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Subjective Memory Impairment. A review of its definitions indicates the need for a comprehensive set of standardised and validated criteria

Published online by Cambridge University Press:  16 April 2020

Khaled Abdulrab  and
Reinhard Heun
Khaled Abdulrab
Affiliation:
Medical School, University of Birmingham, Birmingham, UK
Reinhard Heun*
Affiliation:
Department of Old Age Psychiatry, University of Birmingham, Birmingham, UK
*
*Corresponding author. Department of Old Age Psychiatry, University of Birmingham, Birmingham B15 2TT, UK. Tel.: +44 121 6782360. E-mail addresses: [email protected], [email protected], [email protected] (R. Heun).
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Abstract

Background

Subjective Memory Impairment (SMI) may hold value in the elderly as a predictor of dementia. There is yet to exist any standard definition of SMI for use in research or for clinical practice.

Objective

This study aims to identify previous and current definitions of SMI used in published research and to propose a set of criteria that may help increase SMI's predictive power of future cognitive decline.

Methods

Literature searches were conducted across a number of electronic databases including Medline.

Results

515 citations were identified, 336 papers were obtained, of which 44 were selected for containing definitions for SMI. These definitions varied widely in terms of the types of questions used to determine SMI and additional features pertaining to memory complaints included in the definition.

Conclusion

There is no consistency in how SMI is defined. We propose a set of criteria aimed to increase specificity of memory complainers for those at increased risk of dementia. Further research is required to refine and validate the different criteria suggested. An international consent on the necessary criteria by experts in the field might be useful.

Keywords

Subjective Memory ImpairmentMemory complaintDementiaAlzheimer's diseaseElderly
Type
Original article
Information
European Psychiatry , Volume 23 , Issue 5 , August 2008 , pp. 321 - 330
Copyright
Copyright © Elsevier Masson SAS 2008

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