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Normative data for the Mattis Dementia Rating Scale

J A Lucas1, R J Ivnik, G E Smith

  • 1Department of Psychiatry and Psychology, Mayo Foundation, Rochester, MN, USA. jlucas@mayo.edu

Journal of Clinical and Experimental Neuropsychology
|January 19, 1999
PubMed
Summary

New normative data for the Mattis Dementia Rating Scale are available for adults over 55. These age- and education-adjusted norms improve the assessment of general cognitive dysfunction in older populations.

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Area of Science:

  • Neuropsychology
  • Gerontology
  • Cognitive Science

Background:

  • Accurate neuropsychological assessment requires age-appropriate normative data.
  • Existing norms for older adults may not adequately account for demographic factors like education.
  • The Mattis Dementia Rating Scale is a common tool for assessing cognitive function.

Purpose of the Study:

  • To present age-adjusted normative data for the Mattis Dementia Rating Scale in individuals over 55.
  • To provide additional adjustments for the influence of education on test performance.
  • To enhance the utility of the Mattis Dementia Rating Scale for characterizing cognitive dysfunction in older adults.

Main Methods:

  • Data were collected as part of Mayo's Older Americans Normative Studies (MOANS).

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  • Normative data were adjusted for age and the effect of education.
  • The study focused on participants aged 55 and older.

    • Main Results:

    • Age-adjusted normative data for the Mattis Dementia Rating Scale are provided for adults over 55.
    • Education-adjusted scores offer further refinement for interpreting test performance.
    • These norms are intended to be more precise than existing data.

    Conclusions:

    • The presented normative data offer improved characterization of general cognitive dysfunction in older adults.
    • The Mayo's Older Americans Normative Studies (MOANS) provide valuable resources for neuropsychological assessment.
    • These findings support more accurate diagnosis and management of cognitive impairment in the aging population.