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The GDS/FAST Staging System

Published online by Cambridge University Press:  10 January 2005

Stefanie Auer
Affiliation:
Aging and Dementia Research Center, New York University Medical Center, New York, New York, USA
Barry Reisberg
Affiliation:
Aging and Dementia Research Center, New York University Medical Center, New York, New York, USA

Abstract

Staging methodologies are an essential tool in the assessment of disease severity in progressive dementing illness. Several different instruments have been developed for this purpose. One of the most widely used methodologies is the Global Deterioration Scale/Functional Assessment Staging (GDS/FAST) system. This system has been studied extensively and proven to be reliable and valid for staging dementia in Alzheimer's disease (AD) in diverse settings. One of the major advantages of this system is that it spans, demarcates, and describes the entire course of normal aging and progressive AD until the final substages of the disease process. Other advantages include: (a) greatly enhanced ability to track the longitudinal course of AD, (b) improved clinicopathologic observations of AD interrelationships, and (c) enhanced diagnostic, differential diagnostic, and prognostic information. This article presents a brief overview of the GDS/FAST staging system.

Type
Functional and Global Evaluations
Copyright
© 1997 International Psychogeriatric Association

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