Epidemiology of Homebound Population Among Beneficiaries of a Large National Medicare Advantage Plan.

BACKGROUND: Interest in home-based care is increasing among Medicare Advantage (MA) plans. The epidemiology of homebound MA beneficiaries is unknown. OBJECTIVE: To determine the prevalence, characteristics, predictors, health service use, and mortality outcomes of homebound beneficiaries of a large national MA plan. DESIGN: Cross-sectional. SETTING: National MA plan. PARTICIPANTS: Humana MA beneficiaries in 2022 (n = 2 435 519). MEASUREMENTS: Homebound status was assessed via in-home assessment using previously defined categories: homebound (never or rarely left home in the past month), semihomebound (left home with assistance, had difficulty, or needed help leaving home), and not homebound. Demographic, clinical, health service use, and mortality outcomes were compared by homebound status. RESULTS: In 2022, the overall prevalence of homebound beneficiaries was 22.0% (8.4% of beneficiaries were homebound, and 13.6% were semihomebound). In adjusted models, female sex (odds ratio [OR], 1.36 [95% CI, 1.35 to 1.37), low-income status or dual eligibility for Medicare and Medicaid (OR, 1.56 [CI, 1.55 to 1.57]), dementia (OR, 2.36 [CI, 2.33 to 2.39]), and moderate to severe frailty (OR, 4.32 [CI, 4.19 to 4.45]) were predictive of homebound status. In multivariable logistic regression, homebound status was associated with increased odds of any emergency department visit (OR, 1.14 [ CI, 1.14 to 1.15]), any inpatient hospital admission (OR, 1.44 [CI, 1.42 to 1.46]), any skilled-nursing facility admission (OR, 2.18 [CI, 2.13 to 2.23]), and death (OR, 2.55 [CI, 2.52 to 2.58]). LIMITATION: The study period overlapped the tail end of the COVID-19 pandemic, and data were derived from a single national MA plan, which limits generalizability. CONCLUSION: Overall homebound prevalence in a national MA plan was 22.0% and was independently associated with increased health service use and mortality. Study findings can inform strategic initiatives to identify and manage care for homebound beneficiaries. PRIMARY FUNDING SOURCE: Humana, under a collaborative research agreement with Johns Hopkins University.

Outreach to Low-Income Homebound Older Adults to Increase Access to COVID-19 Self-Test Kits, Missouri, 2022.

COVID-19 self-test kits were distributed to low-income, older adults (n = 2532) with their home-delivered or congregate meals in May 2022. Later, a convenience sample (n = 1108) were contacted for follow-up, and 606 (55%) were reached. Among 79% who remembered getting the test, only 34% already had a test kit, but nearly all liked receiving it (91%) and reported they would use or had used it (93%). Partnering with meal-delivery service providers was feasible to increase access to COVID-19 self-tests for low-income older adults. (Am J Public Health. 2024;114(S1):S65-S68. https://doi.org/10.2105/AJPH.2023.307485).

Effectiveness of non-pharmacological interventions delivered at home for urinary and faecal incontinence with homebound older people: systematic review of randomised controlled trials.

INTRODUCTION: Incontinence is a common, distressing condition, most prevalent in older people. There is an unmet need for effective interventions to support continence. This review focuses on non-pharmacological interventions to reduce incontinence among homebound older people. Aim: to identify interventions with potential to be delivered by care workers, nurses or family members in a person's home. METHODS: Multiple databases were searched until 15 September 2023 for randomised controlled trials reporting home-based interventions for incontinence for older people (≥65 years) living at home. Two reviewers independently screened titles, abstracts and papers against inclusion criteria, then assessed for the Risk of Bias (RoB2). A third reviewer resolved the discrepancies. Primary data were extracted and synthesised. RESULTS: A full-text review of 81 papers identified seven eligible papers (1996-2022, all USA), including n = 636 participants (561 women and 75 men). Two studies focusing on multicomponent behavioural interventions showed benefit, as did one study of transcutaneous tibial nerve stimulation self-administered through electrode-embedded socks. Three, which included cognitively impaired people, reported improvement with toileting assistance programmes, but the effects were not all significant. Results were inconclusive from a study examining the effects of fluid intake adjustments. Interventions were delivered by nurses, three in collaboration with family caregivers. No faecal incontinence interventions met the criteria. CONCLUSION: There is scant evidence for continence supporting interventions delivered in older people's own homes. With an ageing population often reliant on family or social care workers well-placed to support continence promotion and policy drives for services to support older people remaining at home, this evidence gap needs addressing.

[Multimodal Treatment Strategies for Homebound Patients with Severe ME/CFS: A Scoping Review]. / Multimodale Behandlungsstrategien für hausgebundene Menschen mit schwerem ME/CFS: ein Scoping Review.

PURPOSE: This scoping review aims to provide an overview of previously published treatment strategies that are multimodal, rather than purely drug-based and may be considered for home- or bedbound ME/CFS patients. Thus, the focus lies upon the analyses of telemedicine as well as home treatment elements. In addition, the evaluation and assessment methods used in these studies will be further discussed. METHODS: Using the scoping review method, a literature analysis was conducted resulting in a total of 14 publications which met the predefined criteria. Inclusion was based on models applicable to housebound individuals with ME/CFS, focusing on social medicine and psychological support services rather than individual drug strategies. RESULTS: The analysis demonstrated that the appropriate treatment methods were predominantly home visits (n=5) or a telemedicine format (n=7). Studies which used alternative settings were included if conversion to a telemedicine format was viable. The important factors highlighted in several studies (n=8), when considering this patient group, were individualisation and flexibility of the treatment methods, and thus the ability to address the day-to-day levels of impairment. The explicit involvement of families in the treatment plan were described in a total of six studies. In ten articles, the treatment concept was additionally evaluated, predominantly using questionnaires (n=7), whilst the questionnaires used were not consistent. Qualitative evaluations were invariably conducted using Brown and Clarke's thematic analysis (n=3). CONCLUSION: Publications on multimodal treatment strategies for homebound ME/CFS patients are rare. However approaches using home visits or telemedicine are described. The majority of identified publications addressed the need for individualised as well as flexible patient care, whilst some were dedicated to the added value of involving the patients' family. The data outline the specific challenges associated with the care of severely affected ME/CFS patients that should also be considered in the context of research.

Proud but Powerless: A Qualitative Study of Homecare Workers´ Work Experiences and Their Suggestions for How Care for Homebound Older Adults Can Be Improved.

Many older adults with complex care needs live at home due to ageing-in-place policies. This study explored homecare workers' experiences and suggestions for improvements of care. Twelve semi-structured interviews were analyzed thematically, and revealed pride, capability, and satisfaction in their work, yet they feel undervalued and lack support. They advocate for integrated care models, recognition of their competence, flexible work approaches, and committed leadership. This would enhance patient care and address their own working conditions, addressing concerns from being relegated to the bottom of the hierarchy. They emphasize the need for comprehensive approaches, spanning from housekeeping to end-of-life palliative care.

Korean primary health care program for people with disabilities: do they really want home-based primary care?

BACKGROUND: Despite many studies on home-based primary care (HBPC)-related benefits and challenges, little is known about the perspectives of potential target groups of the care and their intention or preference for using it. This study aimed to explore the demand for HBPC from the perspective of people with disabilities (PWDs) and caregivers and identify relevant determinants for that demand. METHODS: Data from the population-based survey conducted in the Gyeonggi Regional Health & Medical Center for People with Disabilities in South Korea were analyzed. Logistic regression analysis was performed to identify relevant determinants for the demand on HBPC. RESULTS: Overall, 22% of respondents required HBPC, and 34.7% of persons aged ≥ 65 years demanded it. Older adults with disability, homebound status, and a need for assistance with daily living activities were associated with a demand for HBPC. Though having severe disability, only 19.49% of self-reported respondents demanded for HBPC, while 39.57% of proxy-reported respondents demanded for HBPC. Among self-reported group, only marital status was a predictor associated with a demand for HBPC. In contrast, among proxy-reported groups, PWDs with external physical disabilities, or with unmet medical needs due to availability barriers reported a higher demand for HBPC. CONCLUSIONS: The demand for HBPC does not derive from the medical demands of the users themselves, but rather the care deficit by difficulty in getting out of the house or in outpatient care. Beyond an alternative to office-based care, HBPC needs to be considered to solve the care deficit and as well as to deal with PWDs' medical problems.

Promoting Connection in the Faith Community Through Letter Writing.

ABSTRACT: Faith community nurses can reduce loneliness and provide connection for homebound members of faith communities through promotion of letter writing. Undergraduate nursing students who were matched with members of their own faith community wrote letters to older adults for 10 weeks as a community service-learning project. Data from the UCLA Loneliness Scale pre- and post-intervention showed reduced loneliness and greater connection among recipients of the letters.

The Experience of Homebound Older Adults During the COVID-19 Pandemic.

BACKGROUND: Homebound older adults have heightened risks for isolation and negative health consequences, but it is unclear how COVID-19 has impacted them. We examine social contact and mood symptoms among previously homebound older adults during the COVID-19 pandemic. DESIGN/SETTING: Cross-sectional analysis using data from the National Health and Aging Trends Study (NHATS), a nationally-representative longitudinal study of aging in the USA. PARTICIPANTS: A total of 3,112 community-dwelling older adults in 2019 who completed the COVID-19 survey in the summer/fall of 2020. MEASUREMENTS: Homebound status was defined via self-report as rarely/never leaving home or leaving the house with difficulty or help in the prior month. We measured limited social contact during COVID-19 (in-person, telephone, video or email contacts

Effects of a Video-Based mHealth Program for Homebound Older Adults: Study Protocol for a Pilot Randomized Controlled Trial.

BACKGROUND: Although homebound older adults are among the highest users of hospital services, the existing health and social services that are provided to them in the community are limited and fragmented. This study attempts to bring this group of older adults to providers' attention by designing a health-social-oriented self-care mobile Health (mHealth) program and subjecting it to empirical testing. The aim of this study is to shift the current reactive, cure-oriented approach to a preventive and health-promoting model, empowering homebound older adults to take an active role in their health, be responsive to their care needs, and subsequently improve their holistic health. METHODS: This is a pilot randomized controlled trial. The study is supported by 5 community centers with an estimated sample size of 68 subjects. The subjects will be randomly assigned to video-based mHealth or control groups when they (1) are aged 60 or over, (2) go outdoors less than once a week in the current 6 months, (3) live within the service areas, and (4) use a smartphone. Subjects in the video-based mHealth group will receive a 3-month program comprising 2 main interventions: nurse case management supported by a social service team and video messages covering self-care topics, delivered via smartphone. The control group will receive usual care. Data will be collected at 2 time points - pre-intervention (T1) and post-intervention (T2). The primary outcome will be self-efficacy, and secondary outcomes will include health outcomes (activities of daily living, instrumental activities of daily living, and medication adherence), perceived well-being outcomes (quality of life and depression), and health service utilization outcomes (outpatient clinic, emergency room, and hospital admission). DISCUSSION: The current study will add to the knowledge gap in using mHealth supported by a health-social team to enhance quality of life and self-care and meet the needs of these particularly vulnerable older adults.

The bidirectional relationship between homebound status and falls among older adults: a longitudinal study.

BACKGROUND: Previous research has shown an association between homebound status and falls among older adults. However, this association was primarily drawn from cross-sectional studies. This study aimed to determine the bidirectional relationship between homebound status and falls among older adults in the community. METHODS: We used data of the community-dwelling older adults from 2011 to 2015 of the National Health and Aging Trends Study, a nationally representative survey of Medicare Beneficiaries in the United States (Sample 1 [No falls at baseline]: N = 2,512; Sample 2 [Non-homebound at baseline]: N = 2,916). Homebound status was determined by the frequency, difficulty, and needing help for outdoor mobility. Falls were ascertained by asking participants whether they had a fall in the last year. Generalized estimation equation models were used to examine the bidirectional association between homebound status and falls longitudinally. RESULTS: Participants with no falls at baseline (n = 2,512) were on average, 76.8 years old, non-Hispanic whites (70.1%), and female (57.1%). After adjusting for demographics and health-related variables, prior year homebound status significantly contributed to falls in the following year (Odds ratio [OR], 1.28, 95% CI: 1.09-1.51). Participants who were non-homebound at baseline (n = 2,916) were on average, 75.7 years old, non-Hispanic white (74.8%), and female (55.8%). Previous falls significantly predicted later homebound status (OR, 1.26, 95% CI: 1.10-1.45) in the full adjusted model. CONCLUSION: This is the first longitudinal study to determine the bidirectional association between homebound status and falls. Homebound status and falls form a vicious circle and mutually reinforce each other over time. Our findings suggest the importance of developing programs and community activities that reduce falls and improve homebound status among older adults.

Factors associated with having home care physicians as an integrated source of medications for chronic conditions among homebound patients.

BACKGROUND: Inappropriate management of medications is a major threat to homebound patients with chronic conditions. Despite many efforts in improving medication reconciliation in ambulatory and inpatient settings, little research has focused on home care settings. In 2016, Taiwan initiated the Integrated Home Health Care programme, which was intended to reduce potentially inappropriate medication management and risks of uncontrolled polypharmacy through the integration of different medication sources for chronic conditions among homebound patients. This study investigated factors associated with having home care physicians as an integrated source of medications for chronic conditions among homebound patients. METHOD: This retrospective cohort study enrolled 3142 community-dwelling homebound patients from Taipei City Hospital. Homebound patients' adherence to using home care physicians as an integrated source of chronic condition medications was defined as having all prescriptions for their chronic conditions prescribed by a single home care physician for at least 6 months. Both patient and home care physician characteristics were analysed. Multivariable logistic regression was applied. RESULTS: Of the 3142 patients with chronic conditions, 1002 (31.9%) had consistently obtained all medications for their chronic illnesses from their home care physicians for 6 months and 2140 (68.1%) had not. The most common chronic diseases among homebound patients were hypertension, diabetes mellitus, dementia, cerebrovascular disease and constipation. Oldest-old patients with poor functional status, fewer daily medications, no co-payment exemption and no recent inpatient experience were more likely to adhere to this medication integration system. In addition, patients whose outpatient physicians were also their home care physicians were more likely to adhere to the system. CONCLUSIONS: The finding suggests that building trust and enhancing communication among homebound patients, caregivers and home care physicians are critical. Patient and provider variations highlight the need for further improvement and policy modification for medication reconciliation and management in home care settings. The improvement in medication management and care integration in home care settings may reduce misuse and polypharmacy and improve homebound patients' safety.

Reasons for refusing referrals and challenges to effectual engagement in tele-treatment for depression among low-income homebound older adults.

Objectives: To describe reasons for refusal to be referred to or enroll in a depression treatment study and post-enrollment challenges to treatment engagement and technology-related problems among low-income homebound individuals aged 50+ years with depression.Methods: Data came from a 3-arm randomized clinical trial that evaluated real-world effectiveness of lay counselor-delivered behavioral activation (BA) versus clinician-delivered problem-solving therapy (PST). Interventionists were embedded in a large home-delivered meals program and treatment sessions were videoconferenced; hence Tele-BA and Tele-PST. We described refusal reasons of those who refused initial case manager referrals (n = 279), telephone screening (n = 64), enrollment (n = 47), or post-enrollment baseline assessments (n = 18). We used inductive thematic analysis to explore challenges to effectual treatment engagement and tele-delivery-related problems among Tele-PST or Tele-BA participants (n = 183) from the interventionists' tele-session process recordings.Results: More than a third of potentially eligible older adults refused their case managers' referral, and a quarter of those who accepted referral refused further screening or enrollment. Three quarters of those who refused reported no interest or need or declined to talk about depression. Others refused given their busy schedule with medical appointments and caregiving. Nearly 80% of Tele-BA or Tele-PST participants had some challenges to effectual engagement in treatment sessions due to environmental and health-related conditions and other life stressors including financial distress. Though many tele-sessions had connectivity and other technology-related problems, these did not affect depression outcomes.Conclusion: Mental health service providers for low-income older adults need to be aware of these challenges when adopting best practice strategies for them.

Home-based primary care in Canada: Five innovative urban practices.

PROBLEM ADDRESSED: While the home-based primary care model offers potential patient and system-level benefits, implementation of interprofessional home-based primary care teams has not been widespread. When caring for homebound patients, family physicians are often not included as regular contributors or participants in the team that coordinates and plans much of the care for these patients. OBJECTIVE OF PROGRAM: To describe a selection of home-based primary care practices and to identify barriers to and facilitators of the creation and sustainability of these models within the publicly funded health care system. PROGRAM DESCRIPTION: Five existing home-based primary care practices were examined: 1 each in Victoria and Vancouver in BC; 1 in Winnipeg, Man; and 2 in Toronto, Ont. The research team conducted semistructured team interviews, interviews with the physician leads, and informal observation of elements of team-based care planning at these 5 sites. From these sources, descriptions of each practice were developed in terms of practice history, context, and initiating factors; practice goals and performance management; and practice design elements, including target population, referral sources, and team composition. A qualitative thematic content analysis was used to extract and distil implementation barriers and facilitators across the 5 practices. Members of each practice team validated the interpretation of thematic information. Substantial heterogeneity was found in the composition of the interprofessional teams. The overarching initiating factor for the home-based component of all practices could be described as identifying and addressing unmet community need. Physician leadership, creative funding models, team camaraderie, and community partnerships were the main facilitators. Limited health system support, geography, and lack of existing models of care were the main barriers. CONCLUSION: Substantial barriers to wider implementation of home-based primary care practices persist. Examination of existing practices identifies the importance of physician leadership and commitment to meeting community need.

Expansion of a House Calls Program for Patients With Dementia During COVID-19.

Homebound older adults with dementia have increased health care use, hospitalization rates, and mortality risk, which are associated with considerable health care costs. A large, unmet need for individuals with dementia is home-based medical care. Although our institution has had a primary care program for homebound patients since 2019, we did not have an analogous program for patients with dementia before the coronavirus disease 2019 (COVID-19) pandemic. However, with increased health risks and challenges associated with the pandemic, we rapidly expanded the program to include facility-based older adults with dementia. We incorporated telemedicine and home-based visits to effectively provide patient-centered care that was aligned with their goals and preferences, and we describe a program example of how we provided care during a COVID-19 outbreak in a large facility. Further research is needed to capture potential cost savings and hospitalization rates for persons with dementia who receive home-based medical care. [Journal of Gerontological Nursing, 48(10), 21-25.].

Mental health of homebound older adults in China.

The mental health status of the homebound population in China is relatively overlooked. A sample of 1,301 older adults from Shandong Province was used to compare the mental health status among homebound, semi-homebound, and non-homebound older adults in China, and examine the moderation effects of loneliness and gender. This study found that, controlling for demographic and physical health status, the homebound population was more likely to have worse mental health status than non-homebound older adults. Experiencing loneliness intensified the adverse effects of being homebound on older adults' mental health. The negative effects of being semi-homebound on mental health were more pronounced among older males than females. Findings from this study suggested that homebound older adults in China experienced psychological challenges. Social programs and interventions may be designed to improve this population's mental health.

Measuring Social Engagement among Low-Income, Depressed Homebound Older Adults: Validation of the Social Engagement and Activities Questionnaire.

Objectives: To investigate the psychometric properties of the 10-item Social Engagement and Activities Questionnaire (SEAQ) to assess social-group, interpersonal interaction, and solitary activities among low-income, depressed homebound older adults (n = 269).Methods: We used principal component analysis (PCA) to evaluate the underlying dimensions of the 10-item full SEAQ and a 6-item abbreviated item set. We assessed evidence of validity for the SEAQ by examining relationships between the SEAQ and older adults' clinical characteristics: perceived social support, disability, and depressive symptoms.Results: PCA results showed two components: (1) a general social-group activities engagement component; and (2) a low level of socialization (i.e., strong negative coefficients on the recreational activities and self-enrichment/educational activities and a negative coefficient for interpersonal interaction activities). The general social-group activities engagement component in both the full and abbreviated SEAQ were significantly positively correlated with the full and abbreviated SEAQ and perceived social support, providing evidence for convergent validity, and they were significantly negatively correlated with disability and depressive symptoms, providing evidence for discriminant validity.Conclusions: The present study provides evidence of validity for the use of the SEAQ to assess social engagement and activities among low-income, depressed homebound older adults.Clinical Implications: The SEAQ may be used in future studies measuring changes in social engagement and activities in these older adults.

Monitoring Cognitive Health Status in Homebound Older Adults: Insights from a Nationwide Request for Information.

The COVID-19 pandemic has fueled growing concerns about the long-term impacts on outcomes in older adults including social isolation and declines in cognitive health. Prior to the pandemic, the Administration for Community Living (ACL) released a nationwide request for information to understand how community-based organizations monitor changes in cognitive status for homebound older adults. This Perspective describes strategies reported by community-based organizations to monitor cognitive status in homebound older adults and notes the potential for technology to mitigate the risk of social isolation and delays in observing cognitive decline, considerations that are especially relevant during COVID-19 amid social distancing requirements.

Modifying Behavioral Activation to Reduce Social Isolation and Loneliness Among Older Adults.

OBJECTIVE: To describe our modification of Behavioral Activation to address social isolation and loneliness: Brief Behavioral Activation for Improving Social Connectedness. Our recent randomized clinical trial demonstrated the effectiveness of the intervention, compared to friendly visit, in alleviating loneliness, reducing depressive symptoms, and increasing social connectedness with lonely homebound older adults receiving home-delivered meals. METHODS: We modified Brief Behavioral Activation Treatment for Depression to address social isolation and loneliness by addressing each of its key elements: Psychoeducation; intervention rationale; exploration of life areas, values and activities; and activity monitoring and planning. The intervention consisted of six weekly sessions, up to 1 hour each. Interventionists were bachelor's-level individuals without formal clinical training who participated in an initial 1-day training as well as ongoing supervision by psychologists and social workers trained in BA throughout the study delivery period. RESULTS: We provide three case examples of participants enrolled in our study and describe how the intervention was applied to each of them. CONCLUSIONS: Our preliminary research suggests that Behavioral Activation modified to address social connectedness in homebound older adults improves both social isolation and loneliness. This intervention has potential for scalability in programs that already serve homebound older adults. Further research is needed to solidify the clinical evidence base, replicate training and supervision procedures, and demonstrate the sustainability of Brief Behavioral Activation for Improving Social Connectedness for homebound and other older adults.

One Year Impact on Social Connectedness for Homebound Older Adults: Randomized Controlled Trial of Tele-delivered Behavioral Activation Versus Tele-delivered Friendly Visits.

OBJECTIVES: Lonely and socially isolated homebound older participants of a randomized trial comparing behavioral activation (BA) versus friendly visiting, both delivered by lay counselors using tele-videoconferencing, were reassessed at 1-year to determine whether benefits at 12 weeks were maintained over time. METHODS: The study reinterviewed 64/89 (71.9%) participants. RESULTS: The positive 12-week impact of tailored BA on 3 indicators of social connectedness (loneliness, social interaction and satisfactions with social support) was maintained, albeit to a lesser degree, over 1 year. The positive impact on depressive symptoms and disability was also maintained. CONCLUSIONS: The intervention's potential reach and scalability are suggested by several factors: participants were recruited by home delivered meals programs during routine assessments; the intervention was brief and delivered by lay counselors; care delivery by tele-videoconferencing is increasingly common. The 1 year outcomes indicate that brief BA delivered by tele-video conferencing can have an enduring impact on social connectedness.

The reciprocal relationship between depression and disability in low-income homebound older adults following tele-depression treatment.

OBJECTIVES: Research has shown ample evidence for reciprocity between depression and disability. We examined whether decreases in disability among low-income, homebound older adults who received brief depression treatments were mediated by improvement in depressive symptoms and vice versa and whether the mediation effects varied by treatment modality. METHODS: In a 3-arm randomized clinical trial, 277 low-income homebound individuals aged 50+ participated in behavioral activation tele-delivered by bachelor's-level lay counselors (Tele-BA), problem-solving therapy tele-delivered by licensed clinicians (Tele-PST), or telephone support calls (attention control). Depressive symptoms were assessed with the 24-item Hamilton Rating Scale for Depression and disability with the 12-item World Health Organization Disability Schedule 2.0. Along with mediation models, mediation was assessed controlling for autoregressive and contemporaneous effects. RESULTS: Mediation models showed evidence of postintervention disability and depression mediating each other in separate mediation models. In the cross-lagged model, in which autoregressive and contemporaneous effects were included, only the depression-to-disability path exhibited mediation. There was no evidence of difference between Tele-BA and Tele-PST. Although the temporal precedence of treatment conditions on the outcomes is apparent, we could not establish a temporal precedence between disability and depression as these two measures exhibited parallel improvement. CONCLUSIONS: Brief depression treatments for low-income homebound older adults were effective in reducing both depression and disability among these disabled older adults. The importance of this study lies in the comparable effects of Tele-BA and Tele-PST. Lay-counselor model is a promising alternative to clinician-delivered psychotherapy for growing numbers of homebound older adults.