Hostname: page-component-5d59c44645-klj7v Total loading time: 0 Render date: 2024-02-26T02:36:39.594Z Has data issue: false hasContentIssue false

Dementia and Cognitive Impairment in the Oldest Old: A Comparison of Two Rating Methods

Published online by Cambridge University Press:  07 January 2005

Boo Johansson
Affiliation:
Institute for Gerontology, Jönköping, Sweden
Steven H. Zarit
Affiliation:
Department of Human Development and Family Studies, The Pennsylvania State University, University Park, Pennsylvania, U.S.A.

Abstract

Rates of cognitive impairment in a representative population of the oldest old (aged 84 to 90) were examined using two indicators: The Global Deterioration Scale (GDS), and a Cognitive Rating (CR) derived from performance on five neuropsychological tests. Prevalence was estimated at 25.3%, using the GDS, and 30% with the CR. The overall degree of congruence between the measures was high, with most disagreements involving mildly impaired cases. The results indicate a high degree of convergence of clinical and neuropsychological indicators. The findings also confirm high rates of impairment among the oldest old.

Type
Research and Reviews
Copyright
© 1991 Springer Publishing Company

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)