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Int J Older People Nurs. 2015 Mar;10(1):14-26. doi: 10.1111/opn.12043. Epub 2014 Jan 17.

Depression in informal caregivers of persons with dementia.

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1
College of Nursing, University of South Florida, Tampa, FL, USA.

Abstract

BACKGROUND:

Worldwide, there are more than 35 million individuals diagnosed with Alzheimer's disease. Many of these individuals are cared for at home by unpaid caregivers who often report high levels of depressive symptoms and depression. The majority of studies conducted to predict which caregivers are at risk for depression have examined non-modifiable risk factors. Therefore, it is important to discover modifiable factors that may be associated with risk for depression in caregivers.

OBJECTIVES:

The aims of this research were to identify a set of factors that are modifiable and known to be associated with high levels of depression/depressive symptomology (D/DS) in other populations and to determine whether these factors are predictive of D/DS after controlling for non-modifiable, demographic, and clinical factors.

DESIGN:

Secondary data analysis.

METHODS:

Fifty-three participants provided direct care to a person with dementia with night-time activity. Inclusion criteria included not undergoing treatment for sleep disorders; living with the care recipient; and a Mini-Mental Status Exam score > 27. Baseline data collected by questionnaires, sleep diary and actigraphy.

RESULTS:

In multivariate analyses of the modifiable factors, only high levels of negative affect predicted higher levels of depressive symptomatology. When non-modifiable factors were included in the model, negative affect and high levels of perceived caregiver burden predicted 52.6% of the variance in depressive symptomology. In secondary analyses, wake after sleep onset misperception was associated with higher depression scores.

CONCLUSIONS:

While negative affect had a moderate effect on depressive symptoms, modifiable factors often associated with depressive symptoms in other studies were not associated with caregiver depression in this study. Possibly caregivers' overall poor sleep causes a floor effect and masks a potential relationship.

IMPLICATIONS FOR PRACTICE:

Both caregivers' affect and perceived burden are strongly related to depressive symptoms, so healthcare practitioners need to frequently assess both so as to provide timely interventions.

KEYWORDS:

Alzheimer's disease; affect; carers; dementia; depression; sleep

PMID:
24433320
DOI:
10.1111/opn.12043
[Indexed for MEDLINE]
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