The Healthy Caregiver? A Positive Impact of Informal Caregiving Status on Cognitive Functions Over Time From the Midlife in the United States Study

OBJECTIVES

The current study examined whether informal caregivers performed worse, better, or similar to non-caregivers on cognitive tests of executive functioning and episodic memory over 10 years. Methods: Data were from waves 2 (2003-04) and 3 (2013-14) of the Midlife in the United States (MIDUS) study (N = 2086). Multiple linear regression models examined whether caregiving at both waves 2 and 3 predicted better cognitive functioning at wave 3, than caregiving at only one time point or no caregiving (reference) while controlling for baseline covariates (i.e., sociodemographic, health, and functional status).

RESULTS

After controlling for covariates, caregiving at both waves was independently associated with better performance in episodic memory (b = .24, SE = .10, p = .013) but not executive function (b = -.06, SE = .05, p = .246). Discussion:The findings partially supported both healthy caregiver and stress process models, indicating caregiving may be associated with better episodic memory but not executive functioning over time among the middle-aged and older adults.

Intergenerational Caregiving Patterns and Cognitive Health among the Sandwich Generation Within Four-Generation Families

This study aims to investigate whether generational differences in intergenerational caregiving patterns (caring for parents only, caring for grandchildren only, and caring for parents and grandchildren simultaneously) are associated with cognitive health disparities among the sandwich generation within four-generation families, drawing upon the theories of intergenerational solidarity and intergenerational stake. Moreover, this study seeks to identify mediators that help explain these disparities. A nationally representative sample of 8,065 respondents was drawn from the 2011 and 2018 waves of the China Health and Retirement Longitudinal Study. The findings reveal that the sandwich generation caring for grandchildren only, as well as those caring for grandchildren and parents simultaneously, exhibit better cognitive health. However, caregiving for parents only is not significantly related to their cognitive health. This study identifies the inability to reduce depressive symptoms as a mediator explaining the insignificant association between caregiving for parents only and the cognitive health of the sandwich generation. The findings underscore the importance of offering support to the sandwich generation within four-generation families to enhance their cognitive health. Moreover, it is imperative to distinguish between different intergenerational caregiving patterns based on generational differences among the sandwich generation, with a specific emphasis on allocating public resources aimed at promoting cognitive health for those engaged in caring for parents.

A Visualization Tool to Study Dyadic Caregiving Health Profiles

OBJECTIVES

Guided by a life course perspective and fundamental cause theory, this study aims to visualize co-trajectories of health between partners and examine how changes in one spouse's cognitive status can cohesively impact the health of the other spouse along three dimensions (functional, mental, and cognitive).

METHODS

Drawing longitudinal data from the Health and Retirement Study 2000-2016 (N = 3582), we measure women's health profiles by functional limitation (physical health), depression (mental health), and cognitive function (cognitive health). We use multivariate linear mixed models to summarize these paths in the same visual representation.

RESULTS

The approach provides a visualization tool that depicts data and model in the same spatial representation allowing assessment of model fit and comparison. This study advances the traditional life course studies by representing underlying processes as a multidimensional time vector of health outcomes.

DISCUSSION

The described approach provides a blueprint for studying complex health profiles or trajectories.

Association between formal social participation and cognitive function in middle-aged and older adults: a longitudinal study using SHARE data

Formal social participation significantly impacts health and well-being, potentially mitigating cognitive decline, although not consistently across all studies. Existing research often focuses solely on baseline participation levels, and age-related differences have primarily been explored among the Asian population. Therefore, this longitudinal study aims to assess the association between formal social participation and cognition across different age groups in individuals aged 50+ living in Europe and Israel, while capturing the dynamic nature of formal social participation. We use data from three waves (four, six, and eight) of the Survey of Health, Ageing, and Retirement in Europe (SHARE), comprising 85,601 respondents. Linear mixed-effects models were applied. The results show that participation in formal social activities mitigates cognitive decline in middle-aged and older adults, especially among those aged 70 to 79 and 80+. These findings support the need for social policies promoting formal social activities, for lasting cognitive health benefits.

Designing a mobile application to promote physical activity in spousal care partners of persons living with dementia and their care-recipient

Background: Care partners of persons living with dementia and their care-recipient have low levels of physical activity. Mobile applications have demonstrated effectiveness in promoting physical activity among older adults. The purpose of this study was to explore the perceptions of spousal care partners of persons with dementia and their care-recipient on the design and content of a mobile application intended to promote physical activity.Methods: Semi-structured interviews were conducted with 14 care partners and their care-recipient. After the interviews were transcribed verbatim, thematic analysis was performed.Results: Four themes emerged from the participants' responses related to the design and content of a mobile application to promote physical activity: 1) exercise preferences and habits, 2) barriers to exercise, 3) motivations for exercise, and 4) mobile application preferences and supportive features.Conclusion: Findings lay the foundation for designing an effective user-friendly mobile application to promote physical activity that caters to the diverse needs, preferences, and challenges among spousal care partners of persons with dementia and their care-recipient.

What impact does hearing impairment have on cognitive health in older married couples in China?

Hearing impairment is a common geriatric health problem and chronic stressor, and it is associated with poor cognitive outcomes. However, little is known about the impact of hearing impairment in married couples, particularly its potential spillover effects on the cognitive health among spouses of individuals with impairment. Drawing on a stress-proliferation perspective, we used actor-partner interdependence models to examine (1) whether an individual's hearing impairment influences their spouse's cognitive function; and (2) whether AL, symptoms of depression, and social participation serve as mediators for such an association. We utilized data from the 2015 (baseline) and 2018 (3-year follow-up) waves of the China Health and Retirement Longitudinal Study. 4434 couples were included at baseline, and 2190 couples remained after the 3-year follow-up. Hearing impairment among married women was associated with negative impacts on their spouses' cognitive function. Symptoms of depression and social participation may have served as potential mediators in this relationship. For married men, there was no statistically significant association between hearing impairment and spouses' cognitive function. Our findings suggest that hearing impairment among one spouse can lead to negative impacts on the other, but that this effect may depend on gender. Early diagnosis and couple-based interventions for hearing impairment are important for the cognitive health of both hearing-impaired individuals and their spouses.

Impact of caregiving on mental, self-rated, and physical health: evidence from the China health and retirement longitudinal study

OBJECTIVES

Given the escalating demand for care services, understanding the impact of informal caregiving, providing unpaid care for family members, on own health is essential. This study longitudinally analyzed the association of caregiving (and different caregiver types) with mental, physical, and self-rated health. Urban-rural, gender, and employment heterogeneity were further investigated.

METHOD

Based on three-wave data (2011, 2013, and 2018) from the China Health and Retirement Longitudinal Study, we used growth curve models to assess the impact of informal caregiving (providing care to family members) and caregiver types (caregivers to grandchildren, parents, spouses, or multiple family members) on three health outcomes (depressive symptoms, self-rated health, and activities of daily living limitations).

RESULTS

Our study included 13,377 individuals. Results showed a negative correlation of caregiving with mental, physical, and self-rated health. Compared to noncaregivers, spousal caregivers and multiple caregivers were both associated with worsening mental, self-rated, and physical health. In contrast, adult child caregivers were only negatively associated with mental health, and grandparent caregiving did not significantly affect any health outcomes. Further heterogeneity analysis showed that gender did not moderate the relationship between caregiving and health, whereas the negative association between caregiving and health was more pronounced among the rural population and those employed in agriculture.

DISCUSSION

Findings from the present study suggest that caregiving is detrimental to health, and recommend considering caregiver type when examining caregiving and health. These findings have vital implications for policymakers in addressing the challenges of structuring and implementing a sustainable informal care system.

Age-related behavioral resilience in smartphone touchscreen interaction dynamics

We experience a life that is full of ups and downs. The ability to bounce back after adverse life events such as the loss of a loved one or serious illness declines with age, and such isolated events can even trigger accelerated aging. How humans respond to common day-to-day perturbations is less clear. Here, we infer the aging status from smartphone behavior by using a decision tree regression model trained to accurately estimate the chronological age based on the dynamics of touchscreen interactions. Individuals (N = 280, 21 to 87 y of age) expressed smartphone behavior that appeared younger on certain days and older on other days through the observation period that lasted up to ~4 y. We captured the essence of these fluctuations by leveraging the mathematical concept of critical transitions and tipping points in complex systems. In most individuals, we find one or more alternative stable aging states separated by tipping points. The older the individual, the lower the resilience to forces that push the behavior across the tipping point into an older state. Traditional accounts of aging based on sparse longitudinal data spanning decades suggest a gradual behavioral decline with age. Taken together with our current results, we propose that the gradual age-related changes are interleaved with more complex dynamics at shorter timescales where the same individual may navigate distinct behavioral aging states from one day to the next. Real-world behavioral data modeled as a complex system can transform how we view and study aging.

Association of spouse's vision impairment with depressive symptoms and cognitive decline in partner: A nationally representative study in China

BACKGROUND

Although several previous studies have reported on the relationship between vision impairment and caregiver mental health, mixed results were obtained, and only one study reported the association between spousal vision impairment and partner depression. Therefore, our study aimed to examine the association between spousal vision impairment and the partner's depressive symptoms and cognitive decline.

METHODS

This cross-sectional study gathered baseline data from the China Health and Retirement Longitudinal Study (CHARLS) in 2011. A total of 10,956 couples were included in the study. Vision impairment was assessed by respondents' self-reported distance or near vision. Multivariate logistic and linear regression were conducted to evaluate the association between the spouse's vision impairment and the partner's depressive symptoms and cognitive function.

RESULTS

The prevalence of partners with depressive symptoms was significantly higher among spouses with vision impairment than among those without (43.3 % vs. 32.5 %; P < 0.001), and cognitive function was significantly lower (spousal vision impairment 14.4 ± 4.5 vs. no spousal vision impairment 15.5 ± 4.6; P < 0.001). After fully adjusting for potential confounders, the partner had greater odds of depressive symptoms for spouses with vision impairment than for those without (odds ratio: 1.525; 95 % confidence interval [CI]: 1.387 to 1.677). Furthermore, spousal vision impairment was negatively associated with the partner's cognitive function (β = -0.640; 95 % CI: -0.840 to -0.440). Sensitivity analysis was performed, and consistent results were obtained (all P < 0.05).

LIMITATIONS

Visual function was assessed by self-reporting.

CONCLUSIONS

A spouse's vision impairment is associated with depressive symptoms and cognitive decline in the partner. The findings imply the importance of considering the partner's mental health when managing their spouse's vision impairment.

Cognitive and neuroscientific perspectives of healthy ageing

With dementia incidence projected to escalate significantly within the next 25 years, the United Nations declared 2021-2030 the Decade of Healthy Ageing, emphasising cognition as a crucial element. As a leading discipline in cognition and ageing research, psychology is well-equipped to offer insights for translational research, clinical practice, and policy-making. In this comprehensive review, we discuss the current state of knowledge on age-related changes in cognition and psychological health. We discuss cognitive changes during ageing, including (a) heterogeneity in the rate, trajectory, and characteristics of decline experienced by older adults, (b) the role of cognitive reserve in age-related cognitive decline, and (c) the potential for cognitive training to slow this decline. We also examine ageing and cognition through multiple theoretical perspectives. We highlight critical unresolved issues, such as the disparate implications of subjective versus objective measures of cognitive decline and the insufficient evaluation of cognitive training programs. We suggest future research directions, and emphasise interdisciplinary collaboration to create a more comprehensive understanding of the factors that modulate cognitive ageing.

2024 Alzheimer's disease facts and figures

This article describes the public health impact of Alzheimer's disease (AD), including prevalence and incidence, mortality and morbidity, use and costs of care and the ramifications of AD for family caregivers, the dementia workforce and society. The Special Report discusses the larger health care system for older adults with cognitive issues, focusing on the role of caregivers and non-physician health care professionals. An estimated 6.9 million Americans age 65 and older are living with Alzheimer's dementia today. This number could grow to 13.8 million by 2060, barring the development of medical breakthroughs to prevent or cure AD. Official AD death certificates recorded 119,399 deaths from AD in 2021. In 2020 and 2021, when COVID-19 entered the ranks of the top ten causes of death, Alzheimer's was the seventh-leading cause of death in the United States. Official counts for more recent years are still being compiled. Alzheimer's remains the fifth-leading cause of death among Americans age 65 and older. Between 2000 and 2021, deaths from stroke, heart disease and HIV decreased, whereas reported deaths from AD increased more than 140%. More than 11 million family members and other unpaid caregivers provided an estimated 18.4 billion hours of care to people with Alzheimer's or other dementias in 2023. These figures reflect a decline in the number of caregivers compared with a decade earlier, as well as an increase in the amount of care provided by each remaining caregiver. Unpaid dementia caregiving was valued at $346.6 billion in 2023. Its costs, however, extend to unpaid caregivers' increased risk for emotional distress and negative mental and physical health outcomes. Members of the paid health care and broader community-based workforce are involved in diagnosing, treating and caring for people with dementia. However, the United States faces growing shortages across different segments of the dementia care workforce due to a combination of factors, including the absolute increase in the number of people living with dementia. Therefore, targeted programs and care delivery models will be needed to attract, better train and effectively deploy health care and community-based workers to provide dementia care. Average per-person Medicare payments for services to beneficiaries age 65 and older with AD or other dementias are almost three times as great as payments for beneficiaries without these conditions, and Medicaid payments are more than 22 times as great. Total payments in 2024 for health care, long-term care and hospice services for people age 65 and older with dementia are estimated to be $360 billion. The Special Report investigates how caregivers of older adults with cognitive issues interact with the health care system and examines the role non-physician health care professionals play in facilitating clinical care and access to community-based services and supports. It includes surveys of caregivers and health care workers, focusing on their experiences, challenges, awareness and perceptions of dementia care navigation.

"WOOP is my safe haven": A qualitative feasibility and acceptability study of the Wish Outcome Obstacle Plan (WOOP) intervention for spouses of people living with early-stage dementia

OBJECTIVES

As symptoms emerge and worsen in people living with dementia, their spouses can benefit from behavioral interventions to support their adjustment as a care partner. The Wish Outcome Obstacle Plan (WOOP) intervention improves the well-being of spouses of people living with dementia early in the disease course, but intervention mechanisms and opportunities for improvement are unclear. The present study gave voice to spouses who participated in a trial of WOOP, describing how WOOP was incorporated into their lives and how it could be improved for future implementation.

METHOD

For this qualitative study, we conducted longitudinal semi-structured interviews among 21 spouses of people living with dementia (three interviews over three months; 63 interviews total). Codebook thematic analysis was performed.

RESULTS

Three meta-themes were derived: (1) assessing baseline strengths and limitations of WOOP, (2) learning from experience, and (3) fine-tuning and sustaining WOOP. Participants described how WOOP addressed their interpersonal and emotional stressors, their responses to behaviors of the person living with dementia, and their relationship quality. Considerations for future intervention delivery (e.g., solo vs. in group settings) and instructions (e.g., encouraging writing vs. thinking through the four steps of WOOP) were identified as areas of improvement.

CONCLUSIONS

WOOP was described as a practical, feasible, and desirable intervention for spouses at the early stages of their partner's dementia. Participants made WOOP easier to incorporate in their everyday lives by adapting the design into a mental exercise that they used as needed. Suggestions from participants specified how to make the everyday use of WOOP more feasible, sustainable, and applicable in a variety of contexts.

TRIAL REGISTRATION

ClinicalTrials.gov HIC 2000021852.

Individualized Coordination and Empowerment for Care Partners of Persons with Dementia (ICECaP): Study rationale and protocol

The majority of care for >10 million older adults with dementia (PWD) in the United States depends on at least on 11 million unpaid care partners (CPs). CPs are at greater risk of adverse physical, psychological, and cognitive health outcomes relative to non-caregiving peers. The goal of this paper is to establish the rationale, design, and protocol for a pilot randomized control trial to test the efficacy of the CP-focused intervention, ICECaP: Individualized Coordination and Empowerment for Care Partners of Persons with Dementia. ICECaP involves the assignment of a trained dementia care coordinator to a CP. The care coordinator maintains at least monthly contact with the CP with hybrid delivery (in-person, phone, e-mail, and video calls) and provides individualized support with care coordination for the CP navigating the PWD's care in a complex healthcare system, as well as supportive counseling, psychoeducation, and skills training for the CP. This trial will compare outcomes from baseline to 12-months among CPs who receive ICECaP versus routine care (controls). Outcomes include CP depression, burden, anxiety, and quality of life; CPs' reactions to the behavioral symptoms of dementia; and use of support services for the PWD. This trial will also assess mechanisms of intervention efficacy including changes in CP dementia knowledge, caregiving preparedness, self-efficacy, and optimism. Publication of this intervention protocol will benefit other dementia care teams seeking to support CPs and PWDs.

Occurrence and Risk Factors for Cognitive Decline Shared by Couples: A Systematic Review and Meta-Analysis

Background

To date, the magnitude of association and the quality of evidence for cognitive decline (mild cognitive impairment, Alzheimer's disease, and dementia) in couples and risk factors for outcomes have not been reviewed and analyzed systematically.

Objective

The aim of this study was to investigate the concordance of cognitive impairment in unrelated spouses and to qualitatively describe potential risk factors.

Methods

Eight databases were searched from inception to October 20, 2023. Eligible studies were independently screened and assessed for quality. Statistical analysis was conducted using Stata 15.1 software. The study was preregistered with PROSPERO (CRD42023488024).

Results

Eleven studies involving couples were included, with moderate to high evidence quality. Compared to controls, spouses of individuals with cognitive impairment had lower cognitive scores (Cohen's d: 0.18-0.62) and higher risk of cognitive decline (OR = 1.42, 95% CI: 1.15-1.76). The consistency of cognitive impairment between spouses was attributed to three theories: 1) the impact of caregiving stress experienced by the spouse; 2) assortative mating, which suggests that individuals select partners with similar characteristics; and 3) the influence of shared living environments and lifestyles.

Conclusions

The cognitive status of one spouse can affect the cognitive function of the other spouse. It is important to consider shared lifestyle, environmental, and psychobehavioral factors, as they may contribute to the risk of cognitive decline by couples. Identifying these factors can inform the development of targeted recommendations for interventions and preventive measures.

Comparative Analysis of Gender and Age Patterns in Informal Care Received among Disabled Older Adults: A Cross-National Study across the United States, Mexico, China, and Indonesia

This paper examines cross-national differences by gender and age in receipt and sources of help for limitations with activities of daily living or instrumental activities of daily living among older adults in the United States, Mexico, China, and Indonesia. Respondents aged 50 + from the Health and Retirement Study, Mexican Health and Aging Study, China Health and Retirement Longitudinal Study, and Indonesia Family Life Survey are included. Descriptive methods, logistic and multinomial regression analyses are used to examine patterns in any help received and main source of help respectively. After controlling for age, marital status, and co-residence with child(ren), it is found that men in all four countries overwhelmingly relied on their spouse for care, while children are more likely to be the main source of care for women. Children as the main source of care increased with age in each country and among men and women, surpassing spouse in China and Indonesia, and to a lesser extent in Mexico, but not in the United States where spouse was found to be more likely to be main caregiver even among the oldest age groups. Caregiving for the disabled is important for the well-being of the care recipient and for caregivers. Our results shed light on the asymmetric burden of caregiving on female spouses, across four diverse and aging countries.

Impact of Caregiving on Cognitive Functioning: Evidence From the China Health and Retirement Longitudinal Study

OBJECTIVES

Few studies have examined the association between caregiving and the cognitive functioning of caregivers. This study explored the association between caring for family members and cognition and how the link differs by caregiving intensity and caregiving types. Furthermore, rural-urban and gender heterogeneity were investigated.

METHODS

This study analyzed Waves 2011, 2013, and 2018 of the China Health and Retirement Longitudinal Study, with cognitive functioning assessed in 3 dimensions: memory, executive function, and orientation function. The cognition trajectories between caregivers and noncaregivers were compared with the growth curve model.

RESULTS

Results demonstrated a positive association between caregiving and cognitive functioning (β = 0.249, p < .001). Considering caregiving intensity, the positive association was only found in low (β = 0.335, p < .001) and moderate-intensity caregivers (β = 0.250, p < .05) but not in high-intensity caregivers. Moreover, grandparents, adult children, and multiple caregivers had a higher average cognition level at age 60 than noncaregivers (all β > 0, all p < .05), and adult child caregivers exhibited a significantly slower rate of decline in cognition across age (β = 0.040, p < .01). However, spousal caregivers showed no significant disparities with noncaregivers. Moreover, the impact of caregiving on memory function is more apparent among urban adults.

DISCUSSION

Results indicate that caregiving can benefit cognitive function. This study proposes considering caregiving intensity and caregiving types when exploring caregiving and cognition. Based on these findings, policy-makers may overcome the challenges involved in establishing and developing a supportive informal care system in China.

Spousal Cognitive Status and Risk for Declining Cognitive Function and Dementia: The Atherosclerosis Risk in Communities Study

Objectives: We investigated the relationship between the cognitive status of participants' spouses and participants' own cognitive outcomes, controlling for mid-life factors. Methods: Participants (n = 1845; baseline age 66-90 years) from the prospective Atherosclerosis Risk in Communities Study were followed from 2011 to 2019. We used linear regression and Cox proportional hazard models to estimate whether spouses of people with MCI/dementia had lower cognitive functioning and elevated risk of incident dementia. Results: Having a spouse with MCI/dementia was associated with a deficit in cognitive function (b = -0.09 standard deviations; 95% CI = -0.18, 0.00). Adjustment for mid-life risk factors attenuated this association (b = -0.02 standard deviations; 95% CI = -0.10, 0.06). We observed no significant relationship between spousal MCI/dementia status and incident dementia (hazard ratio = 0.97; 95% CI = 0.69, 1.38). Discussion: Spousal cognitive status is not associated with poor cognitive outcomes independent of mid-life factors.

Predicting age at Alzheimer's dementia onset with the cognitive clock

INTRODUCTION

Intervention of Alzheimer's dementia hinges on early diagnosis and advanced planning. This work utilizes the cognitive clock, a novel indicator of brain health, to develop a dementia prediction model that can be easily applied in broad settings.

METHODS

Data came from over 3000 community-dwelling older adults. Cognitive age was estimated by aligning Mini-Mental State Examination (MMSE) scores to a clock that represents the typical cognitive aging profile. We identified a mean cognitive age at Alzheimer's dementia onset and predicted the corresponding chronological age at person-specific level.

RESULTS

The mean chronological age at baseline was 78 years. A total of 881 (28%) participants developed Alzheimer's dementia. The mean cognitive age at onset was 91 years. The predicted chronological age at onset had a mean (standard deviation) of 87.6 (6.7) years. The model's prediction accuracy was supported by multiple testing statistics.

DISCUSSION

Our model offers an easy-to-use tool for predicting person-specific age at Alzheimer's dementia onset.

The relationship between daily stressors, social support, depression and anxiety among dementia family caregivers: a micro-longitudinal study

Objectives: This study aimed to examine the relationships between daily stress, social support, and the mental health of dementia family caregivers.Methods: A national sample of family caregivers (N = 165) completed daily diary surveys over 21 days (n = 2,841). Mixed-level models were used to examine the daily odds of experiencing depression and anxiety-related symptoms when risk factors, such as the stress of managing behavioral symptoms of dementia (BSDs) exhibited by the person living with dementia, and protective factors, such as social support, were reported on a given day.Results: Dementia caregivers were more likely to report depression and anxiety-related symptoms when BSDs were present and perceived as more bothersome than usual. Specific BSDs, including restless behaviors and intense emotions, were also found to increase the daily odds of experiencing depression and anxiety symptoms. The daily odds of depression symptoms decreased on days when caregivers reported receiving instrumental support, while the daily odds of anxiety symptoms increased on days when caregivers reported receiving emotional support.Conclusions: The daily odds of experiencing depression and anxietyvary based on the presence of specific BSDs and social support. These findings support the need for targeted interventions to improve the day-to-day well-being of dementia family caregivers.

Poorer decision making among college students during the COVID-19 pandemic: Evidence for "pandemic-brain"

OBJECTIVE

Did living through the COVID-19 pandemic cause healthy college students to experience "pandemic-brain," a phenomenon characterized by difficulties with various cognitive abilities? Did students shift from deliberative to more impulsive decision making?

PARTICIPANTS

We compared a pre-pandemic sample of 722 undergraduate students to 161 undergraduate students recruited in Fall 2020, during the COVID-19 pandemic.

METHOD

We compared scores on the Adult Decision Making Competence scale among participants who completed the task pre-pandemic or across two time points in Fall 2020, during the pandemic.

RESULTS

Decision making was less consistent and more reliant on gain/loss framing during the pandemic compared to pre-pandemic, but college students were no less confident in their decisions. No significant changes in decision making occurred during the pandemic.

CONCLUSIONS

These decision making changes could increase the risk of making an impulsive choice with negative health consequences affecting demands on student health centers and imperiling learning environments.

2023 Alzheimer's disease facts and figures

This article describes the public health impact of Alzheimer's disease, including prevalence and incidence, mortality and morbidity, use and costs of care, and the overall impact on family caregivers, the dementia workforce and society. The Special Report examines the patient journey from awareness of cognitive changes to potential treatment with drugs that change the underlying biology of Alzheimer's. An estimated 6.7 million Americans age 65 and older are living with Alzheimer's dementia today. This number could grow to 13.8 million by 2060 barring the development of medical breakthroughs to prevent, slow or cure AD. Official death certificates recorded 121,499 deaths from AD in 2019, and Alzheimer's disease was officially listed as the sixth-leading cause of death in the United States. In 2020 and 2021, when COVID-19 entered the ranks of the top ten causes of death, Alzheimer's was the seventh-leading cause of death. Alzheimer's remains the fifth-leading cause of death among Americans age 65 and older. Between 2000 and 2019, deaths from stroke, heart disease and HIV decreased, whereas reported deaths from AD increased more than 145%. This trajectory of deaths from AD was likely exacerbated by the COVID-19 pandemic in 2020 and 2021. More than 11 million family members and other unpaid caregivers provided an estimated 18 billion hours of care to people with Alzheimer's or other dementias in 2022. These figures reflect a decline in the number of caregivers compared with a decade earlier, as well as an increase in the amount of care provided by each remaining caregiver. Unpaid dementia caregiving was valued at $339.5 billion in 2022. Its costs, however, extend to family caregivers' increased risk for emotional distress and negative mental and physical health outcomes - costs that have been aggravated by COVID-19. Members of the paid health care workforce are involved in diagnosing, treating and caring for people with dementia. In recent years, however, a shortage of such workers has developed in the United States. This shortage - brought about, in part, by COVID-19 - has occurred at a time when more members of the dementia care workforce are needed. Therefore, programs will be needed to attract workers and better train health care teams. Average per-person Medicare payments for services to beneficiaries age 65 and older with AD or other dementias are almost three times as great as payments for beneficiaries without these conditions, and Medicaid payments are more than 22 times as great. Total payments in 2023 for health care, long-term care and hospice services for people age 65 and older with dementia are estimated to be $345 billion. The Special Report examines whether there will be sufficient numbers of physician specialists to provide Alzheimer's care and treatment now that two drugs are available that change the underlying biology of Alzheimer's disease.

Diverse demands and resources among racially/ethnically diverse caregivers

OBJECTIVES

The family caregiver population in the US is growing in conjunction with greater numbers of older adults with serious illness and complex care needs, and is becoming increasingly diverse. This study described and compared resources, demands, and health outcomes among diverse family caregivers by race/ethnicity.

DESIGN

This study was a cross-sectional secondary analysis of nationally representative data collected for Black/African-American, Asian American & Pacific Islander, Latino/Hispanic and non-Latino/Hispanic white caregivers (n = 2,010) in the Home Alone Revisited Study. We described available resources (e.g. income, paid help, social support) and demands (e.g. medical/nursing task performance) by racial/ethnic group. Using survey-weighted logistic regression, we examined relationships of resources and demands with caregiver outcomes (i.e. heath status; strain; depressive symptoms) by race-ethnicity controlling for socio-demographic variables.

RESULTS

Distribution of resources and demands was similar by race/ethnicity, except for higher income for non-Latino/Hispanic white caregivers. Nearly half assisted with personal care (47.5%) or medical/nursing tasks (49.7%). Higher social support and satisfaction with social relationships was associated with positive health outcomes regardless of race/ethnicity, while income was consistently associated with positive health outcomes only for non-Latino/Hispanic white caregivers. Medical/nursing task performance was significantly associated with negative health outcomes for Asian American & Pacific Islanders in multivariable models.

DISCUSSION

Many caregiving demands and tasks are similar by race/ethnicity and represent considerable investment of time, energy and care. Differences in the effects of resources and demands by race/ethnicity should be explored in future research as they may have implications for assessment and planning of culturally and linguistically appropriate interventions.

Cultural differences in caring for people with dementia: a pilot study of concern about losing face and loneliness in Chinese American and European American caregivers

OBJECTIVES

Heavy demands upon dementia caregivers can lead to a number of poor health outcomes including declines in physical, mental, and brain health. Although dementia affects people from all backgrounds, research in the US has largely focused on European American caregivers. This has made providing culturally-competent care more difficult. This study begins to address this issue by empirically examining how culturally-shaped beliefs can influence loneliness in family caregivers of people with dementia.

METHODS

We conducted a preliminary questionnaire study with Chinese American and European American family caregivers of people with dementia (N = 72).

RESULTS

Chinese American caregivers were more concerned than European American caregivers about losing face, which in turn, was associated with greater loneliness. This pattern remained when accounting for caregiver gender, age, and relationship to the person with dementia.

CONCLUSIONS

These preliminary findings highlight the role that cultural beliefs can play in adverse caregiver outcomes, and suggest that addressing concerns about losing face may be an important way for healthcare providers to help reduce loneliness among Chinese American caregivers.

CLINICAL IMPLICATIONS

Understanding how cultural beliefs influence caregiver outcomes is critical as healthcare professionals work to provide culturally-competent care and design culturally-sensitive interventions.

Cognition and Diabetes: Examining Sex Differences Using a Longitudinal Sample of Older Adults

Objectives: This study aims to investigate sex-based differences in the diabetes status and cognition relationship using a representative sample of older Americans. Methods: Using a sample of 19,190 females and 15,580 males from the Health and Retirement Study, we conduct mixed-effects linear regression analyses to examine sex differences in the association between diabetes and cognition over a 20-year follow-up period among older adults in the United States. Main Findings: Females experience slightly steeper declines in cognition that are further exacerbated by diabetes. At age 65, females without diabetes have significantly higher cognition than males; this gap is eliminated by age 85. Among diabetics, there is no initial sex disparity, but females' cognition becomes significantly lower than males' over the following 20 years. Principal Conclusions: Relative to males, females are particularly susceptible to diabetes-related declines in cognition with increasing age.

Depressive Symptoms and Caregiving Intensity Before and After Onset of Dementia in Partners: A Retrospective, Observational Study

BACKGROUND

Caring for a partner with dementia poses significant emotional burden and high care demands, but changes in impacts before and after dementia onset is unclear.

OBJECTIVE

Examine changes in depressive symptoms and hours of care provided by caregivers through the course of their partners' cognitive decline.

METHODS

Retrospective, observational study using household survey data from 2000-2016 Health and Retirement Study and count models to evaluate older individuals' (ages ≥51 y) depressive symptoms (measured using the shortened Center for Epidemiologic Studies Depression Scale) and weekly caregiving in the 10 years before and after their partners' dementia onset (identified using Telephone Interview Cognitive Status screening). Relationships were examined overall and by sex and race.

RESULTS

We identified 8298 observations for 1836 older caregivers whose partners developed dementia. From before to after partners' dementia onset, caregivers' mean (SD) depressive symptoms increased from 1.4 (1.9) to 1.9 (2.1) ( P <0.001) and weekly caregiving increased from 4.4 (19.7) to 20.8 (44.1) ( P <0.001) hours. Depressive symptoms and caregiving hours were higher for women compared with men. Depressive symptoms were higher for Blacks compared with Whites, while caregiving hours were higher for Whites. The expected count of caregivers' depressive symptoms and caregiving hours increased by 3% ( P <0.001) and 9% ( P =0.001) before partners' dementia onset and decreased by 2% ( P <0.001) and 1% ( P =0.63) following partners' dementia onset. No differences observed by sex or race.

DISCUSSION

Depressive symptoms and instrumental burdens for caregivers increase substantially before the onset of dementia in partners. Early referral to specialty services is critical.

Psychometric properties of the Turkish version of the scale for positive aspects of caregiving experience

PURPOSE

To assess the psychometric properties of the Turkish version of the Scale for Positive Aspects of Caregiving Experience (SPACE).

DESIGN AND METHODS

The methodological descriptive study was conducted with 228 family caregivers of people with dementia (PwD) in Turkey, Izmir, between March 2018 and December 2019.

FINDINGS

The Turkish version of SPACE is a valid and reliable measurement tool to evaluate the positive experiences of caregivers of PwD in the Turkish society.

PRACTICE IMPLICATIONS

It is thought that this measurement tool will be useful for researchers working with primary caregivers in Turkey.

A Social Media-Based Intervention for Chinese American Caregivers of Persons With Dementia: Protocol Development

BACKGROUND

Racial/ethnic minority and immigrant caregivers of persons with dementia experience high rates of psychosocial stress and adverse health outcomes. Few culturally tailored mobile health (mHealth) programs were designed for these vulnerable populations.

OBJECTIVE

This study reports the development of a culturally tailored mHealth program called Wellness Enhancement for Caregivers (WECARE) to improve caregiving skills, reduce distress, and improve the psychosocial well-being of Chinese American family caregivers of persons with dementia.

METHODS

Community-based user-centered design principles were applied in the program development. First, the structure and curriculum of the WECARE program were crafted based on existing evidence-based interventions for caregivers with input from 4 experts. Second, through working closely with 8 stakeholders, we culturally adapted evidence-based programs into multimedia program components. Lastly, 5 target users tested the initial WECARE program; their experience and feedback were used to further refine the program.

RESULTS

The resulting WECARE is a 7-week mHealth program delivered via WeChat, a social media app highly popular in Chinese Americans. By subscribing to the official WECARE account, users can receive 6 interactive multimedia articles pushed to their WeChat accounts each week for 7 weeks. The 7 major themes include (1) facts of dementia and caregiving; (2) the enhancement of caregiving skills; (3) effective communication with health care providers, care partners, and family members; (4) problem-solving skills for caregiving stress management; (5) stress reduction and depression prevention; (6) the practice of self-care and health behaviors; and (7) social support and available resources. Users also have the option of joining group chats for peer support. The WECARE program also includes a back-end database that manages intervention delivery and tracks user engagement.

CONCLUSIONS

The WECARE program represents one of the first culturally tailored social media-based interventions for Chinese American caregivers of persons with dementia. It demonstrates the use of community-based user-centered design principles in developing an mHealth intervention program in underserved communities. We call for more cultural adaptation and development of mHealth interventions for immigrant and racial/ethnic minority caregivers of persons with dementia.

Automatically Identifying Twitter Users for Interventions to Support Dementia Family Caregivers: Annotated Data Set and Benchmark Classification Models

BACKGROUND

More than 6 million people in the United States have Alzheimer disease and related dementias, receiving help from more than 11 million family or other informal caregivers. A range of traditional interventions has been developed to support family caregivers; however, most of them have not been implemented in practice and remain largely inaccessible. While recent studies have shown that family caregivers of people with dementia use Twitter to discuss their experiences, methods have not been developed to enable the use of Twitter for interventions.

OBJECTIVE

The objective of this study is to develop an annotated data set and benchmark classification models for automatically identifying a cohort of Twitter users who have a family member with dementia.

METHODS

Between May 4 and May 20, 2021, we collected 10,733 tweets, posted by 8846 users, that mention a dementia-related keyword, a linguistic marker that potentially indicates a diagnosis, and a select familial relationship. Three annotators annotated 1 random tweet per user to distinguish those that indicate having a family member with dementia from those that do not. Interannotator agreement was 0.82 (Fleiss kappa). We used the annotated tweets to train and evaluate support vector machine and deep neural network classifiers. To assess the scalability of our approach, we then deployed automatic classification on unlabeled tweets that were continuously collected between May 4, 2021, and March 9, 2022.

RESULTS

A deep neural network classifier based on a BERT (bidirectional encoder representations from transformers) model pretrained on tweets achieved the highest F1-score of 0.962 (precision=0.946 and recall=0.979) for the class of tweets indicating that the user has a family member with dementia. The classifier detected 128,838 tweets that indicate having a family member with dementia, posted by 74,290 users between May 4, 2021, and March 9, 2022-that is, approximately 7500 users per month.

CONCLUSIONS

Our annotated data set can be used to automatically identify Twitter users who have a family member with dementia, enabling the use of Twitter on a large scale to not only explore family caregivers' experiences but also directly target interventions at these users.

The Differential Effects of Caregiving Intensity on Overnight Hospitalization

This study aims to examine how caregiving for a spouse affects caregivers' likelihood of overnight hospitalization. Using data from the Health and Retirement Study, we examine the odds of spousal caregivers experiencing an overnight hospitalization in the previous two years according to caregiving status, intensity, and change in caregiving intensity. Caregivers were no more likely to experience an overnight hospitalization than noncaregivers (OR = .92; CI [.84, 1.00]). Effects varied by intensity of care. Compared to noncaregivers, caregivers who reported providing no assistance with activities of daily living were less likely to experience overnight hospitalization (OR = .77; CI [.66, .89]); however, caregivers who provided care to someone living with dementia for 4 to <6 years had 2.11 times the odds of experiencing an overnight hospitalization (CI [1.16, 3.85]). Although caregivers overall experience overnight hospitalization at a similar rate as noncaregivers, there are differences between caregivers by the intensity of care.

2022 Alzheimer's disease facts and figures

This article describes the public health impact of Alzheimer's disease (AD), including incidence and prevalence, mortality and morbidity, use and costs of care, and the overall impact on family caregivers, the dementia workforce and society. The Special Report discusses consumers' and primary care physicians' perspectives on awareness, diagnosis and treatment of mild cognitive impairment (MCI), including MCI due to Alzheimer's disease. An estimated 6.5 million Americans age 65 and older are living with Alzheimer's dementia today. This number could grow to 13.8 million by 2060 barring the development of medical breakthroughs to prevent, slow or cure AD. Official death certificates recorded 121,499 deaths from AD in 2019, the latest year for which data are available. Alzheimer's disease was officially listed as the sixth-leading cause of death in the United States in 2019 and the seventh-leading cause of death in 2020 and 2021, when COVID-19 entered the ranks of the top ten causes of death. Alzheimer's remains the fifth-leading cause of death among Americans age 65 and older. Between 2000 and 2019, deaths from stroke, heart disease and HIV decreased, whereas reported deaths from AD increased more than 145%. More than 11 million family members and other unpaid caregivers provided an estimated 16 billion hours of care to people with Alzheimer's or other dementias in 2021. These figures reflect a decline in the number of caregivers compared with a decade earlier, as well as an increase in the amount of care provided by each remaining caregiver. Unpaid dementia caregiving was valued at $271.6 billion in 2021. Its costs, however, extend to family caregivers' increased risk for emotional distress and negative mental and physical health outcomes - costs that have been aggravated by COVID-19. Members of the dementia care workforce have also been affected by COVID-19. As essential care workers, some have opted to change jobs to protect their own health and the health of their families. However, this occurs at a time when more members of the dementia care workforce are needed. Average per-person Medicare payments for services to beneficiaries age 65 and older with AD or other dementias are almost three times as great as payments for beneficiaries without these conditions, and Medicaid payments are more than 22 times as great. Total payments in 2022 for health care, long-term care and hospice services for people age 65 and older with dementia are estimated to be $321 billion. A recent survey commissioned by the Alzheimer's Association revealed several barriers to consumers' understanding of MCI. The survey showed low awareness of MCI among Americans, a reluctance among Americans to see their doctor after noticing MCI symptoms, and persistent challenges for primary care physicians in diagnosing MCI. Survey results indicate the need to improve MCI awareness and diagnosis, especially in underserved communities, and to encourage greater participation in MCI-related clinical trials.

Spousal caregiving, widowhood, and cognition: A systematic review and a biopsychosocial framework for understanding the relationship between interpersonal losses and dementia risk in older adulthood

Accumulating research suggests that stressful life events, especially those that threaten close intimate bonds, are associated with an increased risk of dementia. Grieving the loss of a spouse, whether in the form of caregiving or after the death, ranks among 'life's most significant stressors', evoking intense psychological and physiological distress. Despite numerous studies reporting elevated dementia risk or poorer cognition among spousal caregivers and widow(er)s compared to controls, no review has summarized findings across cognitive outcomes (i.e., dementia incidence, cognitive impairment rates, cognitive performance) or proposed a theoretical model for understanding the links between partner loss and abnormal cognitive decline. The current systematic review summarizes findings across 64 empirical studies. Overall, both cross-sectional and longitudinal studies revealed an adverse association between partner loss and cognitive outcomes. In turn, we propose a biopsychosocial model of cognitive decline that explains how caregiving and bereavement may position some to develop cognitive impairment or Alzheimer's disease and related dementias. More longitudinal studies that focus on the biopsychosocial context of caregivers and widow(er)s are needed.

Experience of the Healthcare System for Caregivers of Persons with Dementia

Background:

Persons with dementia are generally older and often have multiple other chronic conditions, necessitating several healthcare visits each year. Most live in the community supported by unpaid family caregivers who often assist with healthcare management. Little is known about caregiver and person with dementia experience engaging with the healthcare system, which may be more complicated in the context of cognitive changes such as memory loss.

Methods:

This is a targeted subanalysis of a major code, experience of the healthcare system, which emerged from a qualitative study investigating perspectives of family caregivers (N = 24) of community-dwelling persons with dementia about telemedicine.

Results:

Caregivers were asked to describe their experiences taking persons with dementia to medical visits. Caregivers’ detailed descriptions of the process resulted in three categories related to their experience of the healthcare system: Preparing for Visits, Visit-Related Time and Travel, and In-Visit Experience. Categories revealed the complexity of dyads’ participation in healthcare both in and around actual clinic visits. Findings also highlighted the often-negative impact of person with dementia cognitive symptoms on various stages of the process, which was partly offset by perceived benefits related to social participation and interactions with care teams.

Conclusions:

This study improves our understanding of the experience of engaging with the healthcare system for caregivers and persons with dementia. By explicating the complex factors involved with participating in healthcare visits outside the bounds of clinic walls, this study offers insights for clinicians and systems supporting persons with dementia and caregivers.

Family Caregiver Experience of Resistance to Care: Occurrence Patterns, Context, and Impact on Caregiver

Although the extant literature identifies resistance to care (RTC) as one of the most frequently reported and impactful caregiver (CG) stressors, typical studies that rely on quantitative measures of RTC do not fully explain how and why RTC negatively influences CGs' well-being. As such, it is difficult to develop specific intervention strategies to support CGs in dealing with RTC. Informed by existing literature and tenets from Stress Theory, the current study includes semi-structured interviews with 19 family CGs of community-dependent (non-institutionalized) elders, regarding their RTC experiences. Through a directed qualitative content analysis, we explored occurrence patterns, contextual factors of when and how RTC occurs, how CGs respond to RTC, and its potential impact on CGs' subjective stress. The results revealed distinguishable characteristics of four types of RTC: Frequent-Pervasive, Frequent-Delimited, Transition-Activated, and Shock-to-Unfamiliar/Unexpected. We discuss how recognition of those types of RTC can be integrated into CG support intervention strategies.

Exploration of Cognitive Outcomes and Risk Factors for Cognitive Decline Shared by Couples

Importance

Although couples could share many risk factors of cognitive disorders in their lifetime, whether shared risk factors mediate the shared risk of cognitive disorders has rarely been investigated.

Objective

To identify the risk factors of cognitive decline shared within couples and investigate their mediating roles in the shared risk of cognitive disorders and cognitive functions within couples.

Design, Setting, and Participants

A prospective cohort study was launched in November 1, 2010, and 784 participants were followed up every 2 years until December 31, 2020. This nationwide, multicenter, community-based study included older couples from the Korean Longitudinal Study on Cognitive Aging and Dementia (KLOSCAD) and a cohort of their spouses (KLOSCAD-S).

Exposures

The cognitive disorder of a spouse was defined as mild cognitive impairment or dementia.

Main Outcomes and Measures

The mediating roles of factors shared within couples on the association between one spouse's cognitive disorder and the other's risk of cognitive disorders was examined with structural equation modeling.

Results

Included were 784 KLOSCAD participants (307 women [39.2%] and 477 men [60.8%]; mean [SD] age, 74.8 [4.8] years) and their spouses (477 women [60.8%] and 307 men [39.2%]; mean [SD] age, 73.6 [6.2] years). The cognitive disorder of the KLOSCAD participants was associated with almost double the risk of cognitive disorder of their spouses in the KLOSCAD-S cohort (odds ratio, 1.74; 95% CI, 1.12-2.69; P = .01). History of head injury (β = 0.50; 95% CI, 0.09-0.90; P = .02) and age (β = 2.57; 95% CI, 1.37-3.76; P < .001) mediated the association between cognitive disorder in the KLOSCAD participants and their spouses' risk of cognitive disorder. Physical inactivity mediated the association through major depressive disorder (β = 0.33, 95% CI, 0.09-0.57, P = .006 for physical inactivity; β = 0.28, 95% CI, 0.13-0.44, P < .001 for major depressive disorder). These factors similarly mediated the association between spousal cognitive disorder and cognitive functions such as memory and executive function.

Conclusions and Relevance

These findings suggest that the risk factors shared within couples may mediate approximately three-quarters of the spousal risk of cognitive disorders. Identification of and intervention in the shared risk factors of dementia within couples may reduce the risk of cognitive disorders in the spouses of people with dementia.

Maintaining or letting go of couplehood: Perspectives of older male spousal dementia caregivers

Despite the negative implications for their own health, spouses continue to support each other and maintain their couplehood for as long as possible, including when one of them develops a severe illness. However, with some exceptions, the experiences of older male spousal caregivers have been largely overlooked, and our knowledge of the relational aspects of spousal dementia care is scarce. To respond to this knowledge gap, this article explores the following research questions: How do older male spousal caregivers of wives with dementia talk about changes in their couplehood? What transitions or phases in the relationship can be identified as the caring process evolves and the wife's health continues to deteriorate? To answer these questions, we analyse in-depth interviews with eight purposefully selected men aged 67-92 years old from Iceland and Norway. Our findings reveal that the participants felt that they were gradually losing their couplehood in the sense that they lost their shared everyday life routines, intimacy, joint activities, meaningful communication, and dreams and hopes for the future. Four phases of the dementia caring process were identified: the denial phase, the battle phase, the new reality phase and the redefinition phase. We hope that our findings spur more research on relational challenges as experienced by spouses caring for partners with cognitive decline. In conclusion, we argue that interdisciplinary clinical guidelines for a couple-centred approach in elder care should be developed to urge professional care providers to pay attention to the various changes and challenges that dementia couples undergo to meet not only the health and care needs of dementia patients but also those of their spouses.

Systematic Review of Exercise for Caregiver-Care Recipient Dyads: What Is Best for Spousal Caregivers-Exercising Together or Not at All?

Background and Objectives

Though exercise for care recipients receives considerable emphasis, few dyadic studies focus on caregivers. This systematic review identified dyadic exercise interventions, which measured outcomes for older adult caregivers. Studies that met inclusion criteria were examined to better understand whether caregivers derived greater benefit from exercising with care recipients, or not exercising at all.

Research Design and Methods

PRISMA guidelines were followed to identify quantitative studies of dyadic exercise interventions in which caregivers enrolled with care recipients, and either coparticipated in exercise; or while their care recipients exercised independently, caregivers received a separate, nonexercise intervention or usual care (UC). To be included, studies had to measure physical or psychosocial outcomes for caregivers. Study quality was assessed via the Downs and Black checklist.

Results

Eleven studies met inclusion criteria. In six, the dyad exercised; in five, care recipients exercised while caregivers received a separate program, or UC. Results suggest that caregivers may improve both psychosocial and physical health when exercising together with care recipients. Caregivers who did not exercise but received a separate, nonexercise intervention, such as support, education, or respite, showed psychosocial benefits. Those who received UC were less likely to derive physical or psychosocial benefits. Included studies were fair to good quality with moderate to high risk of bias.

Discussion and Implications

Often examined secondarily, caregivers are overlooked for participation in interventions with care recipients. This analysis suggests that caregivers may benefit from dyadic interventions in which they either exercise together with their care recipients or receive a separate nonexercise intervention or respite.

Low levels of low-density lipoprotein cholesterol and cognitive decline

The relationship between low levels of serum low-density lipoprotein cholesterol (LDL-C) and subsequent cognitive decline remains unclear. The present study aimed to evaluate the longitudinal association between low LDL-C levels and cognition decline in the context of the current aggressive guideline-recommended targets (LDL-C levels less than 55 mg/dL for individuals at very high risk of cardiovascular events, and less than 70 mg/dL for high risk individuals). Data from wave 13 (2016) to wave 14 (2018) of the Health and Retirement Study (HRS) were utilized. LDL-C concentrations measured at wave 13 were categorized into 5 levels, reflecting currently recommended values for lipid lowering treatment. Of 7129 included participants (mean age: 69.0 ± 9.9 years, 60.3% female), we found that compared to participants with LDL-C levels of 70.0-99.9 mg/dL, those with LDL-C levels of <55 mg/dL had significantly slower 2-year decline rates in global cognitive function (0.244 point/year; 95% confidence interval (CI): 0.065-0.422; P = 0.008), working memory (0.068 point/year; 95% CI: 0.004-0.133; P = 0.038), and borderline significantly in episodic memory (0.155 point/year; 95% CI: -0.004-0.315; P = 0.057). Similarly, significantly slower decline rates were observed in those with LDL-C levels of 55.0-69.9 mg/dL. The present study demonstrated that compared with LDL-C levels 70.0-99.9 mg/dL, low LDL-C levels (<70 mg/dL, especially <55 mg/dL) were associated with significantly slower cognitive decline in population-based setting. Future randomized controlled trials are warranted to ascertain the safety and benefit of current aggressive guideline-recommended targets on cognitive function.

Gender Differences in Caregiver Burden Among Family Caregivers of Persons With Dementia

The current study aimed to identify gender-dependent factors that influence caregiver burden among family caregivers of persons with dementia through secondary data analysis. We used a nationally representative survey of 379 family caregivers of persons with dementia completed in 2014. We examined factors affecting the burden experience of male and female caregivers, guided by the stress process model, using hierarchical regression. The analytic sample included 159 males (42%) and 220 females (58%). For males, age of care recipient, being an adult child, social support, instrumental activities of daily living performed, and caregiving impact on caregivers' health influenced burden. For females, co-residence, social support, caregivers' current health, and caregiving impact on caregivers' health impacted burden. Understanding gender differences related to caregiving burden is beneficial for developing effective targeted interventions that support the caregiving role and improve the quality of life of caregivers. [Journal of Gerontological Nursing, 47(7), 33-42.].

Emotion Recognition and Reactivity in Persons With Neurodegenerative Disease Are Differentially Associated With Caregiver Health

BACKGROUND AND OBJECTIVES

Motivated by the high rates of health problems found among caregivers of persons with neurodegenerative disease, we examined associations between deficits in two aspects of care recipients' socioemotional functioning and their caregivers' health.

RESEARCH DESIGN AND METHODS

In 2 studies with independent samples (N = 171 and 73 dyads), caregivers reported on care recipients' emotion recognition and emotional reactivity. Caregiver health was assessed using both self-report measures (Studies 1 and 2) and autonomic nervous system indices (Study 2).

RESULTS

Lower emotion recognition in care recipients was linearly associated with worse self-reported health, faster resting heart rate, and greater physiological reactivity to an acoustic startle stimulus in caregivers. These effects held after accounting for a variety of risk factors for poor caregiver health, including care recipients' neuropsychiatric symptoms. Emotional reactivity showed a quadratic association with health, such that the lowest and highest levels of emotional reactivity in care recipients were associated with lower self-reported health in caregivers.

DISCUSSION AND IMPLICATIONS

Results shed light on the unique associations between two aspects of care recipients' emotional functioning and caregivers' health. Findings suggest potential ways to identify and help caregivers at heightened risk for adverse health outcomes.

Time Effects of Informal Caregiving on Cognitive Function and Well-Being: Evidence From ELSA

BACKGROUND AND OBJECTIVES

As informal caregiving becomes prevalent, its consequences for caregivers' cognitive and socioemotional functioning gain more importance for society. There are inconsistent findings regarding the direction of the impact of caregiving-whether caregiving maintains or compromises functioning-and the impact of time-whether the effects accumulate or are stable. In this study, we elucidated 3 time effects of caregiving-concurrent, cumulative, and lagged effects-on cognitive and socioemotional functioning.

RESEARCH DESIGN AND METHODS

We used data from Wave 1 (2002-2003) to Wave 8 (2016-2017) in the English Longitudinal Study of Ageing (ELSA) and latent growth curve models with the time-varying predictor to investigate 3 time effects of caregiving on cognitive function (memory and executive function) and well-being (life satisfaction and quality of life).

RESULTS

Over and beyond age effects, current caregiving (concurrent effect) was related to worse well-being and better delayed recall. Little robust cumulative effect was found on cognition and well-being. In addition, there were significant and differential lagged effects of caregiving after controlling for concurrent and cumulative effects; that is, caregiving was related to worse well-being and better memory functioning 2-4 years later.

DISCUSSION AND IMPLICATIONS

The differential concurrent and lagged effects of caregiving on cognitive and socioemotional functioning suggest separate mechanisms for different domains of functioning. The nonsignificant cumulative effects but significant lagged effects imply that even one-time caregiving has long-term (2-4 years) consequences for the caregiver's future functioning, and the mechanism of long-term caregiving effects may be more qualitative than quantitative.

2021 Alzheimer's disease facts and figures

This article describes the public health impact of Alzheimer's disease (AD), including incidence and prevalence, mortality and morbidity, use and costs of care, and the overall impact on caregivers and society. The Special Report discusses the challenges of providing equitable health care for people with dementia in the United States. An estimated 6.2 million Americans age 65 and older are living with Alzheimer's dementia today. This number could grow to 13.8 million by 2060 barring the development of medical breakthroughs to prevent, slow or cure AD. Official death certificates recorded 121,499 deaths from AD in 2019, the latest year for which data are available, making Alzheimer's the sixth-leading cause of death in the United States and the fifth-leading cause of death among Americans age 65 and older. Between 2000 and 2019, deaths from stroke, heart disease and HIV decreased, whereas reported deaths from AD increased more than 145%. This trajectory of deaths from AD was likely exacerbated in 2020 by the COVID-19 pandemic. More than 11 million family members and other unpaid caregivers provided an estimated 15.3 billion hours of care to people with Alzheimer's or other dementias in 2020. These figures reflect a decline in the number of caregivers compared with a decade earlier, as well as an increase in the amount of care provided by each remaining caregiver. Unpaid dementia caregiving was valued at $256.7 billion in 2020. Its costs, however, extend to family caregivers' increased risk for emotional distress and negative mental and physical health outcomes - costs that have been aggravated by COVID-19. Average per-person Medicare payments for services to beneficiaries age 65 and older with AD or other dementias are more than three times as great as payments for beneficiaries without these conditions, and Medicaid payments are more than 23 times as great. Total payments in 2021 for health care, long-term care and hospice services for people age 65 and older with dementia are estimated to be $355 billion. Despite years of efforts to make health care more equitable in the United States, racial and ethnic disparities remain - both in terms of health disparities, which involve differences in the burden of illness, and health care disparities, which involve differences in the ability to use health care services. Blacks, Hispanics, Asian Americans and Native Americans continue to have a higher burden of illness and lower access to health care compared with Whites. Such disparities, which have become more apparent during COVID-19, extend to dementia care. Surveys commissioned by the Alzheimer's Association recently shed new light on the role of discrimination in dementia care, the varying levels of trust between racial and ethnic groups in medical research, and the differences between groups in their levels of concern about and awareness of Alzheimer's disease. These findings emphasize the need to increase racial and ethnic diversity in both the dementia care workforce and in Alzheimer's clinical trials.

Bridging the Gap: A Mixed Methods Study Investigating Caregiver Integration for People with Geriatric Syndrome

Introduction

Transitions of care between acute hospital and community settings are points of vulnerability for people with geriatric syndrome. Routinely including informal caregivers into the transition processes may mitigate risk. Guidance for operational aspects of caregiver inclusion is currently lacking in healthcare policy and fails to address the barriers faced by caregivers and healthcare professionals.

Methods

A questionnaire and a semi-structured interview were piloted with acute care physiotherapists who facilitate patient discharge into community settings. The questionnaire was analysed using summary statistics and interviews were thematically analysed by researchers, using NVivo 12 software.

Results

Questionnaire responses indicated mixed satisfaction with current caregiver integration by the multidisciplinary team. Four themes were shaped in the interviews: inconsistent caregiver engagement, individuals working in a system, an outdated model of care, and invisible care gaps.

Discussion

Feedback loops constructed from participant questionnaires and interview responses informed the identification of barriers and solutions. These are system wide and address automated integration, cultural shift, reimbursement models, and flexible structures to enhance informal caregiver participation. Future research is urgently required to translate, implement, and evaluate enhanced caregiver integration to ensure sustainable, person-centred healthcare delivery.

Bridging Healing and Therapy: A Mixed-Methods Study on Support Group Intervention Based on Watson's Theory of Human Caring

The support group process effect on caregiver burden on family members of dementia patients based on Watson's theory of human caring was that a significant difference was found between caregivers and control groups. Qualitatively, the support group process could reduce caregiver burden and improve coping skills.

Association between perceived social support and better cognitive performance among caregivers and non-caregivers

OBJECTIVE

to identify the association between the characteristics of the support network and cognitive performance of older caregivers and compare characteristics between caregivers and non-caregivers.

METHODS

we evaluated 85 older caregivers and 84 older non-caregivers registered with primary care units regarding sociodemographic characteristics, cognition, and social support. Multiple linear regression analysis was performed.

RESULTS

among non-caregivers, significant associations were found between a better cognitive performance and receiving emotional/affectionate support; each one-point increase in the emotional support score and affectionate support score was related to a 0.43-point and 0.39-point increase in cognitive assessment, respectively. Among older caregivers, each one-point increase in the emotional support score was related to a 0.55-point increase in cognitive assessment.

CONCLUSION

strengthening the support networks of older caregivers and encouraging satisfactory exchanges of social support can assist in improving cognitive performance, which can have a positive impact on caregivers' health.

The role of microbial infection in the pathogenesis of Alzheimer's disease and the opportunity for protection by anti-microbial peptides

Alzheimer's disease (AD) is the most common cause of dementia. Its pathology is primarily characterized by extracellular deposits of amyloid β peptide and intracellular neurofibrillary tangles. Current rationales to explain the pathogenesis of AD include amyloid cascade, inflammation, infection defense and anti-microbial protection hypotheses. This review focuses on recent advances in the infection hypothesis, in particular on those pathogenic microbes that act systemically, via periodontal and gastro-intestinal infection routes. It is proposed that the evidence convincingly supports that pathogenic microbial infection is associated with, and is likely a causative trigger for, AD pathology. Microbes can drive AD pathology by two main pathways: either by directly infecting the brain and stimulating amyloid-mediated defence (causative trigger) or indirectly, by stimulating the pro-inflammatory effects of infection. In this context, it follows that anti-microbial/anti-infection therapies could be effective for regulating the pathology and symptoms of AD, depending on the stage of disease. As long-term administration of traditional antibiotic therapy is not recommended, alternative antibiotic agents such as anti-microbial peptides (AMPs), could be preferred for intervention and disease management of AD.

The emotional experience of caregiving in dementia: Feelings of guilt and ambivalence underlying narratives of family caregivers

Objective

The aim of this study was to explore narrative domains of family caregivers’ emotional experiences, beyond intentional and explicitly reported contents, and to examine their associations with subjects defining characteristics, such as gender, kinship, duration of caregiving, and burden levels.

Methods

The study participants were 17 Italian family caregivers (88.23% women) with a mean age of 59.14 years ( SD = 7.76), who provided their loved ones affected by dementia with in-home care. Structured interviews and Caregiver Burden Inventory were administered according to a mixed method design. A computer-aided text analysis was used which allowed the detection of shared narrative domains (cluster analysis) and latent factors organizing the contraposition between them (multiple correspondence analysis).

Findings

Five narrative domains emerged which were respectively referred to as perceived formal support (14.38% of the overall textual corpus), devotion (33.56%), anger (13.70%), sense of loss (18.49%), and feeling of uncertainty (19.86%). Kinship, duration of caregiving, and burden levels were differently associated with such domains. Two latent factors dealing with feelings of guilt and ambivalence explained 62.92% of overall data variance.

Conclusion

Guilt feelings should be carefully taken into account in support intervention with caregivers, with specific regard to stress and anger management. As well, a greater focus on caregivers’ emotion regulation and on the promotion of their problem-solving skills is needed when faced with contrasting beliefs about care decisions or role conflicts.

Attitudes, beliefs, and changing trends of cannabidiol (CBD) oil use among caregivers of individuals with Alzheimer's disease

OBJECTIVES

With the increasing popularity of CBD-based products, especially CBD oil, it is increasingly important to understand what motivates caregivers of individuals with Alzheimer's disease (AD) to use CBD oil as part of treatment. The purpose of this study was to identify the attitudes and beliefs of caregivers of individuals with AD toward CBD oil in Poland, to identify factors that might be associated with the decision to use CBD oil among caregivers, and to explore whether such a decision was discussed with a healthcare professional.

METHOD

A cross-sectional online survey was conducted in Poland. Participation in the study was entirely voluntary and completely anonymous. Caregivers (n = 73) were asked about their practices and attitudes regarding CBD oil.

RESULTS

The most common source of knowledge about CBD oil was an online support group for caregivers. The vast majority of caregivers found CBD to be effective in managing behavioral symptoms of AD and believed that healthcare professionals should offer CBD oil as a part of treatment. However, only 63 % (n = 46) reported consulting with their physician about using CBD oil. The study also demonstrated that some caregivers thought that CBD oil use was illegal in Poland and that their care-recipient may develop a dependence and withdrawal symptoms if they stopped using it.

CONCLUSIONS

The results of the study highlight the positive and negative perceptions among caregivers of people with AD. The study also emphasizes the importance of enhancing communication between caregivers and healthcare professionals to discuss the use of CBD oil in the treatment of individuals with AD.

Social and health-related predictors of family function in older spousal caregivers: a cross-sectional study

Given the benefits of adequate family function for the health and well-being of older adults, it is important to understand what factors predict adequate family function in older people who care for their spouses.