Correlates of Sleep Disturbance Experienced by Informal Caregivers of Persons Living with Dementia: A Systematic Review

OBJECTIVES

This study aims to comprehensively review and update the literature concerning the correlates of sleep disturbance among caregivers of persons living with Alzheimer's disease and related dementias to identify gaps in the literature and antecedent targets for interventions.

METHODS

We searched PubMed, CINAHL, PsycINFO, and Embase using terms related to "sleep," "caregiver," and "dementia."

RESULTS

Thirty-six articles were included in this review. Based on the antecedents within the 3P model of insomnia, predisposing factors associated with caregiver sleep included caregiver demographics, and physiological factors like genotype and biomarkers. Precipitating factors related to caregiver sleep included caregiving status and responsibilities, and person living with dementia factors.

CONCLUSIONS

Sleep disturbance is a significant issue for caregivers of persons living with dementia. However, this review has identified multiple precipitating factors that are modifiable targets for interventions to improve or enhance caregiver sleep.

CLINICAL IMPLICATIONS

Numerous predisposing and precipitating factors contribute to caregivers of persons living with dementia being susceptible to sleep disturbance. Healthcare providers should ask patients about their caregiving status during annual visits. Healthcare providers should also evaluate caregivers' sleep patterns, and the predisposing and precipitating factors of sleep disturbance, with a focus on the modifiable factors, to enable timely intervention.

Anxiety and depression in community-dwelling, Italian Alzheimer's disease caregivers

Family caregiving for those who suffer from Alzheimer's disease is an important but understudied area in Italian nursing. Population ageing and the existing burden of care for family caregivers indicate that there will be enormous pressure on families in the future to provide adequate and culturally appropriate care. This study attempted to redress this situation by examining anxiety and depression among 34 female Italian Alzheimer's caregivers over a total of 816 caregiving days. A descriptive, repeated measures design was used, using three instruments to survey caregiving: a General Questionnaire about Caregiving, the Spielberg State-Trait Anxiety Inventory and the Geriatric Depression Scale. Findings indicated that caregivers suffered high levels of anxiety (76%) and depression (42%). Statistical analyses showed that the anxiety and depression scores were positively correlated with hours of care, physical and psychological illness scores, and negatively correlated with level of education and time for leisure activities. However, no significant correlations were found with the Mini Mental State Examination scores, demonstrating that the burden of care is large, irrespective of the extent of mental impairment. Implications of the findings suggest that support and assistance given to Italian caregivers might be inadequate, particularly with respect to respite services and educational support.

Medication Use with Implications for Sleep in Elderly Dementia Caregivers

The purpose of this study was to identify numbers and types of prescription and nonprescription medications, their association with gender and race, and their implications for sleep disturbances in 86 elderly caregivers of patients with dementia. Using measures of central tendency and dispersion, chi-square analysis or Fisher's exact test, results indicated subjects took the same number of prescription (M = 1.5, SD =1.55) and slightly fewer nonprescription (M=0.55, SD=0.76) medications as the general elderly population, with no particular associations between gender and race. However, 8 of 15 categories of medications consumed had the potential to cause sleep disturbances in the population.