Screening for Cognitive Impairment in the Elderly: Impact of Physical Function Measures Added to Cognitive Screening Instruments

Kenneth Rockwood, Dean A. Tripp, Karen Stadnyk, John Fisk

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7 Citas (Scopus)

Resumen

This study examines the relationship between cognitive impairment and impaired physical function to determine if the sensitivity and specificity of the Modified Mini-Mental State Examination (3MS) can be improved by the addition of physical function measures. One hundred and sixty-two subjects from the Nova Scotia sample of the Canadian Study of Health and Aging were studied. Subjects were tested using the 3MS and physical function measures prior to undertaking a detailed clinical examination. Receiver Operating Characteristic (ROC) curves were constructed to determine optimal cutpoints for the 3MS and a new 3MS score which included physical function measures. While the 3MS distinguished demented from unimpaired subjects (.9618), it showed less efficiency for classification of unimpaired subjects and subjects who have cognitive impairment without dementia (.7536). The addition of physical function data increased performance of the 3MS in its ability to discriminate unimpaired from demented subjects (.9854), but not significantly. The relationship between cognitive impairment and functional impairment needs clearer definition in cognitively impaired yet non-demented individuals. The addition of widely used function measures is inadequate in improving the parameters of the 3MS as a screening instrument.

Idioma originalEnglish
Páginas (desde-hasta)261-270
Número de páginas10
PublicaciónAging, Neuropsychology, and Cognition
Volumen1
N.º4
DOI
EstadoPublished - dic. 1 1994

Nota bibliográfica

Funding Information:
The Canadian Study of Health and Aging (CSHA) (Canadian Study of Health and Aging Working Group [CSHAWG], 1994; Eastwood, Nobbs, Lindsay, & McDowell, 1992) provides an example of a two-stage strategy to estimate the prevalence of dementia, using the Modified Mini-Mental State Examination (3MS) as a * This work is funded by the Canadian Study of Health and Aging, which is funded by the Seniors Independence Research Program, Health and Welfare Canada; Ian McDowell, University of Ottawa, Principal Investigator. It was also supported in part by National Health Research Development Program (NHRDP) through a National Health Research Scholar award to Kenneth Rockwood. Address correspondence and reprint requests to Kenneth Rockwood at the Division of Geriatric Medicine, Dalhousie University, 1763 Robie Street, Halifax, N.S., Canada, B3H 3G2. Accepted for publication: July 19, 1994.

ASJC Scopus Subject Areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Geriatrics and Gerontology
  • Psychiatry and Mental health

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