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Randomized Controlled Trial
. 2020 Jan-Dec:35:1533317519885264.
doi: 10.1177/1533317519885264.

Effect of Self-Efficacy on Quality of Life in People With Mild Cognitive Impairment and Mild Dementia: The Mediating Roles of Depression and Anxiety

Johanne B Tonga  1   2   3 , Dag-Erik Eilertsen  3 , Ingrid K Ledel Solem  4   5 , Espen A Arnevik  6 , Maria S Korsnes  1   3 , Ingun D Ulstein  7
Affiliations
Randomized Controlled Trial

Effect of Self-Efficacy on Quality of Life in People With Mild Cognitive Impairment and Mild Dementia: The Mediating Roles of Depression and Anxiety

Johanne B Tonga et al. Am J Alzheimers Dis Other Demen. 2020 Jan-Dec.

Abstract

Objectives: To examine the mediating effects of depression and anxiety in the relationship between self-efficacy and quality of life among people with mild cognitive impairment (MCI) or mild dementia.

Method: A total of 196 patients diagnosed with MCI or dementia due to Alzheimer disease completed structured measures of self-efficacy, quality of life, and depressive and anxiety symptoms. We examined direct and mediated effects by fitting structural equation models to data.

Results: Our analyses supported that the effects of self-efficacy on quality of life may be partially mediated by depression and anxiety. Both anxiety and depression had significant mediating effects, with depression showing a stronger effect.

Conclusion: These results suggest that increased self-efficacy may have a positive effect on quality of life in people with MCI or dementia-partly by reducing depression and anxiety. These findings may have important practical implications for tailoring therapeutic interventions.

Keywords: Alzheimer disease; dementia; depression; mild cognitive impairment; self-efficacy.

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Conflict of interest statement

The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Figures

Figure 1.
Figure 1.
The effect of general self-efficacy on quality of life in Alzheimer’s disease mediated by depression measured by Montgomery-Åsberg Depression Rating Scale. Numbers on arrows are standardized regression coefficients, and italicized numbers indicate the explained variance in latent and observed variables.
Figure 2.
Figure 2.
The effect of general self-efficacy on quality of life in Alzheimer’s disease mediated by depression measured by Hospital Anxiety and Depression Scale-Depression. Numbers on arrows are standardized regression coefficients, and italicized numbers indicate the explained variance in latent and observed variables.
Figure 3.
Figure 3.
The effect of general self-efficacy on quality of life in Alzheimer’s disease mediated by anxiety measured by Hospital Anxiety and Depression Scale-Anxiety. Numbers on arrows are standardized regression coefficients, and italicized numbers indicate the explained variance in latent and observed variables.
See this image and copyright information in PMC

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