Caregiver-Recipient Closeness and Symptom Progression in Alzheimer's Disease: The Cache County Dementia Progression Study

Document Type

Article

Journal/Book Title/Conference

Journal of Gerontology, Series B

Volume

64B

Issue

5

Publisher

Oxford University Press

Publication Date

2009

First Page

560

Last Page

568

Abstract

Applying Rusbult's investment model of dyadic relationships, we examined the effect of caregiver–care recipient relationship closeness (RC) on cognitive and functional decline in Alzheimer's disease. After diagnosis, 167 participants completed up to six visits, observed over an average of 20 months. Participants were 64% women, had a mean age of 86 years, and mean dementia duration of 4 years. Caregiver-rated closeness was measured using a six-item scale. In mixed models adjusted for dementia severity, dyads with higher levels of closeness (p < .05) and with spouse caregivers (p = .01) had slower cognitive decline. Effect of higher RC on functional decline was greater with spouse caregivers (p = .007). These findings of attenuated Alzheimer's dementia (AD) decline with closer relationships, particularly with spouse caregivers, are consistent with investment theory. Future interventions designed to enhance the caregiving dyadic relationship may help slow decline in AD.

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Originally published by Oxford University Press. Publisher's PDF and HTML fulltext available through remote link.

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