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Predicting functional ability in mild cognitive impairment with the Dementia Rating Scale-2

Published online by Cambridge University Press:  23 January 2012

Melanie C. Greenaway ,
Noah L. Duncan ,
Sherrie Hanna  and
Glenn E. Smith
Melanie C. Greenaway*
Affiliation:
Emory University School of Medicine, Atlanta, Georgia, USA
Noah L. Duncan
Affiliation:
Emory University School of Medicine, Atlanta, Georgia, USA
Sherrie Hanna
Affiliation:
Mayo Clinic, Rochester, Minnesota, USA
Glenn E. Smith
Affiliation:
Mayo Clinic, Rochester, Minnesota, USA
*
Correspondence should be addressed to: Melanie C. Greenaway, PhD, Wesley Woods Health Center/Neurology, Emory University School of Medicine, 1841 Clifton Road NE, Atlanta, GA 30329, USA. Phone: +1404-728-6689; Fax: +1404-728-6685. Email: mcgree3@emory.edu.
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Abstract

Background: We examined the utility of cognitive evaluation to predict instrumental activities of daily living (IADLs) and decisional ability in Mild Cognitive Impairment (MCI).

Methods: Sixty-seven individuals with single-domain amnestic MCI were administered the Dementia Rating Scale-2 (DRS-2) as well as the Everyday Cognition assessment form to assess functional ability.

Results: The DRS-2 Total Scores and Initiation/Perseveration and Memory subscales were found to be predictive of IADLs, with Total Scores accounting for 19% of the variance in IADL performance on average. In addition, the DRS-2 Initiation/Perseveration and Total Scores were predictive of ability to understand information, and the DRS-2 Conceptualization helped predict ability to communicate with others, both key variables in decision-making ability.

Conclusions: These findings suggest that performance on the DRS-2, and specific subscales related to executive function and memory, is significantly related to IADLs in individuals with MCI. These cognitive measures are also associated with decision-making-related abilities in MCI.

Keywords

mild cognitive impairmentcognitive abilityactivities of daily livingdecision-making ability
Type
Research Article
Information
International Psychogeriatrics , Volume 24 , Issue 6 , June 2012 , pp. 987 - 993
Copyright
Copyright © International Psychogeriatric Association 2012

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