The relationship between perceived support and depression in spousal care partners: a dyadic approach

OBJECTIVES

Caregiving within a spousal partnership marks a novel relationship stage for couples. Caregiving introduces new stressors and affects couples' ability to cope, and potentially alters perceptions of emotional support. Prior research on older married couples illustrates how perceived support not only affects an individual's mental health, but also that of their partner. To date, the dyadic relationship between emotional support and mental health is largely unexamined among caregiving partners, where support expectations may differ.

METHOD

Actor partner interdependence models using linear mixed modeling were applied to data from spouses where one partner received caregiving within the 2014 and 2016 waves of the Health and Retirement Study. We examined the cross-sectional and lagged associations between perceived emotional support and strain from a spouse on actor and partner depression scores, as well as whether one was the caregiver or the care recipient moderated associations.

RESULTS

More positive perceptions of support were associated with lower depression scores for oneself (b= -0.55, p < 0.001) and one's partner (b= -0.24, p < 0.001). Actor effects-how one's own perceptions of support associate with one's own depressive symptomology-were stronger for care recipients than for caregivers (b= -0.83, p < 0.001 v. b= -0.26, p < 0.05). Higher perceptions of strain were also associated with higher depression scores for oneself (b = 0.57, p < 0.001) and one's partner (b = 0.39, p < 0.001), associations that remained even in lagged models.

CONCLUSIONS

The observation of both actor and partner effects in this study suggests opportunities to improve care recipient outcomes through intervention with caregivers or both members of the care dyad.

Onasemnogene abeparvovec-xioi: a gene replacement strategy for the treatment of infants diagnosed with spinal muscular atrophy

In May of 2019, the adeno-associated virus (AAV)-based gene therapy onasemnogene abeparvovec-xioi (Zolgensma) became the second Food and Drug Administration (FDA)-approved gene therapy with designated use for infants diagnosed with spinal muscular atrophy (SMA). The decision came nearly 10 years after results of the first preclinical models were initially reported. While the journey was an arduous one, the approval was an indication of the remarkable success of the first in-human clinical trials. According to the traditional classification system of autosomal recessive SMA, of which there are multiple types with phenotypic variability, SMA type 1 is the most common and most severe and represents 45% of the SMA patient population. Children with SMA type 1 cannot lift their heads without assistance and do not live past their second birthday. With Zolgensma, the first treated children with SMA type 1 have reached 5 years of age and some of them achieved the ability to sit unassisted or even walk. In this article, we review the work that led to FDA approval with emphasis on the development of preclinical and clinical studies.

Engaging multi-stakeholder perspectives to identify dementia care research priorities

OBJECTIVES

The purpose of this study was to partner with stakeholders to identify gaps in care for persons living with dementia and their family caregivers and from this list, identify priorities for dementia care research.

METHODS

Using a community-engaged research approach, a Stakeholder Advisory Council (SAC) consisting of diverse membership including persons living with dementia and family caregivers was convened. Through our work with the SAC, along with input from the wider network through a symposium, webinars, and an online learning community, gaps in dementia care and a list of topics for dementia care research was generated. This list was reduced to 46 topics for dementia care research and sent to stakeholders (persons living with dementia, family caregivers, and health/social care professionals in dementia care) to be prioritized by rating each of the 46 topics as "Not so important," "Important," or "Very important." Priorities for dementia care were summarized by frequencies and proportions.

RESULTS

A total of 186 participants completed the survey from August through October 2020, including 23 (12.4%) persons living with dementia, 101 (54.3%) family caregivers, and 62 (33.3%) health/social care professionals. Consistent across stakeholder groups was the focus on research on how best to support families following a diagnosis of dementia. Among persons living with dementia, research focused on support for continuing to live in their own homes was ranked as the highest priority, rated by 91.3% as "Very Important". High priority research areas for family caregivers included interventions to slow cognitive decline (76.3%) as well as non-pharmacological approaches to manage behavioral symptoms (74.7%). The highest priority research topics for health/social care professionals were focused on the diagnosis including benefits of an early diagnosis (71.4%), how best to deliver the diagnosis (70.9%), and supports needed following a diagnosis (78.6%).

CONCLUSIONS

This project draws on the strengths of its multi-stakeholder perspective to support patient-centered outcomes research. Findings are intended to inform those who conduct research and those who fund research about which research topics stakeholders believe are most important and thus have greatest potential to improve the quality of life among people living with dementia and their families.

Assessing acceptability and patient experience of a behavioral lifestyle intervention using fitbit technology in older adults to manage type 2 diabetes amid COVID-19 pandemic: A focus group study

Type 2 diabetes (T2D) contributes to reduced quality of life in older adults, especially in those with comorbidities such as being overweight or obese. Personal fitness technology (Fitbit ®) has the potential to improve the management of T2D. Using a semi-structured interview guide, focus groups were conducted to explore participants' acceptability and experiences following a behavioral lifestyle intervention that integrated Fitbit in overweight/obese older adults with T2D amid the COVID-19 pandemic which began during the time of this study. Focus group transcripts were transcribed and analyzed using thematic analysis. Eighteen (18) of the 20 participants completed the program and focus group interviews. Overall, we observed high acceptability of the program, and participants reported favorable experiences such as increased knowledge of health behaviors, improved diabetes management, and improved quality of life following the behavioral lifestyle intervention, even under stressful life circumstances from COVID-19.

A Conceptual Model to Improve Care for Individuals with Alzheimer's Disease and Related Dementias and Their Caregivers: Qualitative Findings in an Online Caregiver Forum

BACKGROUND

As the population rapidly ages, a growing number of families are engaging in care for individuals living with Alzheimer's disease and related dementias (ADRD). The perceived challenges and burdens that face informal caregivers are enormous.

OBJECTIVE

The objective of this study was to 1) explore from the family caregivers' perspective, the daily lives of individuals living with ADRD, and the challenges family caregivers encounter when caring for a family member with ADRD; and 2) to develop a comprehensive model with the endeavor to improve care for individuals with ADRD and their family caregivers.

METHODS

Posts were extracted from the ALZConnected online caregiving forum in May 2019. Guided by a triangular model focused on Caregiver, Individual with ADRD, and Context of Care, two researchers independently analyzed 654 posts with a combination of deductive and inductive thematic analysis approach. Researchers all agreed on finalized codes and themes.

RESULTS

Thematic analysis resulted in four themes: Individual with ADRD, Caregiver, Dynamic between Caregiver and Individual with ADRD, and Context of Care. The most frequently discussed topics among caregivers were informational and emotional support for caregivers, and the capabilities and functioning of individuals with ADRD.

CONCLUSION

Online forums provide a valuable platform for caregivers to support each other informationally and emotionally, share care strategies, and navigate caregiving burdens. An expanded model was derived to support a comprehensive and dynamic approach to improve care for both caregivers and individuals with ADRD. The unique nature of the caregiver forum data is worthy of further data mining using a novel analysis approach.

The Dyadic Effects of Perceived Support on Depression in Spousal Care Partners

Relationship quality is an important factor affecting care partners’ health and wellbeing. Supportive marital relationships are associated with better physical and subjective health, whereas strain is associated with poorer health. Recent studies now indicate a dyadic effect of relationship quality on health outcomes, such that an individual’s perceptions of their relationship also affects their partner’s outcomes. Few studies have examined the dyadic effects of relationship quality on mental health among older cognitively intact caregiving couples. To address the lack of dyadic research about how perceived support from one’s spouse related to experiences of depression for individuals and their care partners, we apply cross-sectional actor partner interdependence models (APIMs) to data from the Health and Retirement Study (HRS) (N=490 dyads). APIM regression models controlled for participant demographic characteristics, relationship length, and care recipient functional ability. Findings showed that positive perceived support from a spouse had a stronger negative association with one’s own depression for care recipients than for caregivers. Similarly, greater negative perceived support from a partner was associated with higher levels of depression; whether the partner was the caregiver or care recipient did not make a difference in this model. Although there are hundreds of caregiver interventions to address caregivers’ mental health, few have demonstrated improvement in care recipient outcomes. Observation of both actor and partner effects in this study suggests there may be opportunities to improve care recipient and caregiver mental health by targeting interventions to promote high quality relationships with caregivers or both members of the care dyad.

The Differential Effects of Caregiving Intensity on Overnight Hospitalization in the Previous 2 Years

Caregiving for a spouse is considered a major stressor many Americans will encounter during their lifetimes. Although most studies indicate caregiving is associated with experiencing diminished health outcomes, little is known about how this role affects caregivers’ use of acute health services. To understand how spousal caregiving affects the use of acute health services, we use data from the Health and Retirement Study. We apply fixed effects (FE) logistic regression models to examine odds of experiencing an overnight hospitalization in the previous two years according to caregiving status, intensity, and changes in caregiving status and intensity. Models controlled for caregiver gender, age, race, ethnicity, educational attainment, health insurance status, the number of household residents, and self-assessed health. Overall, caregivers were no more likely to experience an overnight hospitalization compared to non-caregivers (OR 0.92; CI 0.84 to 1.00; p-value=0.057). However, effects varied according to the intensity of caregiving and the time spent in this role. Compared to non-caregivers, for example, spouses who provided care to someone with no need for assistance with activities of daily living had lower odds of experiencing a hospitalization (OR 0.77; CI 0.66 to 0.89). In contrast, caregivers who provided care to someone with dementia for 4 to <6 years had 3.29 times the odds of experiencing an overnight hospitalization (CI 1.04 to 10.38; p-value=0.042). Findings indicate that, although caregivers overall appear to use acute health services about as much as non-caregivers, large differences exist between caregivers. Results emphasize the importance of recognizing diversity within caregiving experiences.

Technology-Based Interventions for Nursing Home Residents: Implications for Nursing Home Practice Amid and Beyond the Influence of COVID-19: A Systematic Review Protocol

Background

A growing number of technology-based interventions are used to support the health and quality of life of nursing home residents. The onset of COVID-19 and recommended social distancing policies that followed led to an increased interest in technology-based solutions to provide healthcare and promote health. Yet, there are no comprehensive resources on technology-based healthcare solutions that describe their efficacy for nursing home residents. This systematic review will identify technology-based interventions designed for nursing home residents and describe the characteristics and effects of these interventions concerning the distinctive traits of nursing home residents and nursing facilities. Additionally, this paper will present practical insights into the varying intervention approaches that can assist in the delivery of broad digital health solutions for nursing home residents amid and beyond the impact of COVID-19.

Methods

Databases including PubMed, PsycINFO, CINAHL, and Scopus will be used to identify articles related to technology-based interventions for nursing home residents published between January 1^st, 2010 to December 4^th, 2020. Titles, abstracts, and full-texts papers will be reviewed against the eligibility criteria. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses procedures will be followed for the reporting process, and implications for existing interventions and research evaluated by a multidisciplinary research team.

Results

NA-protocol study.

Conclusions

Our study will fill critical gaps in the literature by providing a review of technology-based interventions tested in the nursing home setting. As the older adult population grows, there is an urgent need to identify effective technology-based interventions that can address the distinctive characteristics and preferences of nursing home residents. Clear and comprehensive understanding of how available technology-based health solutions facilitate healthcare for nursing home residents will shed light on the approaches open to residents to fend off the negative health consequences amid and beyond the influence of COVID-19.

Systematic Review Registrations

PROSPERO CRD 42020191880.

Fitness is associated with lower inflammatory markers in obesity: the FATCOR study

Background

Obesity is associated with chronic low-grade inflammation, but exercise has anti-inflammatory properties. It is unknown whether the anti-inflammatory effects of fitness may influence the obesity-associated inflammation.

Purpose

To assess levels of inflammatory markers in fit vs. unfit overweight and obese subjects without known cardiovascular disease.

Methods

Peak oxygen uptake (VO2max) was measured by treadmill cardiopulmonary exercise testing in 566 subjects (mean age 48±9 years, 60% women) with body mass index &gt;27.0 kg/m2 in the FAT associated CardiOvasculaR dysfunction (FATCOR) study. Fitness was defined from age- and sex adjusted reference levels of VO2max. Serum levels of C-reactive protein (CRP), serum amyloid A (SAA) and calprotectin were assessed by Matrix-Assisted Laser Desorption/Ionization Time-Of-Flight (MALDI-TOF) mass spectrometry and log transformed before inclusion in analyses.

Results

Fit subjects (n=147) were older and had less metabolic syndrome, obesity and hypertension compared to unfit subjects (n=419) (all p&lt;0.05). Serum levels of CRP and SAA were lower in fit subjects vs. unfit (p&lt;0.01), while serum calprotectin showed no difference (p=0.06). In multivariable logistic regression analyses, lower CRP (odds ratio [OR] 0.73, 95% confidence interval [CI] 0.61–0.87, p&lt;0.001) and SAA (OR 0.61, 95% CI 0.40–0.93, p=0.02) remained associated with being fit after adjusting for age, sex, obesity, metabolic syndrome and hypertension. When looking at obese (n=357, fit n=53) and overweight subjects (n=209, fit n=94) separately, lower CRP (OR 0.60, 95% CI 0.46–0.78, p&lt;0.001) and SAA (OR 0.44, 95% CI 0.24–0.83, p=0.01) remained associated with being fit in obese, but not in overweight subjects after adjustment for age, sex and metabolic syndrome.

Conclusion

Fitness was associated with lower circulatory inflammatory markers in obesity independent of cardiometabolic risk factors. Our results suggest that fitness may promote cardiovascular benefit through the anti-inflammatory properties of exercise also in obesity.

Funding Acknowledgement

Type of funding source: Public grant(s) – National budget only. Main funding source(s): The Western Norway Regional Health Authority

Technology-Based Interventions for Nursing Home Residents: Implications for Nursing Home Practice Amid and Beyond the Influence of COVID-19: A Systematic Review Protocol

Background: A growing number of technology-based interventions are used to support the health and quality of life of nursing home residents. The onset of COVID-19 and recommended social distancing policies that followed led to an increased interest in technology-based solutions to provide healthcare and promote health. Yet, there are no comprehensive resources on technology-based healthcare solutions that describe their efficacy for nursing home residents. This systematic review will identify technology-based interventions designed for nursing home residents and describe the characteristics and effects of these interventions concerning the distinctive traits of nursing home residents and nursing facilities. Additionally, this paper will present practical insights into the varying intervention approaches that can assist in the delivery of broad digital health solutions for nursing home residents amid and beyond the impact of COVID-19. Methods: Databases including PubMed, PsycINFO, CINAHL, and Scopus will be used to identify articles related to technology-based interventions for nursing home residents published between January 1 st , 2020 to July 7 th , 2020. Titles, abstracts, and full-texts papers will be reviewed against the eligibility criteria. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses procedures will be followed for the reporting process, and implications for existing interventions and research evaluated by a multidisciplinary research team. Results: NAâ€"protocol study Conclusions: Our study will fill critical gaps in the literature by providing a review of technology-based interventions tested in the nursing home setting. As the older adult population grows, there is an urgent need to identify effective technology-based interventions that can address the distinctive characteristics and preferences of nursing home residents. Clear and comprehensive understanding of how available technology-based health solutions facilitate healthcare for nursing home residents will shed light on the approaches open to residents to fend off the negative health consequences amid and beyond the influence of COVID-19. Systematic Review Registrations: PROSPERO CRD 42020191880.

In vitro activity of oritavancin alone or in combination against vancomycin-susceptible and -resistant enterococci

OBJECTIVES

The optimal treatment for serious infections due to Enterococcus spp. is unknown although combination antimicrobial therapy is often recommended for invasive infections to achieve bactericidal activity and improve clinical outcomes. Oritavancin is a novel lipoglycopeptide agent with in vitro activity against enterococci, including vancomycin-resistant VanA-type Enterococcus faecium. Data on its activity in combination with other antibacterials are limited. The objective of this study was to evaluate the activity of oritavancin alone and in combination with ceftriaxone, daptomycin, gentamicin, linezolid and rifampicin against vancomycin-susceptible and -resistant enterococci in in vitro time-kill analyses.

METHODS

Five enterococcal strains were used for all experiments: three vancomycin-resistant VanA-type E. faecium clinical bloodstream isolates, vancomycin-resistant VanA-type E. faecium ATCC 700221 and vancomycin-susceptible Enterococcus faecalis ATCC 29212. Individual drugs were tested at ¼, ½, 1, 2 and 4× MIC. Oritavancin combination experiments were performed with each agent at ¼× MIC.

RESULTS

Daptomycin was the most active single agent and was bactericidal against all strains at 4× MIC, followed by oritavancin, which was bactericidal against all three clinical VRE strains at ≥2× MIC. In combination experiments at ¼× MIC, oritavancin was synergistic with gentamicin against strains not displaying high-level aminoglycoside resistance. No other synergy against VRE strains was observed in any experiment. Strain- and drug-dependent antagonism was observed for many combinations.

CONCLUSIONS

These in vitro data do not support the routine use of combination therapy with oritavancin in the treatment of infections due to VRE.

Determination of Fumonisins B1 and B2 in Corn and Corn Flakes by Liquid Chromatography with Immunoaffinity Column Cleanup: Collaborative Study

A liquid chromatographic (LC) method for the determination of fumonisins B1 (FB1) and B2 (FB2) in corn and corn flakes was collaboratively studied by 23 laboratories, which analyzed 5 blind duplicate pairs of each matrix to establish the accuracy, repeatability, and reproducibility characteristics of the method. Fumonisin levels in the corn ranged from &lt;0.05 (blank) to 1.41 μg/g for FB1 and from &lt;0.05 to 0.56 μg/g for FB2, whereas in the corn flakes they ranged from &lt;0.05 to 1.05 μg/g for FB1 and from &lt;0.05 to 0.46 μg/g for FB2. The method involved double extraction with acetonitrile–methanol–water (25 + 25 + 50), cleanup through an immunoaffinity column, and LC determination of the fumonisins after derivatization with o-phthaldialdehyde. Relative standard deviations for the within-laboratory repeatability (RSDr) of the corn analyses ranged from 19 to 24% for FB1 and from 19 to 27% for FB2; for the corn flakes analyses, RSDr ranged from 9 to 21% for FB1 and from 8 to 22% for FB2. Relative standard deviations for the between-laboratories reproducibility (RSDR) of the corn analyses ranged from 22 to 28% for FB1 and from 22 to 30% for the FB2; for corn flakes analyses, RSDR ranged from 27 to 32% for FB1 and from 26 to 35% for FB2. Mean recoveries of FB1 and FB2 from corn spiked with FB1 at 0.80 μg/g and with FB2 at 0.40 μg/g were 76 and 72%, respectively; for corn flakes spiked at the same levels recoveries were 110 and 97% for FB1 and FB2, respectively. HORRAT ratios for the analyses of corn ranged from 1.44 to 1.53 for FB1 and from 0.96 to 1.48 for FB2, whereas for corn flakes they ranged from 1.60 to 1.82 for FB1 and from 1.39 to 1.68 for FB2.

STRESS, DEPRESSION, AND COGNITIVE FUNCTION IN ADRD FAMILY CAREGIVERS

The rapidly growing number of individuals over the age of 55 stresses the need to identify unique factors to decrease older adults’ vulnerability to psychiatric and neurodegenerative disorders, especially among high-risk groups such as family caregivers to persons with Alzheimer’s disease or related dementias (ADRD). In this project, we investigated physiological stress responses, depression, and cognitive functioning. Using data from the Midlife in the United States database, we examined differences in physiological stress responses, depressive symptoms, and cognitive function (including working memory, episodic memory, verbal ability, processing speed, and executive functioning) between ADRD and non-ADRD caregivers. Results from the secondary analysis revealed a decrease in cognitive function, an increase in depressive symptoms and disrupted physiological responses in ADRD caregivers. These data suggest that the unique aspects of ADRD caregiving are a risk factor for the onset of psychiatric and neurodegenerative disorders. The results of this study support the development of targeted interventions to reduce the risk of depression and cognitive decline among ADRD caregivers. The specific focus on older adult ADRD caregivers, physiological processes, mental health, and dementia is unique in the field of aging and provides a critically needed new paradigm for identifying strategies to support ADRD caregivers and understanding the development of ADRD.

THE EFFECT OF PERCEIVED APPRECIATION ON CAREGIVER WELL-BEING: A TEST OF EQUITY THEORY

Equity theory suggests that equal (reciprocal) exchange of support in social relationships leads to better outcomes for members. However, in caregiving, exchange of support may become unbalanced due to heightened instrumental support from caregivers (CG). Imbalance may be exacerbated in dyads where the care recipient (CR) has dementia, since cognitive changes can attenuate expression of social support. One way social support is demonstrated in through show of appreciation. We used data from National Study on Caregiving (NSOC) to test whether CGs who did not feel appreciated by CRs were more likely to experience depression in the future. To accomplish this, we applied lagged dependent variable (LDV) models to the 2011 and 2015 NSOC waves (N=150). CGs who felt appreciated by the CR in the 2011 wave had 0.22 times the odds of being depressed in 2015 as those who did not feel appreciated by the CR (CI 0.07 to 0.68). This effect appears to exist primarily among CGs to people with dementia. In stratified models, we found CGs to people with dementia in 2015 had 0.04 times the odds of being depressed in 2015 if they previously felt appreciated by the CR (CI 0.003 to 0.40). A statistically significant effect was not observed among those assisting someone without depression (OR=0.65, CI 0.22 to 1.91). Results suggest that CGs to people with dementia who feel appreciated have less risk of experiencing depression. Findings have applications for future interventions for caregiver wellbeing, such as enhancing perceived appreciation (e.g., cognitive restructuring, communication training).

SUPPORTING FAMILY CAREGIVERS: HOW DOES RELATIONSHIP STRAIN OCCUR IN CAREGIVING DYADS? A QUALITATIVE STUDY

Family members and spouses are usually the primary caregivers for older adults. Providing direct care can be stressful, strenuous, and time-consuming for caregivers, potentially leading to frustration and anger towards care recipients. This can be detrimental to the relationship quality of the caregiving dyad. Though caregiver strain and burden have been extensively studied, there is limited information on the development of relationship strain. To explore how relationship strain occurs between caregivers and care recipients, 8 focus groups (N=62) and 8 semi-structured telephone interviews were conducted with caregivers in Los Angeles, inquiring about relationship quality with their care recipients and when frustration and anger occurs. Inductive coding was used to create coding schemas. Findings showed that most caregivers reported relationship strain occurring after taking on the caregiving role, and frustration and anger arose when providing ADLs, especially during bathing and toileting. Although these caregivers had initially experienced strain in their relationships, a recurring theme that emerged was that they developed strategies to decrease frustration and anger and improve the quality of their relationships with their care recipients. Direct communication with caregivers is important in designing a structured and effective intervention. These findings help inform an intervention for new caregivers to help them identify what can lead to relationship strain, as well as teach them reliable strategies to manage frustration and anger towards their care recipients.

CONTEXTS SURROUNDING PSYCHOLOGICAL MISTREATMENT AND NEGLECT BY CAREGIVERS TO PEOPLE WITH DEMENTIA

This presentation examines the individual experiences of caregivers using psychological mistreatment and neglect. When a caregiver indicated psychological mistreatment (e.g., yelling) or neglect (e.g., skipping necessary care) occurred on their daily diary, they were asked what they were doing and how they felt when the event occurred. Text responses were analyzed using content analysis. When psychological mistreatment occurred, there was often a triggering event. For example, 43.8% of caregivers reported they were responding to a behavioral symptom, and 28% indicated something inconvenient occurred. Caregivers were mostly frustrated/angry (68.8%) and annoyed (21.9%) when they used psychological mistreatment. When the caregiver neglected the recipient, 43.5% of caregivers reported the recipient refused to receive care and 30% reported prioritizing other care activities. In cases of neglect, caregivers were frustrated/angry (39.1%) and worried/anxious (30.4%). Findings indicate psychological mistreatment and neglect occur in unique contexts; prevention of these behaviors likely will require distinct intervention strategies.

SUPPORTING FAMILY CAREGIVERS: HOW DO CAREGIVERS OF OLDER ADULTS COPE WITH ROLE STRAIN? A QUALITATIVE STUDY

Qualitative research on positive coping approaches actually used by caregivers can inform interventions that can be feasibly implemented. Absent from previous qualitative research is how caregivers respond to strain in the relationship, specifically. Eight focus groups were conducted with a purposeful sample of racially and ethnically diverse family caregivers in Los Angeles (n=75). An additional 8 in-depth follow-up interviews were conducted. Content analysis was used to understand the mechanisms employed by caregivers to cope with strain and tension in the caregiving relationship. Preliminary results revealed twenty-two individual themes, which were subsequently grouped into four main superordinate themes: 1) Self-care; 2) Adaptation of behaviors and feelings; 3) Seeking and utilizing assistance and respite; and 4) Education and support groups. This work can help inform the design of programs to support caregivers and prevent potentially harmful behaviors, through understanding the experiences of caregivers in their own words.