Application of High-Dimensional Propensity Score Methods to the National Health and Aging Trends Study.

BACKGROUND: High-dimensional propensity scoring (HDPS) is a method for empirically identifying potential confounders within large healthcare databases such as administrative claims data. However, this method has not yet been applied to large national health surveys such as the National Health and Aging Trends Study (NHATS), an ongoing nationally representative survey of older adults in the United States and important resource in gerontology research. METHODS: In this Research Practice article, we present an overview of HDPS and describe the specific data transformation steps and analytic considerations needed to apply it to national health surveys. We applied HDPS within NHATS to investigate the association between self-reported visual difficulty and incident dementia, comparing HDPS to conventional confounder selection methods. RESULTS: Among 7 207 dementia-free NHATS Wave 1 respondents, 528 (7.3%) had self-reported visual difficulty. In an unadjusted discrete time proportional hazards model accounting for the complex survey design of NHATS, self-reported visual difficulty was strongly associated with incident dementia (odds ratio [OR] 2.34, 95% confidence interval [CI]: 1.95-2.81). After adjustment for standard investigator-selected covariates via inverse probability weighting, the magnitude of this association decreased, but evidence of an association remained (OR 1.44, 95% CI: 1.11-1.85). Adding 75 HDPS-prioritized variables to the investigator-selected propensity score model resulted in further attenuation of the association between visual impairment and dementia (OR 0.94, 95% CI: 0.70-1.23). CONCLUSIONS: HDPS can be successfully applied to national health surveys such as NHATS and may improve confounder adjustment. We hope developing this framework will encourage future consideration of HDPS in this setting.

Examining First- and Second-Level Digital Divide at the Intersection of Race/Ethnicity, Gender, and Socioeconomic Status: An Analysis of the National Health and Aging Trends Study.

BACKGROUND AND OBJECTIVES: Significant societal and technological changes in the 2010s called for an up-to-date understanding of the digital divide among older adults in the United States. This trend study aimed to examine the effects of race/ethnicity and the intersecting effects of race/ethnicity with other marginalized identities related to gender, income, education, and occupation on the first- and second-level digital divide. RESEARCH DESIGN AND METHODS: Utilizing a nationally representative sample of older community dwellers from the National Health and Aging Trends Study, we conducted weighted logistic regressions at 3 time points (2011/2013, 2015, and 2019). The first-level digital divide was measured by access to working phones or computers/laptops; the second-level divide was measured by 7 activities in personal task, social, and health-related Internet use. RESULTS: The first-level racial/ethnic digital divide became nonsignificant in 2019, whereas the disparities in all second-level measures persisted. The intersecting effects of race/ethnicity with low education and/or low income became nonsignificant in 2019 for personal-task use. However, the interactions with low education and/or low income became significant for social and health-related use in 2015 and/or 2019. DISCUSSION AND IMPLICATIONS: This study highlights the persistence of the second-level racial/ethnic digital divide among older community dwellers in the United States, especially the exacerbated social and health-related digital divide for people of color with low socioeconomic status. By considering intersections of marginalized social identities, policymakers and stakeholders should develop targeted strategies to bridge the digital divide, promote health outcomes, and reduce health disparities.

Health Behaviors, Financial Difficulties, and Depressive Symptoms Among Older Adults Across Gender and Race During the COVID-19 Pandemic.

Background: COVID-19 deeply affected the health and well-being of older adults. This study examines health behavior change and the interrelationships between health behaviors, financial difficulties, and depressive symptoms among older adults across gender and race during the pandemic. Methods: Using Rounds 1, 5, and 10 of the National Health and Aging Trends Study (NHATS) linked with the NHATS COVID-19 dataset, our sample included Medicare beneficiaries aged 65 or older in the U.S. (N = 3,118). We modeled the interrelationships between health behaviors, financial difficulties, and depressive symptoms using a structural equation model. Results: Female participants reported less walking, more changes in eating habits, less sleeping, and less alcohol consumption during the pandemic than before the pandemic compared to male participants. Compared to White, Non-White participants showed higher proportions of experiencing financial difficulties, less walking, less vigorous activity, and changes in time spent eating and sleeping during than before the pandemic. Financial difficulties was positively associated with depressive symptoms and sedentary behavior. Active behavior was negatively associated with depressive symptoms, while sedentary behavior was positively associated with more depressive symptoms. Discussion: Health professionals should consider health behaviors and financial difficulties when intervening on depressive symptoms experienced by older adults since the pandemic.

Functional Decline Over Time and Change in Family and Other Unpaid Care Provided to Community-Dwelling Older Adults Living With and Without Dementia.

OBJECTIVES: To provide a longitudinal analysis of how functional decline over time among older adults affects provision of family and unpaid care, overall and stratified by dementia status. METHODS: Longitudinal cohorts of community-dwelling adults ≥65 years between 2015 and 2017 from the National Health and Aging Trends Study (NHATS; n = 5,103) and their caregivers from the National Study of Caregiving (n = 862 caregivers for 595 NHATS care recipients). A panel data fixed-effects model was used to examine how increases in mobility, self-care, and household activity-related impairment between 2015 and 2017 affected family and unpaid care (care recipient reported: total number of family and unpaid caregivers, total hours of care received; caregiver reported: hours of care provided, caregiving-related emotional, and physical difficulties). RESULTS: Among community-dwelling older adults overall, impairment in 1 additional self-care activity led to 0.12 more caregivers and 19 additional total monthly hours of care. Among those with dementia, impairment in 1 additional self-care activity led to 0.14 more caregivers and 28 additional total monthly hours of care; among those without dementia, this was 0.11 caregivers and 15 total monthly hours of care. For dementia caregivers, impairment in 1 additional self-care activity among their care recipients led to 8% higher probability of caregiving-related emotional difficulty. DISCUSSION: There is a mismatch between the large additional hours of care received by older adults who experience functional decline (particularly self-care activities) and the relatively small accompanying increase in family and unpaid caregivers. Targeted functional supports, particularly for self-care activities, may benefit both older adults and their caregivers.

Determinants of Health and Outcomes in Medicare Recipients With Heart Disease: A Population Study.

CONTEXT: Heart disease (HD) is a primary cause of mortality and morbidity in the United States. While there is a growing body of evidence demonstrating the contribution of social determinants of health (SDoH) to HD outcomes, the impact of combined or individual SDoH on health-related quality of life (HRQoL) in patients with HD is not well understood. OBJECTIVES: To analyze the National Health and Aging Trends Study (NHATS) to explore the relationship of SDoH with HRQoL, advance care planning, and treatment preferences in Medicare beneficiaries with HD. METHODS: The study design was a secondary data analysis using latent class analysis (LCA) and multivariable analysis of NHATS participants with HD, Round 8, that included End of Life Plans and Care questions. RESULTS: 1202 participants, median age 81 years, 57% female, 70% non-Hispanic White, 20% non-Hispanic Black, 10% Other. LCA identified two SDoH risk profiles (low/high), using 12 measures within the NHATS Economic and Social Consequences key concept area. The high-risk SDoH profile participants were more likely to have fair/poor HRQoL, and identify as female, non-White (P < 0.0001); and less likely to have completed advance care planning (P < 0.0001). High-risk SDoH participants were more likely to want life-prolonging treatments (P < 0.0001), however, this association was not significant after adjusting for age, sex, and race (P = 0.344). CONCLUSION: Higher risk SDoH profiles are associated with reduced HRQoL, reduced advance care planning completion, female sex, and non-White race in a cohort of Medicare beneficiaries. These findings provide opportunities to improve SDoH-related care practices in older patients with HD.

Self-Reported Dysphagia and Psychosocial Health Among Community-Dwelling Older Adults: Results of a National Study.

BACKGROUND: The risk of dysphagia increases with age, affecting up to 33% of adults over the age of 65. Older adults with dysphagia are at increased risk for negative physical health outcomes such as aspiration pneumonia and death. However, the relationship between dysphagia and psychosocial health is uncertain in this population. OBJECTIVE: We aimed to assess the associations between dysphagia and psychosocial health among older adults (≥ 65) with self-reported dysphagia. DESIGN: We performed a cross-sectional assessment of the National Health and Aging Trends Study (NHATS) conducted in 2019. MAIN MEASURES: Weighted logistic and linear regression models were used to assess the relationship between self-reported dysphagia and psychosocial health using established patient-reported outcome measures including those for depression, anxiety, and social isolation previously used in NHATS analyses, while adjusting for demographics, comorbid conditions, and risk factors for dysphagia identified by purposeful selection. KEY RESULTS: Among the 4041 adults in this cohort, almost half (40%) were between 70 and 74 years old, more than half were female (55%), and a significantly higher proportion were White, non-Hispanic respondents (78.1%, p < 0.01) compared with other races and ethnicities. There were 428 (10.5%) respondents reporting dysphagia symptoms within the previous month. In the multivariable model, dysphagia was associated with significantly increased odds of anxiety (OR 1.33 [1.06, 1.67]) and a significantly decreased sense of well-being (coefficient - 1.10 [- 1.66, - 0.54]), but no association was detected for social isolation. CONCLUSIONS: When accounting for factors associated with underlying physical health status, self-reported dysphagia is independently associated with negative psychosocial health and warrants attention by healthcare providers. Future studies should aim to identify causal factors and the extent to which interventions may mitigate these factors.

Prevalence of Dementia in American Indians and Alaska Natives Compared to White, Black, and Hispanic Medicare Beneficiaries: Findings from the National Health and Aging Trends Study.

OBJECTIVE: To estimate the prevalence of dementia among American Indian and Alaska Native (AIAN) Medicare beneficiaries and compare the prevalence of dementia in AIANs and other racial and ethnic minority groups-non-Hispanic Blacks (NHBs) and Hispanics-with non-Hispanic Whites (NHWs) Medicare beneficiaries. METHODS: We used survey data from Round 5 of the National Health and Aging Trends Study (NHATS, 2015) (N = 7,449), a nationally representative study of Medicare beneficiaries ages 65 years and older. We used logistic regression to estimate the age- and sex-adjusted prevalence of dementia with 95% confidence intervals by race/ethnicity as well as prevalence differences between groups. RESULTS: The majority of participants were between 65 and 74 years old. Approximately half of them were female. NHWs had a prevalence of 5% for dementia, and AIAIs had a prevalence of 9%, four percentage points higher than NHWs (95%CI 1%, 11%). We estimated a similar difference in the prevalence of dementia in AIAN Medicare beneficiaries compared to NHBs. CONCLUSION: While previous research has reported that AIANs share a similar or lower prevalence of dementia than NHWs, our findings suggest a potentially higher prevalence of dementia among AIAN Medicare beneficiaries. A relatively small number of AIAN resulted in wide confidence intervals for many of our associations. Future research should focus on recruiting a larger sample and on dementia prevalence and unique risk factors within and among AIAN tribes.

With a Little Help From My Friends and Family: Transportation and Caregiving Hours.

OBJECTIVES: To better understand the associations between the driving status of the care recipient and caregiver with provided caregiving hours, more research on the relationships between contextual caregiving factors and driving-related behaviors is needed. METHOD: Using data from Round 7 of the National Health and Aging Trends Study (NHATS) and the linked National Survey of Caregiving (NSOC; n = 1054 dyads), this study explored how caregiver transportation assistance and care recipient driving frequency are associated with caregiving hours. RESULTS: Caregiving hours were highest among caregivers who provided transportation every day and among care recipients who had not driven in the last month. After controlling for covariates, negative binomial regression results indicated that greater caregiver transportation assistance was related to more caregiving hours, while greater care recipient driving frequency was related to less caregiving hours. CONCLUSION: Integrated supports and greater accessibility to transportation services may decrease time spent caregiving.

Competing Risk Analysis of Time to Communal Residence for Elder Orphans.

Elder Orphans, socially/physically isolated older adults without caregiving support, are of interest in an aging population. Lack of caregivers for Elder Orphans may influence relocation to residential care facilities, including skilled nursing or assisted living facilities, compared to aging in place. Using the National Health and Aging Trends Study (NHATS), Competing Risk Survival Analyses were performed to determine if Elder Orphans or those At Risk for becoming elder orphans had increased risk for residential care relocation over nine NHATS waves (2011-2019). Elder Orphans had significantly higher risk for moving to residential care facilities in unadjusted (SHR = 1.780; p = 0.001) and adjusted (SHR = 1.571; p = 0.043) models. Those At Risk for becoming an elder orphan had significantly decreased risk for residential care residence in unadjusted (SHR = 0.517; p < 0.001) and adjusted (SHR = 0.726; p = 0.037) models. As aging in place becomes prioritized in the US healthcare system, understanding caregiving needs of older adults is vital to their health outcomes.

Social isolation, homebound status, and race among older adults: Findings from the National Health and Aging Trends Study (2011-2019).

BACKGROUND: Multiple factors may influence the risk of being homebound, including social isolation and race. This study examines the relationship between social isolation and homebound status by race over 9 years in a sample of adults. METHODS: Utilizing a representative sample of 7788 Medicare beneficiaries aged 65+ from 2011-2019, we assessed the odds of becoming homebound by social isolation. We defined social isolation as the objective lack of contact with others. We defined severe social isolation as scoring a 0 or 1 on a social connection scale from 0 to 4. Homebound status was defined as never leaving home or only leaving home with difficulty. Utilizing a multivariate Cox proportional hazards model adjusting for age, gender, marital status, income, and education, we examined the association between social isolation at baseline and becoming homebound during the study in those who were not initially homebound. RESULTS: Older adults in this study were on average 78 years old. Overall, most were white (69%), female (56.3%), and married (57.8%) and reported that they had a college education or higher (43.9%). Also, at baseline, approximately 25% of study participants were socially isolated, 21% were homebound, and 6.3% were homebound and socially isolated or severely socially isolated. Homebound status at baseline varied by race: Black, 23.9% and white, 16.6% (p < 0.0001). After 9 years, socially isolated black (hazard risk ratio, HRR 1.35, 95% confidence interval CI [1.05,1.73], p < 0.05) and white (HRR 1.25, 95% CI [1.09,1.42], p < 0.01) older adults were at higher risk of becoming homebound. CONCLUSION: Socially isolated black and white adults are more likely to be homebound at baseline and become homebound over time. Further research is needed to determine whether community-based strategies and policies that identify and address social isolation reduce homebound status among community-dwelling older adults.

Development of a Longitudinal Dataset of Persons With Dementia and Their Caregivers Through End-of-Life: A Statistical Analysis System Algorithm for Joining National Health and Aging Trends Study/National Study of Caregiving.

Background: Alzheimer's disease and related dementias (AD/ADRD) are terminal conditions impacting families and caregivers, particularly at end-of-life. Longitudinal, secondary data analyses present opportunities for insight into dementia caregiving and decision-making over time; however, joining complex datasets and preparing them for analysis poses many challenges. Objectives: To describe an approach to linking national survey data of older adults with their primary caregivers to build a prospective, longitudinal dataset, and to share the Statistical Analysis System (SAS) coding statement algorithms with other researchers. Methods: The National Health and Aging Trends Study (NHATS) and National Study of Caregiving (NSOC) are joined using a series of algorithms based on conceptual and operational definitions of dementia, primary caregivers, and the occurrence of death. A series of SAS algorithms resulting in the final longitudinal dataset was created. Results: NHATS/NSOC participants were linked using three preliminary data files (n = 12 427) and one final data join (n = 3305) over nine rounds of data collection. Presence of dementia was defined based on the indicator in the year preceding the last month-of-life (LML) interview. Primary caregivers were defined as the person providing the most frequent care over time. Additional flag variables (LML interview, dementia classification, and cohort (2011 vs 2015)) were created. The SAS algorithms are presented herein. Discussion: The SAS coding statement algorithms provide an opportunity to conduct longitudinal analysis of care for both members of the dyad in the context of dementia and end-of-life. Future research using the proposed dataset can further explore care and caregiving in these populations.

Engagement in Favorite Activity and Implications for Cognition, Mental Health, and Function in Persons Living With and Without Dementia.

Little is known about the impact of engagement in personally meaningful activities for older adults. Thus, this study examines the impact of engagement in one's favorite activity on cognitive, emotional, functional, and health-related outcomes in older adults with and without cognitive impairment. Data were obtained from 1,397 persons living with dementia (PLWD) and 4,719 cognitively healthy persons (CHP) who participated in wave 2 of the National Health and Aging Trends Study (NHATS). Sociodemographic characteristics were examined by cognitive status. A multivariate analysis of variance indicated that, for PLWD, engagement in favorite activity was associated with greater functional independence and decreased depression. For CHP, engagement in favorite activity was associated with greater functional independence, decreased depression and anxiety, and better performance on memory measures. Findings suggest that engagement in valued activities that are considered personally meaningful may have significant and distinct benefits for persons with and without dementia.

Residential Street Block Disorder and Biological Markers of Aging in Older Adults: The National Health and Aging Trends Study.

BACKGROUND: Residential environments are associated with older adults' health, but underlying physiologic causal mechanisms are not well understood. As adults age, street blocks are likely more relevant to their health than the larger neighborhood environment. This study examined the effects of adverse street block conditions on aging biomarkers among older adults. METHODS: We included community-dwelling Medicare beneficiaries aged 67 and older with 2017 biomarker data from the nationally representative National Health and Aging Trends Study (n = 4357). Street block disorder in 2016 was measured using interviewer report of any trash/glass/litter, graffiti, or vacant buildings on participants' blocks. Propensity score models were used to create balanced groups with regard to multiple 2015 participant characteristics, including demographic, socioeconomic, residence, and early-life characteristics. Linear regressions modeled street block disorder as a predictor of 4 aging biomarkers, hemoglobin A1C, high-sensitivity C-reactive protein, interleukin-6, and cytomegalovirus antibodies, before and after applying propensity score weighting. RESULTS: Adjusting for participant sociodemographic characteristics and applying propensity score weights, living on a block with any disorder was associated with 2% higher mean hemoglobin A1C levels (95% confidence interval [CI]: 0.002-0.03), 13% higher C-reactive protein (95% CI: 0.03-0.23), 10% higher interleukin-6 (95% CI: 0.02-0.19), and 19% more cytomegalovirus antibodies (95% CI: 0.09-0.29) compared to living on a block with no disorder. CONCLUSIONS: Street block disorder predicted subsequent aging biomarkers after applying a propensity score approach to account for confounding among a national sample of older adults. Targeting street-level residential contexts for intervention may reduce the risk for poor health in older adults.

Racial/Ethnic Differences in the Longitudinal Effects of Fear of Falling on Falls.

INTRODUCTION: Recent evidence suggests that the effects of fear of falling on falls may differ by race/ethnicity. This study investigated whether race/ethnicity (white, black, and Hispanic) moderated the longitudinal effects of fear of falling on the incidence of falling and having a repeated fall among community-dwelling older adults. METHODS: We used data from 2011 to 2018 of the National Health and Aging Trends Study (NHATS). These included a total of 19,516 person-intervals from 5,113 respondents. Any self-reported fall in the past year was the outcome variable with baseline fear of falling as the predictor and race/ethnicity as the moderator. Covariates included self-reported sociodemographic information, probable depression, chronic conditions, functional impairment, pain, insomnia symptoms, the Clock Drawing Test, the Short Physical Performance Battery, and grip strength. RESULTS: Among respondents who had no experience of falling at baseline, baseline fear of falling increased the odds of having a new onset of fall at 1-year follow-up significantly among blacks, compared to whites (odds ratio [OR] = 1.85, 95% confidence interval [CI] = 1.44-2.38). No significant difference was found for Hispanics. Among respondents who already fell at baseline, baseline fear of falling increased the odds of having a repeated fall at 1-year follow-up significantly among Hispanics, compared to whites (OR = 1.91, 95% CI = 1.06-3.44). No significant difference was found for blacks. CONCLUSIONS: Clear evidence of racial/ethnic differences was found in the relationship between fear of falling and falls among community-dwelling older adults in the USA. Special attention should be paid to black older adults with a fear of falling but have not fallen down recently and Hispanics with fear of falling and have fallen in the past year. Readily available educational programs should be actively advertised to older adults to reduce the fear of falling, and at the same time, culturally tailored educational programs should be developed for older adults from racial/ethnic minority backgrounds.

Collecting Objective Measures of Visual and Auditory Function in a National in-Home Survey of Older Adults.

Maintenance of visual and auditory function is important for preventing the onset of activity limitations and preserving quality of life in later life. To date, national panel studies focused on health and aging have mostly collected subjective (self-reported) measures of visual and auditory function. The National Health and Aging Trends Study (NHATS), a study of Medicare beneficiaries ages sixty-five and older, recently developed a protocol for measuring objective visual and auditory function for its annual, in-home data collection conducted by trained interviewers. The protocol includes three vision tests-distance and near acuity and contrast sensitivity-and one hearing test-pure-tone audiometry-conducted using a tablet platform with results recorded in a scannable booklet. To identify operational issues and evaluate data quality for the proposed set of vision and hearing tests, NHATS incorporated a pilot study into its 2019 round (N = 417 participants and N = 9 interviewers). Using these pilot study data, the objectives of this paper are to: (1) describe the NHATS protocols to collect objective measures of visual and auditory function; (2) evaluate the quality of the data collected; and (3) assess whether results are influenced by interviewers. We found that respondents were highly likely to participate, with cooperation rates for each test about 90 percent. Data were high quality, with low rates of missingness, test results significantly associated with age and self-reported items, and percentages with poor vision or hearing consistent with prior population-based studies. Objective measures were more likely than self-reports to classify participants as having visual and auditory impairments and had stronger relationships with demographic correlates. Interviewer effects were small and not statistically significant in this small sample. Results of this study have demonstrated that objective visual and auditory functioning can be successfully incorporated into an interviewer-administered home-based protocol.

Neighborhood Age Composition and Self-Rated Health: Findings from a Nationally Representative Study.

Neighborhood age composition is an understudied area. Furthermore, existing empirical and conceptual work is conflicting, with some scholarship-indicating neighborhoods with older adults are beneficial and other scholarship suggesting it can be detrimental. Combining data from 7,197 older adults from the first wave (2011) of the National Health & Aging Trends Study and census tract data from the National Neighborhood Change Database, the purposes of our study were to: 1) identify the characteristics of neighborhoods experiencing different types of changes in age composition, and 2) examine the association between neighborhood age composition and self-rated health. Findings indicate that neighborhoods experiencing Concentration (where the number of older adults are declining but their percentage of the total population are increasing), the majority of which are in urban areas, have less aggregate economic resources, more indicators of neighborhood disorder, and less access to services and supports. Regression models also suggest older adults living in Concentration neighborhoods reported lower self-rated health compared to those living in the other three neighborhood types. Findings point to the importance of considering neighborhood age composition when targeting interventions and resources, and the potential consequences of being stuck in place in a neighborhood that does not meet elders' needs.

Caregiver Well-Being and Burden: Variations by Race/Ethnicity and Care Recipient Nativity Status.

BACKGROUND AND OBJECTIVES: Despite growing diversity among the aging population and extensive previous research on racial/ethnic minority caregivers, little research has been conducted on the potentially unique experiences and outcomes of informal caregivers of foreign-born care recipients. Using nationally representative data and the Stress Process Model, the current study examined the differences in caregiver outcomes (care burden, psychological well-being, and self-rated health) by care recipient nativity status (U.S.-born vs. foreign-born) and the extent to which caregiver outcomes vary by care recipient nativity status and caregiver race/ethnicity (non-Hispanic white, non-Hispanic black, Hispanic, and Others). RESEARCH DESIGN AND METHODS: The current study used Round 5 of the National Health and Aging Trends Study and the National Study of Caregiving (N = 1,436). We conducted ordinary least squares regression to analyze the differences in caregiver's outcomes by care recipient nativity status and caregiver race/ethnicity and to investigate the impacts of the inclusion of caregiving factors (background factors, primary stressors, secondary stressors, and resources). RESULTS: Regression analyses showed that only care burden significantly varied by care recipient nativity status after controlling for covariates. Caregivers of foreign-born care recipients reported a higher burden. However, when interactions of care recipient nativity status × caregiver race/ethnicity were introduced, non-Hispanic black and Hispanic caregivers of foreign-born care recipients were more likely to report better psychological well-being and self-rated health compared to their counterparts. Across caregiver groups, better caregiver-care recipient relationship quality and less caregiver chronic conditions were associated with less burden and better caregiver psychological well-being and self-rated health. DISCUSSION AND IMPLICATIONS: Care recipient nativity status and caregiver race/ethnicity may have complex effects on caregiving experiences. Given the observed significant interaction effects for caregiver psychological well-being and self-rated health, cultural factors may affect the extent to which these caregivers appraise their caregiving. Future research should delve into the appropriate ways to assess care stress as well as resilience among each caregiver group. Our results indicate the need for research, education, and practice that assess cultural and within-group differences among caregivers and inform needed changes to structural barriers.

Mobility Device Use and Mobility Disability in U.S. Medicare Beneficiaries With and Without Cancer History.

BACKGROUND/OBJECTIVES: To examine the prevalence of mobility device use in U.S. community-dwelling older adults including older adults with cancer history ("survivors") and to estimate mobility disability noting variation by cancer history, cancer site, and other factors to improve early detection of mobility limitations. DESIGN: Cross-sectional analysis from the 2011 National Health and Aging Trends Study. SETTING: In-person interviews in the homes of study participants. PARTICIPANTS: Nationally representative sample of community-dwelling Medicare beneficiaries, aged 65 and older (n = 6,080 including 1,203 survivors). MEASUREMENTS: Participants were asked about cancer history, pain that limited activity, mobility device use (eg, canes, walkers, wheelchairs, and scooters), history of falls, and medical conditions plus they were assessed for approximate mobility disability using a 3-m gait speed test. The results were scored on a scale of 0 to 4 (0 = lowest, 4 = highest) using criteria from the National Institute on Aging. RESULTS: A total of 19% of older adults and 23% of survivors reported using one or more mobility device, most commonly a single-point cane. Approximately 10% of breast, 6% of prostate, and 3% of colorectal cancer survivors reported using two or more devices in the past month. Survivors had lower mean gait speed scores (2.27) than adults without cancer history (2.39). In regression models, survivors were 18% less likely than adults without cancer history to score high on the gait speed test (odds ratio = .82; P < .05). Prior mobility device use, history of multiple falls, unhealthy weight, Black race, multimorbidity, and pain that limited activity were associated with lower gait speed scores in all participants (all P < .05). CONCLUSION: A greater proportion of older survivors used mobility devices than adults without cancer history. Mobility device use varied by cancer site and was highest in survivors of breast, colorectal, and gynecological cancer. Survivors were also more likely to show signs of mobility disability, based on gait speed, compared with adults without cancer history. These indications, although modest, suggest that older survivors may require special attention to functional changes in survivorship.

Difficulties with health self-management by older adults: The role of well-being.

The purpose of this study was to investigate the association between three aspects of well-being (positive and negative affect, self-realization, and self-efficacy and resilience) and disease self-management or difficulties in managing care. Logistic regression models were used to analyze data from a sample of community-dwelling Medicare beneficiaries 65-years or older who participated in the National Health and Aging Trends Study and responded to well-being and engagement in health care questions (n = 1663). All three aspects of well-being were significantly associated with reduced difficulties in care management for both the participants and their family and friends who assist them. Self-efficacy and resilience had the strongest association; older adults with higher levels of self-efficacy and resilience were more likely to handle care by self. Our findings highlight the importance of incorporating strategies to enhance well-being of older adults to reduce the difficulties of managing activities necessary to stay healthy.

Health-care use and cost for multimorbid persons with dementia in the National Health and Aging Trends Study.

BACKGROUND: Most persons with dementia have multiple chronic conditions; however, it is unclear whether co-existing chronic conditions contribute to health-care use and cost. METHODS: Persons with dementia and ≥2 chronic conditions using the National Health and Aging Trends Study and Medicare claims data, 2011 to 2014. RESULTS: Chronic kidney disease and ischemic heart disease were significantly associated with increased adjusted risk ratios of annual hospitalizations, hospitalization costs, and direct medical costs. Depression, hypertension, and stroke or transient ischemic attack were associated with direct medical and societal costs, while atrial fibrillation was associated with increased hospital and direct medical costs. No chronic condition was associated with informal care costs. CONCLUSIONS: Among older adults with dementia, proactive and ambulatory care that includes informal caregivers along with primary and specialty providers, may offer promise to decrease use and costs for chronic kidney disease, ischemic heart disease, atrial fibrillation, depression, and hypertension.