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.

Prevalence of and factors associated with homebound status among adults in urban and rural Spanish populations.

BACKGROUND: There is a marked growth in the number of homebound older adults, due mainly to increased life expectancy. Although this group has special characteristics and needs, it has not been properly studied. This study thus aimed to measure the prevalence of homebound status in a community-dwelling population, and its association with both socio-demographic, medical and functional characteristics and the use of health care and social services. METHODS: We used instruments coming under the WHO International Classification of Functioning (ICF) framework to carry out a cross-sectional study on populations aged 50 years and over in the province of Zaragoza (Spain), covering a total of 1622 participants. Persons who reported severe or extreme difficulty in getting out of the house in the last 30 days were deemed to be homebound. We studied associations between homebound status and several relevant variables in a group of 790 subjects who tested positive to the WHODAS-12 disability screening tool. RESULTS: Prevalence of homebound status was 9.8 % (95 % CI: 8.4 to 11.3 %). Homebound participants tended to be older, female and display a lower educational level, a higher number of diseases, poorer cognition and a higher degree of disability. In fully adjusted models including disability as measured with the ICF-Checklist, the associated variables (odds ratios and [95 % confidence intervals]) were: female gender (3.75 [2.10-6.68]); urban population (2.36 [1.30-4.29]); WHODAS-12 disability (6.27 [2.56-15.40]); depressive symptoms (2.95 [1.86-4.68]); moderate pain (2.37 [1.30-4.31] and severe pain (3.03 [1.31-7.01]), as compared to the group with no/mild pain; hospital admissions in the previous 3 months (2.98 [1.25-7.11]); and diabetes (1.87 [1.03-3.41]). Adjustment for ICF-Checklist disability had a notable impact on most associations. CONCLUSIONS: The study shows that homebound status is a common problem in our setting, and that being disabled is its main determinant. Socio-demographic characteristics, barriers and chronic diseases can also be assumed to be playing a role in the onset of this condition, indicating the need for further research, including longitudinal studies on its incidence and associated factors.

Influence of co-existing social isolation and homebound status on medical care utilization and expenditure among older adults in Japan.

OBJECTIVE: To examine whether co-existing social isolation and homebound status influence medical care utilization and expenditure in older adults. METHODS: Postal surveys on social isolation and homebound status were performed on older adults aged ≥65 years residing in a Japanese suburban city. Information on medical care utilization and expenditure was obtained from insurance claims data. These outcomes were examined over a three-year period (December 2008 to November 2011) for all participants (Analysis I, n = 1386) and during the last year of life for mortality cases (Analysis II, n = 107). A two-part model was used to analyze the influence of social isolation and homebound status on medical care utilization (first model: logistic regression model) and its related expenditure (second model: generalized linear model). RESULTS: Almost 12 % of participants were both socially isolated and homebound. Analysis I showed that these participants were significantly less likely to use outpatient and home medical care than participants with neither characteristic (odds ratio: 0.536, 95 % confidence interval: 0.303-0.948). However, Analysis II showed that participants with both characteristics had significantly higher daily outpatient and home medical expenditure in the year before death than participants with neither characteristic (risk ratio: 2.155, 95 % confidence interval: 1.338-3.470). DISCUSSION: Older adults who are both socially isolated and homebound are less likely to regularly utilize medical care, which may eventually lead to serious health problems that require more intensive treatment. Measures are needed to encourage the appropriate use of medical care in these individuals to effectively manage any existing conditions.

Prevalence of and factors related to homebound and semi-homebound older adults in a rural area in Japan.

AIM: The homebound status is associated with unhealthy factors and physical disability. However, the prevalence of those who may be at an earlier stage of the homebound status ("semi-homebound") is unclear. This study thus examines the prevalence of semi-homebound individuals and identifies the associated physical, psychological, and social factors. METHODS: A cross-sectional study invited 1,157 participants aged 65 years and more in rural Japan. The mean age was 74.7 ± 6.8. The survey questionnaire accounted for different parameters, such as age, sex, homebound status, morbidity, instrumental activities of daily living (IADL), and mental health. Ordinal regression analysis examined participants' homebound status; socio-demographic characteristics; and physical, psychological, and social variables. RESULTS: The prevalence of the homebound status was 0.11 (95%CI = 0.99-0.13), and the semi-homebound status was 0.30 (95%CI = 0.28-0.33). In the multivariable analysis, the homebound status was negatively associated with IADL (p < .001), mobility (p < .001), being alone during the day (p < .001), depression and anxiety (p < .05), and self-efficacy for going out (p < .001). DISCUSSION: The prevalence of semi-homebound individuals was approximately 30%. Homebound and semi-homebound individuals were associated with older, female, IADL, functional fitness, being alone during the day, depression and anxiety, and self-efficacy for going out. In the case of psychical, psychological, and social factors, the semi-homebound individuals revealed that these indicators fluctuated between homebound and non-homebound. Our findings further focused on semi-homebound individuals at elevated risks of disability, thereby emphasizing the need for customized intervention. Geriatr Gerontol Int 2021; 21: 1033-1039.

Homebound status among middle-aged and older adults with disabilities in ADLs and its associations with clinical, functional, and environmental factors.

BACKGROUND: Homebound status is associated with poor health, comorbidity, and mortality and represents a major challenge for health systems. However, its prevalence among people with disabilities in the basic activities of daily living (ADLs) is unknown. OBJECTIVES: The objectives were to: (1) examine the prevalence of the homebound status among middle-aged and older adults with disabilities in ADLs, and (2) identify its clinical, functional, and environmental determinants. METHODS: This study included 221 community-dwelling subjects, aged ≥50 years, who applied for long-term care services at the Office for Legal Certification of Long-term Care Need of Coruña (Spain). Each subject had a disability in ADLs and was interviewed by a trained examiner in the subject's home. The participants were considered homebound if they remained inside their home during the previous week. MEASURES: Demographic, clinical, functional, and environmental factors. Multiple logistic regression was used to determine the factors associated with homebound status. RESULTS: The prevalence of homebound status was 39.8%. A multivariate analysis revealed that the presence of architectural barriers at the home entrance (stairs [OR: 6.67, p < 0.001] or a heavy door [OR: 2.83, p = 0.023]), walking ability limitations (OR: 3.26, p = 0.006), and higher age (OR: 1.05, p = 0.04) were associated with homebound status. CONCLUSIONS: Homebound status is a highly prevalent problem among middle-aged and older adults with disabilities in ADLs. Architectural factors in the home and walking ability limitations seem to be important predictors, suggesting that health care interventions should target home adaptations and mobility skills as a means to preventing or decreasing homebound status.