studies indicate that the respective deficits can be reliably assessed, different diagnostic criteria have prevented a wide application of this diagnosis in clinical practice. The aims of the present study were (1) to assess the prevalence rates of four current diagnostic concepts and (2) to investigate mild cognitive impairment with respect to psychological and sociodemographic variables. Data from 202 probands recruited from the interdisciplinary longitudinal study on adult development were analyzed. On the time of examination, probands were between 60 to 64 years old and in a good health. The following prevalence rates were determined: 13.5% for age-associated memory impairment (AAMI), 6.5% for age-consistent memory impairment (ACMI), 1.5% for late-life forgetfulness (LLF), and 23.5% for aging-associated cognitive decline (AACD). Complaints of cognitive deficits were significantly correlated with higher scores on depression and neuroticism scales but with none of the neuropsychological measures. Reduced performance in neuropsychological tests was associated with a lower educational level and socioeconomic status. We conclude that the prevalence rates of mild cognitive impairment are highly dependant on the diagnostic criteria applied. In this respect the self-report of cognitive decline might be a less useful criteria. Longitudinal studies are warranted to further eludicate the predictive value of these diagnostic criteria.

Keywords

Mild Cognitive Impairment Cognitive Decline Neuropsychological Test Memory Complaint Cognitive Complaint 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag/Wien 1998

Authors and Affiliations

  • J. Schröder
    • 1
    • 4
  • B. Kratz
    • 1
  • J. Pantel
    • 1
  • E. Minnemann
    • 2
  • U. Lehr
    • 2
  • H. Sauer
    • 3
  1. 1.Section of Geriatric Psychiatry, Department of PsychiatryUniversity of HeidelbergFederal Republic of Germany
  2. 2.German Center for Research on Aging, HeidelbergUniversity of JenaJenaFederal Republic of Germany
  3. 3.Department of PsychiatryUniversity of JenaJenaFederal Republic of Germany
  4. 4.Sektion für GerontopsychiatriePsychiatrische UniversitätsklinikHeidelbergFederal Republic of Germany

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