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Caregiver burden, health utilities, and institutional service use in Alzheimer's disease.

Abstract：

OBJECTIVE:This study examined the moderating effect of caregiver burden on the relationship between the health status of Alzheimer's disease (AD) patients and their use of institutional services (i.e., hospitalization, nursing home, and residential care). METHODS:Data were obtained at baseline and at 3, 6, and 9 months following study entry on 421 community-dwelling patients with AD in the Clinical Antipsychotic Trials of Intervention Effectiveness for AD. The outcome variable includes use of any institutional services. Logistic regression was employed to estimate the interaction between Health Utility Index Mark III score (a general health status measure) and four concurrent caregiver burden measures at outcome. Marginal effects were calculated and plotted using random effects models for observations at multiple time points per individual. Average effects were calculated across all observations using models without random effects. RESULTS:Random effects results suggest that caregiver burden weakens the inverse relationship between health utilities and institutional service use, leading to greater likelihood of institutional use than would be expected at a given level of health. This is indicated by positive and significant signs on the Health Utility Index Mark III*caregiver burden interaction when burden is measured using the Caregiver Distress Scale, Beck Depression Inventory, and Caregiver Assessment Survey (all p < 0.05). It is reinforced by positive and significant average effects deriving from Caregiver Distress and Beck Depression Inventory models without random effects (both p < 0.10). Results derived from the Burden Interview Scale, although positive, were non-significant and weak by comparison. CONCLUSION:Caregiver support interventions should be offered to individuals caring for less-advanced AD patients. Otherwise, healthy patients may be at increased risk for institutionalization when caregivers experience high levels of burden.

journal_name

Int J Geriatr Psychiatry

journal_title

International journal of geriatric psychiatry

authors

Miller EA,Rosenheck RA,Schneider LS

doi

10.1002/gps.2730

subject

Has Abstract

pub_date

2012-04-01 00:00:00

pages

382-93

issue

eissn

0885-6230

issn

1099-1166

journal_volume

pub_type

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Caregiver burden, health utilities, and institutional service use in Alzheimer's disease.