Mental health and sleep of older wife caregivers for spouses with Alzheimer's disease and related disorders

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.

Insomnia Symptom Trajectory of Spouse Caregivers of Older Adults with Functional Limitations

OBJECTIVES

This study examined the long-term impact of spouse caregiving on insomnia symptoms, compared to propensity-score matched non-caregivers.

METHODS

Health and Retirement Study data between 2006 and 2018 were used. Caregivers (n = 403) were respondents (aged 50+) who assisted their heterosexual spouses in performing (instrumental) activities of daily living at baseline. Non-caregivers were matched using a propensity score matching procedure based on baseline characteristics. Insomnia symptoms were measured every 4 years for both groups. Poisson mixed-effect models estimated the association between caregiver status and insomnia symptoms.

RESULTS

Compared to matched non-caregivers, caregivers had similar severity of insomnia symptoms at baseline (β caregiver  = 0.018, 95% CI = -0.089, 0.124) and reported a similar yearly change rate (β caregiver × time  = -0.008, 95% CI = -0.017, 0.001). No moderation effects of care-recipients' dementia status and social support were significant.

CONCLUSIONS

In this study sample, there is no evidence that spouse caregivers, specifically those who performed light duties, experience more severe insomnia symptoms than non-caregivers.

CLINICAL IMPLICATIONS

Spouse caregiving, especially in a light-duty capacity, may not be detrimental to the caregivers' sleep health. More data are needed regarding insomnia in spouse caregivers with heavy duties of care to fully assess the health impact of the caregiving experience.

Sleep Deficiency by Caregiving Status: Findings From Nationally Representative Data

OBJECTIVE

Caregiving demands may influence caregivers' sleep duration and quality, which are essential for optimal health. We aimed to examine the association between caregiving status and sleep deficiency (i.e., short sleep duration and/or poor quality) and identify factors associated with sleep deficiency among caregivers.

METHODS

This secondary analysis used data from 3870 adults living in the United States, obtained from the 2019 Health Information National Trends Survey. Multinomial logistic regressions were performed to examine the association between caregiving status (i.e., caregivers vs. non-caregivers) and sleep status (i.e., normal duration-good quality [optimal sleep, reference], short duration-good quality, normal duration-poor quality, and short duration-poor quality), and to identify caregiving-related factors associated with sleep deficiency in the caregiver group.

RESULTS

Compared to non-caregivers, caregivers were more likely to report short sleep duration (<7 hours) with good quality sleep (relative risk ratio [RRR] = 1.566, 95% CI [1.238, 1.980]) or poor quality sleep (RRR = 1.376, 95% CI [1.034, 1.832]) than the optimal sleep status. Caregivers providing care for ≥20 hours per week (vs. <20 hours) and providing care to individuals with dementia (vs. no dementia caregiving) were 2.8 times more likely to report normal sleep duration with poor sleep quality than optimal sleep (RRR = 2.796, 95% CI [1.125, 6.950]; RRR = 2.776, 95% CI [1.154, 6.675], respectively).

CONCLUSION

The findings of a higher risk of sleep deficiency among caregivers suggest that health care providers need to assess both caregivers' sleep duration and quality status. Interventions tailored to the caregiving context are also warranted.

Multidimensional Environmental Factors and Sleep Health for Aging Adults: A Focused Narrative Review

The timing, amount, and quality of sleep are critical for an individual's health and quality of life. This paper provides a focused narrative review of the existing literature around multidimensional environments and sleep health for aging adults. Five electronic databases, Scopus, Web of Science, PubMed/Medline; EBSCOhost, PsycINFO (ProQuest), and Google Scholar yielded 54,502 total records. After removing duplicates, non-peer reviewed academic articles, and nonrelevant articles, 70 were included for review. We were able to categorize environmental factors into housing security, home environment, and neighborhood environment, and, within each environmental category, specific elements/aspects are discussed. This paper provides a comprehensive map connecting identified levels of influence (individual, home/house, and neighborhood-level) in which subfactors are listed under each level of influence/category with the related literature list. Our review highlights that multidimensional environmental factors can affect aging adults' sleep health and eventually their physical, mental, and cognitive health and that sleep disparities exist in racial minorities in socioeconomically disadvantaged communities in which cumulative environmental stressors coexist. Based on this focused narrative review on the multidimensional sleep environments for aging adults, knowledge gaps are identified, and future research directions are suggested.

Discrepancy between self-reported and objective sleep duration among dementia caregivers and noncaregivers

STUDY OBJECTIVES

Poor sleep, including short sleep duration, is common among caregivers of persons with dementia. However, it is unclear whether poor sleep is consistent across both self-reported and objective measures of sleep in caregivers. This study aimed to test the role of caregiving status (caregivers vs noncaregivers) on the discrepancy between self-reported and objective sleep duration.

METHODS

This was a cross-sectional study. Study participants were community-dwelling caregivers of spouses with dementia (n = 122) and noncaregivers (n = 53). A sleep duration discrepancy index was created by subtracting objective sleep duration measured with 3 consecutive 24-hour periods of actigraphy from self-reported sleep duration measured with the Pittsburgh Sleep Quality Index. Covariates included participants' demographic characteristics, depressive symptoms, positive and negative affects, personal mastery, and caregiving-role overload.

RESULTS

Caregivers showed a greater discrepancy in sleep duration than did noncaregivers (-0.46 hour vs 0.22 hour, respectively; P = .003). In a regression model, however, caregiving status was no longer associated with this sleep duration discrepancy, when covariates were accounted for. Higher positive affect was significantly associated with less sleep duration discrepancy (R2 = 11.3%, P = .014). The Sobel test of mediation showed that 26% of the effect of caregiving on this sleep discrepancy was attributable to caregivers with low positive affect.

CONCLUSIONS

The findings suggest a potential mediating role of positive affect on the relationship between caregiving status and sleep duration discrepancy. As an aid for understanding the role of lower positive affect, use of actigraphy may help address sleep discrepancy in caregivers.

CITATION

Song Y, Moore RC, Jeste DV, et al. Discrepancy between self-reported and objective sleep duration among dementia caregivers and noncaregivers. J Clin Sleep Med. 2022;18(8):1945-1952.

Family Caregivers of People with Dementia Have Poor Sleep Quality: A Nationwide Population-Based Study

Previous studies have documented cognitive impairments, psychological stress, and depressive symptoms in family caregivers of people with dementia (PWD), which could be attributed to their sleep disturbances. Notwithstanding the increasing recognition of poor sleep quality and sleep disturbances in family caregivers of PWD, their association has not been tested yet using population-representative samples. We conducted a retrospective, cross-sectional study using population-based data from the 2018 Korean Community Health Survey. Sociodemographic, mental health-related, and physical health-related variables as well as sleep quality evaluated by the Pittsburgh Sleep Quality Index (PSQI) were compared between 2537 cohabitating caregivers of PWD, 8864 noncohabitating caregivers of PWD, and 190,278 non-caregivers. Two sets of multivariable logistic regressions were conducted to examine the associations between dementia caregiving and poor sleep quality in cohabitating and noncohabitating caregivers versus noncaregivers. Both cohabitating and noncohabitating caregivers had higher global PSQI scores and higher prevalence of poor sleep quality (PSQI score > 5) than did noncaregivers. Multivariable logistic regressions adjusted for potential confounders revealed that cohabitating caregivers (odds ratio (OR) 1.26, 95% confidence interval (CI) 1.15-1.38) and noncohabitating caregivers (OR 1.15, CI 1.10-1.21) were significantly associated with poor sleep quality. Our results showed that both cohabitating and noncohabitating caregivers of PWD experienced overall poorer sleep quality compared to noncaregivers, indicating the deleterious effect of dementia caregiving on sleep quality, regardless of living arrangements. Given the high prevalence of poor sleep quality in family caregivers of PWD and the increasing awareness of the serious health consequences of poor-quality sleep, physicians should consider active sleep interventions to promote health and wellbeing not only for the dementia patients but also for family caregivers.

Sleep Disruption Due to Stress in Women Veterans: A Comparison between Caregivers and Noncaregivers

Objective/Background: Sleep problems are common in women and caregiving for an adult is a common role among women. However, the effects of caregiving on sleep and related daytime impairment are poorly understood among women veterans. This study compared stress-related sleep disturbances, insomnia symptoms, and sleep-related daytime impairment between women veterans who were caregivers and those who did not have a caregiving role. Participants: Of 12,225 women veterans who received care in one Veterans Administration Healthcare System, 1,457 completed data on a postal survey (mean age = 51.7 ± 15.9 years). Two hundred forty three (17%) respondents (mean age 53.8 ± 12.7 years) were caregivers for an adult, predominantly for a parent, providing transportation. Methods: The survey included items that addressed insomnia symptoms, total sleep time, sleep-related daytime impairments, caregiving characteristics, self-rated health, pain, stress, body mass index, and demographic information. Results: In adjusted analyses, caregiver status did not directly predict sleep complaints alone. However, in multiple regression analyses, being a caregiver (odds ratio 1.7, p = .001) significantly predicted stress-related sleep disturbance, even after adjusting for age, pain, self-rated health, and other characteristics. Furthermore, being a caregiver (β = 3.9, p = .031) significantly predicted more symptoms of sleep-related daytime impairment after adjusting for age, pain, self-rated health, and other factors. Conclusions: Compared to noncaregivers, women veterans who were caregivers for an adult were more likely to report stress causing poor sleep, and more daytime impairment due to poor sleep. These findings suggest the need to target stress and other factors when addressing sleep disturbance among women veterans who are caregivers.

Prevalence of Informal Caregiving in States Participating in the US Patient Protection and Affordable Care Act Balancing Incentive Program, 2011-2018

Importance

The Balancing Incentives Program (BIP), established under the 2010 Patient Protection and Affordable Care Act provided federal funding for states to shift long-term care out of institutional settings and into the home. However, the association of its implementation with informal caregiving is not known.

Objective

To evaluate the association between BIP participation and the prevalence and frequency of informal caregiving and socioeconomic disparities among caregivers.

Design, Setting, and Participants

The cohort study included respondents to the 2011-2018 American Time Use Survey in BIP-adopting states and non-BIP-adopting states.

Exposure

Living in a state that had implemented the BIP after program implementation had begun (April 2012 to April 2018).

Main Outcomes and Measures

Prevalence of caregiving among all respondents, frequency of caregiving, and minutes of daily sleep, a marker of well-being. Differences-in-differences (DID) regression analysis was used to compare these outcomes between BIP-adopting states and non-BIP-adopting states.

Results

The study included 38 343 respondents in BIP-adopting states (median age, 47 years [interquartile range (IQR), 31-61 years]; 51.9% women), of whom 7428 were caregivers (median age, 51 years [IQR, 37-61 years]; 55.6% women), and 26 437 respondents in non-BIP-adopting states (median age, 48 years [IQR, 32-62 years]; 52.7% women), of whom 5527 were caregivers (median age, 52 years [IQR, 38-62 years]; 57.9% women). There was no change in the prevalence of caregiving between BIP-adopting and non-BIP-adopting states after program implementation (DID, 0.00%; 95% CI, -0.01% to 0.01%). Caregivers in BIP-adopting states were more likely to provide daily care after implementation (DID, 3.2%; 95% CI, 0.3%-6.0%; P = .03) and report increased time sleeping (DID, 15.6 minutes; 95% CI, 4.9-26.2 minutes; P = .005) compared with caregivers in non-BIP-adopting states. This association was more pronounced among caregivers with more education (DID, 25.1 minutes; 95% CI, 6.5-43.8 minutes; P = .01) and higher annual family income (DID, 16.9 minutes; 95% CI, 5.9-27.9 minutes; P = .004) compared with caregivers in non-BIP-adopting states who had the same education and income levels, respectively.

Conclusions and Relevance

In this cohort study, the BIP was associated with increased daily caregiving and improved caregiver well-being. However, it may have disproportionately benefited caregivers of higher socioeconomic status, potentially exacerbating disparities in caregiver stress. Future policies should aim to mitigate this unintended consequence.

Sleep Duration and Sleep Quality in Caregivers of Patients With Dementia: A Systematic Review and Meta-analysis

IMPORTANCE

In the United States, 16 million family caregivers provide long-term care for patients with dementia. Although one's physical, mental, and cognitive health depends on sleep, many caregivers experience chronic stress, and stress is typically associated with worse sleep quantity and quality.

OBJECTIVE

To quantify the extent, nature, and treatability of sleep problems in dementia caregivers.

DATA SOURCES

PubMed and Scopus databases were systematically searched for articles published through June 2018 using the following keywords: caregiver or spouse or caretaker AND sleep or circadian AND dementia or Alzheimer. Backward citation tracking was performed, and corresponding authors were contacted for additional data to conduct meta-analyses and pooled analyses.

STUDY SELECTION

Two reviewers independently screened 805 studies to identify those that reported sleep duration or sleep quality in caregivers of patients with dementia.

DATA EXTRACTION AND SYNTHESIS

Following the PRISMA guidelines, 2 reviewers independently extracted data from all studies and conducted National Heart, Lung, and Blood Institute study quality assessments. Meta-analyses with random-effects models were performed to evaluate sleep duration, sleep quality, and sleep interventions in dementia caregivers.

MAIN OUTCOMES AND MEASURES

Sleep quality and total sleep time were measured by polysomnography, actigraphy, and self-report.

RESULTS

Thirty-five studies were analyzed with data from 3268 caregivers (pooled mean age [SD of sample means], 63.48 [5.99] years; 76.7% female) were analyzed. Relative to age-matched control noncaregiver adults, caregivers had lower sleep durations akin to losing 2.42 to 3.50 hours each week (Hedges g = -0.29; 95% CI, -0.48 to -0.09; P = .01). Sleep quality was significantly lower in caregivers (Hedges g = -0.66; 95% CI, -0.89 to -0.42; P < .001), but caregivers who underwent sleep intervention trials had better sleep quality than caregivers who did not receive a sleep intervention (Hedges g = 0.35; 95% CI, 0.20-0.49; P < .001).

CONCLUSIONS AND RELEVANCE

Sleep debt is known to have cumulative associations with physical, mental, and cognitive health; therefore, poor sleep quality in dementia caregivers should be recognized and addressed. Although the caregiving role is stressful and cognitively demanding by its nature, better sleep quality was observed in caregivers who received low-cost behavioral interventions.

Caregiving-Related Sleep Problems and Their Relationship to Mental Health and Daytime Function in Female Veterans

OBJECTIVE/BACKGROUND

To identify caregiving-related sleep problems and their relationship to mental health and daytime function in female Veterans.

PARTICIPANTS

Female Veterans (N = 1,477) from cross-sectional, nationwide, postal survey data.

METHODS

The survey respondent characteristics included demographics, comorbidity, physical activity, health, use of sleep medications, and history of sleep apnea. They self-identified caregiving- related sleep problems (i.e., those who had trouble sleeping because of caring for a sick adult, an infant/child, or other respondents). Patient Health Questionnaire (PHQ-4) was used to assess mental health, and daytime function was measured using 11 items of International Classification of Sleep Disorders-2 (ICSD-2).

RESULTS

Female Veterans with self-identified sleep problems due to caring for a sick adult (n = 59) experienced significantly more symptoms of depression and anxiety (p < 0.001) and impairment in daytime function (e.g., fatigue, daytime sleepiness, loss of concentration, p < 0.001) than those with self-identified sleep problems due to caring for an infant or child (n = 95) or all other respondents (n = 1,323) after controlling for the respondent characteristics.

CONCLUSIONS

Healthcare providers should pay attention to assessing sleep characteristics of female Veterans with caregiving responsibilities, particularly those caregiving for a sick adult.

"What Hath Night to Do with Sleep?": The Caregiving Context and Dementia Caregivers' Nighttime Awakenings

OBJECTIVES

Care provision for persons with dementia can be rewarding yet may disrupt caregiver's sleep health. Using the National Health & Aging Trends Study and the National Study of Caregiving, we examine care receiver and caregiver contextual factors, caregiver health and psychological wellbeing as predictors of caregivers' nighttime awakenings.

METHODS

The sample for this cross-sectional study included 451 caregivers for individuals with dementia surveyed by telephone.

RESULTS

Nighttime awakenings (1 item measure of waking and not being able to return to sleep) almost every night were reported by 16% of caregivers and 10% reported that helping the care receiver caused their sleep to be interrupted most nights. In a multinomial logistic regression, caregivers' greater nighttime awakenings were associated with caring for care recipients with higher fall risk, as well as caregiver characteristics of more chronic medical conditions and emotional difficulty of the care role.

CONCLUSIONS

Emotional caregiving difficulties were associated with nighttime awakenings even accounting for caregivers' health and care receivers' disability. Thus, interventions improving caregiver distress may improve sleep health.

CLINICAL IMPLICATIONS

Clinicians should screen caregivers for nighttime awakenings so that evidence-based interventions and treatments can be implemented to prevent persistent sleep disturbances.

Relationship between engagement and level of functional status in older adults

Functional status is an important component of quality of life for older adults and for their caregivers. Factors associated with level of functional status include age, comorbidity, cognitive status, depression, social support, and activity. Of the types of activity linked with functional status, the strongest evidence is for physical exercise, with weaker evidence for social and productive activity. Engagement is a construct including motivation, commitment, and participation.

Emotional suppression, caregiving burden, mastery, coping strategies and mental health in spousal caregivers

OBJECTIVES

The main aim was to explore the multiple mediation effects of personal resources (mastery, engagement and disengagement coping strategies) between caregiving burden and depression in spousal caregivers, based on integrated stress process models. A further aim was to examine whether emotional suppression moderates the relationship between perceived burden and depression.

METHOD

Cross-sectional data were collected in 2010-2011 by structured interviews from a sample of 110 spousal caregivers. Coefficients strategy with bootstrapping tested the strength and significance of the conditional indirect effects of simultaneous multiple mediators; and the conditional effect of burden on depression at different emotional suppression values.

RESULTS

Caregiving burden was indirectly associated with depression, through mastery and disengagement coping, but not through engagement coping. Mastery was negatively associated with depression, while disengagement coping was positively associated with depression. Emotional suppression and functional disability were positively associated with depressive symptoms. A significant burden-by-emotional suppression interaction was found for predicting depressive symptoms.

CONCLUSION

The study supports the conditional indirect effect in which burden can affect depression by reducing the mastery and increasing the disengagement coping simultaneously. The study provides also initial support for the moderating effect of emotional suppression, which can increase the deleterious effects of burden on depression. Researchers and practitioners should be aware of these issues of family care in spousal caregivers.

A phenomenological study of living with a partner affected with dementia

INTRODUCTION

Caring for people affected by dementia is a collective effort that involves public health, primary care, and informal care. The third mainly comprises the efforts of spouses.

AIM

This study aimed to describe spouses' experiences of living with a partner affected with dementia.

METHOD

The study has a descriptive phenomenological approach based on a reflective life-world perspective. Seven in-depth interviews were conducted with spouses of persons affected with dementia. The interviews were audiotaped and analysed using the procedures described by Giorgi (2009) .

FINDINGS

The essence of living with a partner affected by dementia formed a comprehensive theme: from togetherness to loneliness, which along with three descriptive categories-changes in their partner's behaviour, changes in everyday life, and a changed future-describes the phenomenon.

CONCLUSION

The theme 'From togetherness to loneliness' reflects the spouses' descriptions of their life-world. Daily life changed gradually in line with their partners' personality, and their role became that of a care provider rather than a spouse. Information and knowledge about dementia should be provided at an early stage. Health care has a major responsibility to meet their needs, thus ensuring that all parties are satisfied.

Sleep Quality in Family Caregivers of Individuals With Dementia

Poor sleep quality in family caregivers may impact their health status and cause quality of life to decline. Nurses are conducting an increasing number of studies that use sleep quality or related concepts as a main indicator to assess caregiver’s sleep. Therefore, a clear understanding of sleep quality and how it is different from other relevant sleep domains is essential. This article aimed to analyze the concept of sleep quality using the steps outlined by Walker and Avant. Findings include (a) attributes of sleep quality including subjective perception of sleep, sleep hours, and evaluation of activity after awaking; (b) antecedents of sleep quality including the ability to get naturally into the sleep cycle and status of conscious state; and (c) consequences of sleep quality including bio-psycho-social and global dimensions of health. This article intends to help clinicians and researchers better understand and define sleep quality in dementia caregivers.

Effect of home-based light treatment on persons with dementia and their caregivers

Sleep disorders are problematic for persons with dementia and their family caregivers. This randomized controlled trial with crossover evaluated the effects of an innovative blue-white light therapy on 17 pairs of home-dwelling persons with dementia and their caregivers. Subjects with dementia received blue-white light and control ('red-yellow' light) for six weeks separated by a four-week washout. Neither actigraphic nor most self-reported sleep measures significantly differed for subjects with dementia. For caregivers, both sleep and role strain improved. No evidence of retinal light toxicity was observed. Six weeks of modest doses of blue-white light appear to improve sleep in caregivers but not in persons with dementia. Greater or prolonged circadian stimulation may be needed to determine if light is an effective treatment for persons with dementia.

Buying time: a rationale for examining the use of circadian rhythm and sleep interventions to delay progression of mild cognitive impairment to Alzheimer's disease

As of 2010, the worldwide economic impact of dementia was estimated at $604 billion USD; and without discovery of a cure or effective interventions to delay disease progression, dementia's annual global economic impact is expected to surpass $1 trillion USD as early as 2030. Alzheimer's disease (AD) is the leading cause of dementia accounting for over 75% of all cases. Toxic accumulation of amyloid beta (Aβ), either by overproduction or some clearance failure, is thought to be an underlying mechanism of the neuronal cell death characteristic of AD-though this amyloid hypothesis has been increasingly challenged in recent years. A compelling alternative hypothesis points to chronic neuroinflammation as a common root in late-life degenerative diseases including AD. Apolipoprotein-E (APOE) genotype is the strongest genetic risk factor for AD: APOE-ε4 is proinflammatory and individuals with this genotype accumulate more Aβ, are at high risk of developing AD, and almost half of all AD patients have at least one ε4 allele. Recent studies suggest a bidirectional relationship exists between sleep and AD pathology. Sleep may play an important role in Aβ clearance, and getting good quality sleep vs. poor quality sleep might reduce the AD risk associated with neuroinflammation and the ε4 allele. Taken together, these findings are particularly important given the sleep disruptions commonly associated with AD and the increased burden disrupted sleep poses for AD caregivers. The current review aims to: (1) identify individuals at high risk for dementia who may benefit most from sleep interventions; (2) explore the role poor sleep quality plays in exacerbating AD type dementia; (3) examine the science of sleep interventions to date; and (4) provide a road map in pursuit of comprehensive sleep interventions, specifically targeted to promote cognitive function and delay progression of dementia.

Caregiver burden: the strongest predictor of self-rated health in caregivers of patients with dementia

OBJECTIVE

People having dementia need help and supervision to perform their activities of daily living. This responsibility is usually imposed on family members who endure a great burden, leading to undesirable health outcomes. The aims of our study were to measure caregivers' health as well as identify its adjusted relevant predictors.

METHODS

One hundred and fifty three registered patients and their caregivers from Iranian Alzheimer Association were included in this cross-sectional study through sequential sampling. Self-rated health (SRH) was measured using a single question with Likert-type scale ranging from very bad (1) to very good (5). The multiple linear regression model was applied to determine the adjusted associations between independent variables under study and SRH.

RESULTS

The mean caregiver SRH level was 3.03. Of the participant caregivers, 29% were either unsatisfied or very unsatisfied with their health level. In the final regression model, SRH showed a direct significant association with the patient's number of children but an inverse significant association with the marital status (married patients), patient's age, and caregiver burden.

CONCLUSIONS

Caregiver burden was not only significantly associated with poor SRH after removing the effect of the other covariates but it was also recognized as the strongest predictor of caregivers' SRH. Therefore, it seems that development of intervention programs, in order to reduce caregiver burden, can be considered as important step in promoting caregivers' health level.

Use of an online community to provide support to caregivers of people with dementia

One challenge faced by many family members caring for persons with dementia is lack of information about how to take care of others and themselves. This is especially important for persons from ethnic minority groups, because linguistically and culturally appropriate information is often not available. In response to these needs, we developed a web site for Spanish-speaking caregivers. Cuidatecuidador.com provides bilingual information on dementia and caregiver issues. Content was developed and then evaluated by caregivers residing in 3 countries. Findings suggest trends that exposure to information may be related to a higher sense of mastery and a reduction of depressive symptomatology.

Sleep patterns and sleep-impairing factors of persons providing informal care for people with cancer: a critical review of the literature

BACKGROUND

Sleep is increasingly recognized as an area of functioning that may be greatly affected in persons who are practically and emotionally involved in the care of patients with cancer. Clinician awareness is required to ensure that effective care for informal caregivers with sleep problems is provided.

OBJECTIVE

A 2-fold critical review of the published literature was conducted, which aimed at summarizing and critically analyzing evidence regarding sleep patterns of informal caregivers of adults with cancer and contributing factors to sleep-wake disturbances.

METHODS

Using a wide range of key terms and synonyms, 3 electronic databases (MEDLINE, CINAHL, EMBASE) were systematically searched for the period between January 1990 and July 2011.

RESULTS

Based on prespecified selection criteria, 44 articles were pooled to provide evidence on sleep-impairing factors in the context of informal caregiving, 17 of which specifically addressed sleep patterns of caregivers of people with cancer.

CONCLUSIONS

At least 4 of 10 caregivers may report at least 1 sleep problem. Short sleep duration, nocturnal awakenings, wakefulness after sleep onset, and daytime dysfunction seem to be the areas most affected irrespective of stage or type of disease, yet circadian activity remains understudied. In addition, despite a wide spectrum of potential sleep-impairing factors, underlying causal pathways are yet to be explored.

IMPLICATIONS FOR PRACTICE

More longitudinal, mixed-methods, and comparison studies are warranted to explore caregiver sleep disorders in relation to the gravity of the caregiving situation in the context of diverse types of cancer and disease severity.

Sleep disturbance in family caregivers of individuals with dementia: a review of the literature

PURPOSE

This paper will review published evidence regarding health outcomes and factors associated with caregivers' sleep disturbance.

DESIGN AND METHODS

Searches were conducted on CINAHL, MEDLINE, PubMed, and PsycINFO using various keywords.

FINDINGS

We evaluated 138 abstracts and reviewed 18 articles. Depression is the most reported factor influencing caregivers' sleep. Additional factors are caregivers' psychological distress, demographic, and care recipients' characteristics. Health outcomes of sleep disturbance include poor mental and physical health, reduced quality of life, and elevated coagulation and inflammation levels.

PRACTICE IMPLICATIONS

Clinicians should screen caregivers' sleep quality so they can assist them with suggestions on maintaining their health while performing caregiving tasks.

The needs of informal caregivers of elderly people living at home: an integrative review

BACKGROUND

Over the past years, researchers have developed studies about informal caregivers who care for the elderly living at home. Meeting these needs can help these professionals to provide more appropriate care.

AIM

To explore and define the current status of published literature related to the needs of informal caregivers who care for the elderly living at home.

METHOD

This study follows an integrative literature review using Whittemore and Knafl's method. Given the lack of higher-level evidence on this area of study, this method was considered to be the most appropriate to explore and define the current status of the available literature, which comes from a variety of scientific sources, and diverse methodologies. The literature research was performed using eleven electronic databases. The search was developed during the months of December 2010 and February 2011 and updated from March to April 2011. Studies written in English, Portuguese and Spanish were included. A total of 14 articles met the criteria in this review. Data were extracted from primary studies using quantitative, qualitative and mixed methods.

RESULTS

The literature review showed a shortcoming of studies about the needs of caregivers of the elderly at home. It also identified a lack of high-quality scientific evidence in this area. From the literature available, four core themes were generated to reflect the literature: information and training, professional support, effective communication and legal and financial support.

CONCLUSION

This integrative review offers important insight into the needs of informal caregivers, specifically for the elderly. The inclusive nature of integrative review method enabled us to provide a good understanding of underlying issues on the needs of informal caregivers. Challenges for the future are to broaden and enhance the scope of research in this area to provide effective support to intervention projects, services and care to informal caregivers.

A transdisciplinary perspective of chronic stress in relation to psychopathology throughout life span development

The allostatic load (AL) model represents an interdisciplinary approach to comprehensively conceptualize and quantify chronic stress in relation to pathologies throughout the life cycle. This article first reviews the AL model, followed by interactions among early adversity, genetics, environmental toxins, as well as distinctions among sex, gender, and sex hormones as integral antecedents of AL. We next explore perspectives on severe mental illness, dementia, and caregiving as unique human models of AL that merit future investigations in the field of developmental psychopathology. A complimenting transdisciplinary perspective is applied throughout, whereby we argue that the AL model goes beyond traditional stress–disease theories toward the advancement of person-centered research and practice that promote not only physical health but also mental health.

Sleep in dementia caregivers and the effect of a nighttime monitoring system

PURPOSE

The purpose of this study was to determine if a nighttime home monitoring system, designed to track the movements of a care recipient with dementia, would relieve worry and improve sleep in caregivers of persons with dementia.

DESIGN AND METHODS

In this controlled clinical trial, 49 dementia caregivers were followed for up to 1 year. Sleep was measured for 7-day intervals at nine points in time using actigraphy and a sleep diary.

FINDINGS

Although the experimental caregivers generally reported that the system was "of great help" in relieving worry about nighttime activity, no significant group differences were found using multilevel modeling analyses. With regard to total sleep time, time awake after sleep onset, and sleep quality, multilevel models did not demonstrate any changes in sleep between groups, either averaged over time or for the interaction of group and time.

CONCLUSIONS

Since previous analysis of our qualitative data suggested improvements in caregiver worry and sleep, problems other than night awakenings may be perpetuating the sleep problem. Future studies should include testing of multimodal sleep interventions.

CLINICAL RELEVANCE

Caregivers have high amounts of unwanted wake time during the night and additional research is needed to identify effective interventions to improve their sleep.

Does a helping hand mean a heavy heart? Helping behavior and well-being among spouse caregivers

Being a caregiver for an ill or disabled loved one is widely recognized as a threat to the caregiver's quality of life. Nonetheless, research indicates that helping behavior, broadly construed, promotes well-being. Could helping behavior in a caregiving context promote well-being as well? In the present study, we used ecological momentary assessment to measure active helping behavior and both positive and negative affect in 73 spouse caregivers. Results indicate that when controlling for care recipient illness status and functional impairment and caregiver "on call" caregiving time, active helping predicted greater caregiver positive affect--especially for individuals who perceived themselves as interdependent with their spouse. In addition, although both helping and on-call time predicted greater negative affect for caregivers who perceived low interdependence, helping was unrelated to negative affect among caregivers perceiving high interdependence. Helping valued loved ones may promote caregivers' well-being.

Psychological health in older adult spousal caregivers of older adults

OBJECTIVES

The need for informal caregiving has been rapidly increasing across several countries. Spouses comprise a sizeable segment of informal caregivers and typically represent an older cohort with special health concerns. The objective of this review was to examine psychological health outcomes in older adult spouses caring for older adults.

METHODS

Literature review/synthesis (1999-2009).

RESULTS

Compared to demographically matched married non-caregiving controls, older adult spousal caregivers experienced more cognitive functioning difficulties, strain, distress, stress, loneliness, depression, anxiety and poorer mental health. Caregivers of spouses with cognitive impairments, quite often wives, were especially affected by poor psychological health, as were caregivers who were new to the caregiving role and those who rated caregiving as stressful. Psychological health improved when the caregiving role ceased.

DISCUSSION

Several poor psychological outcomes were found in older adults caring for their spouses; the magnitude of which varied and were more pronounced under certain circumstances. To preserve caregiver health, maintain recipient health and care quality and avoid exceeding system of care capacity, efforts are needed to provide support to older adult spousal caregivers and recipients. Couples may need to be assessed as a unit, taking gender and cultural considerations into account, and additional resources may be required.

Enhancing caregiver health: findings from the resources for enhancing Alzheimer's caregiver health II intervention

OBJECTIVES

To examine the relationships between changes from baseline to post-Resources for Enhancing Alzheimer's Caregiver Health (REACH) intervention in caregiver (CG) self-reported health, burden, and bother.

DESIGN

Randomized, multisite clinical trial.

SETTING

CG and care recipient (CR) homes in five U.S. cities.

PARTICIPANTS

Four hundred ninety-five dementia CG and CR dyads (169 Hispanic, 160 white, and 166 African American) receiving intervention and their controls.

INTERVENTION

CGs were assigned to the REACH intervention or a no-treatment control group. Intervention subjects received individual risk profiles and the REACH intervention through nine in-home and three telephone sessions over 6 months. Control subjects received two brief "check-in" telephone calls during this 6-month period.

MEASUREMENTS

The primary outcome was change in CG health status from baseline to after the intervention. Secondary outcomes were CG burden and bother after the intervention.

RESULTS

After the intervention, CGs reported better self-rated health, sleep quality, physical health, and emotional health, which was related to less burden and bother with their caregiving role than for CGs not receiving the intervention. Changes in depression appeared to mediate these relationships. Several racial and ethnic group differences existed in physical and emotional health, as well as in total frustration with caregiving, emotional burden, and CG-rated bother with CR's activities of daily living and instrumental activities of daily living at baseline and at follow-up, although differences between baseline and posttest did not vary according to race.

CONCLUSION

A structured, multicomponent skills training intervention that targeted CG self-care behaviors as one of five target areas, improved self-reported health status, and decreased burden and bother in racially and ethnically diverse CGs of people with dementia.

Renewing everyday hope: the hope experience of family caregivers of persons with dementia

The purpose of this grounded theory study was to explore the experience of hope for family members caring for a person with dementia. Seventeen family members caring for persons with dementia were interviewed. The participants described their hope as the possibility of a positive future within their daily lives and in the social context of grief and loss, stress, fatigue, and constantly dealing with challenging behaviours of the person with dementia. The main concern of the study participants was "fading hope," which they dealt with by "renewing every day hope" through (a) coming to terms, (b) finding positives, and (c) seeing possibilities.

Effects of gender and dementia severity on Alzheimer's disease caregivers' sleep and biomarkers of coagulation and inflammation

BACKGROUND

Being a caregiver for a spouse with Alzheimer's disease is associated with increased risk for cardiovascular illness, particularly for males. This study examined the effects of caregiver gender and severity of the spouse's dementia on sleep, coagulation, and inflammation in the caregiver.

METHODS

Eighty-one male and female spousal caregivers and 41 non-caregivers participated (mean age of all participants 70.2 years). Full-night polysomnography (PSG) was recorded in each participants home. Severity of the Alzheimer's disease patient's dementia was determined by the Clinical Dementia Rating (CDR) scale. The Role Overload scale was completed as an assessment of caregiving stress. Blood was drawn to assess circulating levels of D-dimer and Interleukin-6 (IL-6).

RESULTS

Male caregivers who were caring for a spouse with moderate to severe dementia spent significantly more time awake after sleep onset than female caregivers caring for spouses with moderate to severe dementia (p=.011), who spent a similar amount of time awake after sleep onset to caregivers of low dementia spouses and to non-caregivers. Similarly, male caregivers caring for spouses with worse dementia had significantly higher circulating levels of D-dimer (p=.034) than females caring for spouses with worse dementia. In multiple regression analysis (adjusted R(2)=.270, p<.001), elevated D-dimer levels were predicted by a combination of the CDR rating of the patient (p=.047) as well as greater time awake after sleep onset (p=.046).

DISCUSSION

The findings suggest that males caring for spouses with more severe dementia experience more disturbed sleep and have greater coagulation, the latter being associated with the disturbed sleep. These findings may provide insight into why male caregivers of spouses with Alzheimer's disease are at increased risk for illness, particularly cardiovascular disease.

Subjective sleep, burden, depression, and general health among caregivers of veterans poststroke

The purposes of this article are to explore and describe subjective sleep experiences of informal caregivers of stroke survivors and to explore the relationships between subjective sleep experiences, caregiver burden, depression, and health to provide a broader portrait of the role that sleep plays in the stroke caregiving experience. A total of 276 caregivers and veterans participated in the study. Results indicate a greater risk of depression (Center for Epidemiologic Studies-Depression Scale) among caregivers who sleep less, have difficulty achieving daytime enthusiasm, use sleep medications, and have poor sleep quality. Caregivers who sleep less have difficulty achieving daytime enthusiasm and are at greater risk of poor health. Greater caregiver burden was associated with less sleep and use of sleep medications. This descriptive analysis demonstrates the important relationship between sleep, depression, health, and burden and can lead to interventions to diagnose and treat sleep difficulties in caregivers.

Improving caregivers' well-being by using technology to manage nighttime activity in persons with dementia

This article reports the qualitative arm of a mixed-methods study designed to test an in-home nighttime monitoring system (NMS) that tracks the nighttime activity of persons with dementia. Fourteen caregiver interviews were analyzed using grounded theory/full conceptual description methods to determine the issues associated with providing care at night and to explore the benefits of using the NMS. Caregivers not using the NMS experienced sleep disruption, overwhelming worry, and loss of personal space, leading to decreased energy and changes in mood. When the NMS was used, caregivers reported improved "peace of mind." The fear and uncertainty associated with worry was alleviated by reliable alerts regarding the whereabouts of the person with dementia. Some caregivers were able to better balance needs for personal space with needs to remain in contact with the person with dementia. Generally, caregivers reported improved quality of sleep, although some caregivers reported more awakenings due to the system alerts.

An educational intervention to support caregivers of elders with dementia

The majority of home-dwelling elders with dementia are cared for by family members or friends. Interventions to support community-based caregivers are needed. A community-based seminar series was provided to 300 self-referred family caregivers with dementia. Participants were surveyed for caregiver burden and overload and perceived competence before and 6 months after the seminars. In all, 88 (29%) of participants completed a 6-month survey. Self-perceived caregiver competence improved (3.9 +/- 1.6 to 5.0 +/- 0.32, P < .006); a trend toward improvement in caregiver overload, and there was no change in caregiver burden. Caregivers with baseline parameters indicative of higher burden, overload, or lower competence showed improved scores at 6 months. The educational program was effective in improving competence and may have slowed the expected increase in burden associated with caring for those with a progressive dementia. Caregivers with higher burden may be targeted for this type of intervention, as they seemed to benefit the most.