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Perceived stress and quality of life in dementia patients and their caregiving spouses: does dyadic coping matter?

Published online by Cambridge University Press:  21 July 2016

Andreas Häusler ,
Alba Sánchez ,
Paul Gellert ,
Friederike Deeken ,
Michael A. Rapp  and
Johanna Nordheim
Andreas Häusler*
Affiliation:
Department of Social and Preventive Medicine, University of Potsdam, Potsdam, Germany
Alba Sánchez
Affiliation:
Gerontology Research Group, Deparment of Medicine, Faculty of Health Sciences, University of A Coruña, A Coruña, Spain
Paul Gellert
Affiliation:
Institute of Medical Sociology and Rehabilitation Science, Charité – Universitätsmedizin Berlin, Berlin, Germany
Friederike Deeken
Affiliation:
Department of Social and Preventive Medicine, University of Potsdam, Potsdam, Germany
Michael A. Rapp
Affiliation:
Department of Social and Preventive Medicine, University of Potsdam, Potsdam, Germany
Johanna Nordheim
Affiliation:
Institute of Medical Sociology and Rehabilitation Science, Charité – Universitätsmedizin Berlin, Berlin, Germany
*
Correspondence should be addressed to: Andreas Häusler, MA, Department of Social and Preventive Medicine, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany. Phone: +49 (0)331/9771050. Email: [email protected].
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Abstract

Background:

Given the well-established association between perceived stress and quality of life (QoL) in dementia patients and their partners, our goal was to identify whether relationship quality and dyadic coping would operate as mediators between perceived stress and QoL.

Methods:

82 dyads of dementia patients and their spousal caregivers were included in a cross-sectional assessment from a prospective study. QoL was assessed with the Quality of Life in Alzheimer's Disease scale (QoL-AD) for dementia patients and the WHO Quality of Life-BREF for spousal caregivers. Perceived stress was measured with the Perceived Stress Scale (PSS-14). Both partners were assessed with the Dyadic Coping Inventory (DCI). Analyses of correlation as well as regression models including mediator analyses were performed.

Results:

We found negative correlations between stress and QoL in both partners (QoL-AD: r = −0.62; p < 0.001; WHO-QOL Overall: r = −0.27; p = 0.02). Spousal caregivers had a significantly lower DCI total score than dementia patients (p < 0.001). Dyadic coping was a significant mediator of the relationship between stress and QoL in spousal caregivers (z = 0.28; p = 0.02), but not in dementia patients. Likewise, relationship quality significantly mediated the relationship between stress and QoL in caregivers only (z = −2.41; p = 0.02).

Conclusions:

This study identified dyadic coping as a mediator on the relationship between stress and QoL in (caregiving) partners of dementia patients. In patients, however, we found a direct negative effect of stress on QoL. The findings suggest the importance of stress reducing and dyadic interventions for dementia patients and their partners, respectively.

Keywords

dementiadyadic copingperceived stressquality of life
Type
Research Article
Information
International Psychogeriatrics , Volume 28 , Issue 11 , November 2016 , pp. 1857 - 1866
Copyright
Copyright © International Psychogeriatric Association 2016 

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