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What are subjective cognitive difficulties and do they matter?

Opdebeeck, Carol; Yates, Jennifer Ann; Kudlicka, Aleksandra; Martyr, Anthony

What are subjective cognitive difficulties and do they matter? Thumbnail


Authors

Carol Opdebeeck

JEN YATES Jen.Yates@nottingham.ac.uk
Assistant Professor in Mental Health

Aleksandra Kudlicka

Anthony Martyr



Abstract

Background

Subjective cognitive difficulties (SCD) have been associated with a higher risk of developing dementia. However, there is large variation in the way SCD are assessed and in their associations with cognitive functioning.

Objective

To compare the agreement of different SCD measures in identifying people with SCD and to investigate whether SCD are more strongly associated with cognitive functioning, mood, subjective age or background variables.

Methods

This cross-sectional study included 206 community-dwelling people aged ?65. SCD were assessed with individual domain specific questions and a multiple-item scaled measure. Performance on tests of memory, attention, and executive function, and ratings of mood, subjective age and demographic information were recorded.

Results

There was some classification overlap between the five measures of SCD, however of the 64 people identified as having SCD, only one person appeared in all five measures of SCD and 34 people were classified by one measure only. There were limited associations between SCD and objective cognition, with more consistent associations with mood and subjective age.

Conclusions

The conflicting evidence regarding whether SCD are related to objective cognition and future risk of dementia may be due to different measures of SCD being employed. Careful consideration and standardisation is recommended regarding the cognitive domains and the reference groups for comparison, the response structure and the classification criteria. Longitudinal studies of SCD that include these considerations are needed to clarify the conceptual utility of SCD.

Journal Article Type Article
Acceptance Date Aug 31, 2018
Online Publication Date Sep 26, 2018
Publication Date Sep 26, 2018
Deposit Date Oct 26, 2018
Publicly Available Date Sep 27, 2019
Journal Age and Ageing
Print ISSN 0002-0729
Electronic ISSN 1468-2834
Publisher Oxford University Press (OUP)
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1093/ageing/afy148
Keywords Cognition; Depression; Subjective cognitive complaints; Subjective cognitive decline; Subjective ageing
Public URL https://nottingham-repository.worktribe.com/output/1195727
Publisher URL https://academic.oup.com/ageing/advance-article/doi/10.1093/ageing/afy148/5107352