Disability rates for working-age adults and for the elderly have stabilized, but trends for each mean different results for costs

Has working-age morbidity been declining? Changes over time in survey measures of general health, chronic diseases, symptoms and biomarkers in England 1994-2014

OBJECTIVES

As life expectancy has increased in high-income countries, there has been a global debate about whether additional years of life are free from ill-health/disability. However, little attention has been given to changes over time in morbidity in the working-age population, particularly outside the USA, despite its importance for health monitoring and social policy. This study therefore asks: what are the changes over time in working-age morbidity in England over two decades?

DESIGN, SETTING AND PARTICIPANTS

We use a high-quality annual cross-sectional survey, the Health Survey for England (HSE) 1994-2014. HSE uses a random sample of the English household population, with a combined sample size of over 140 000 people. We produce a newly harmonised version of HSE that maximises comparability over time, including new non-response weights. While HSE is used for monitoring population health, it has hitherto not used for investigating morbidity as a whole.

OUTCOME MEASURES

We analyse all 39 measures that are fully comparable over time-including chronic disease diagnoses, symptomatology and a number of biomarkers-adjusting for gender and age.

RESULTS

We find a mixed picture: we see improving cardiovascular and respiratory health, but deteriorations in obesity, diabetes, some biomarkers and feelings of extreme anxiety/depression, alongside stability in moderate mental ill-health and musculoskeletal-related health. In several domains we also see stable or rising chronic disease diagnoses even where symptomatology has declined. While data limitations make it challenging to combine these measures into a single morbidity index, there is little systematic trend for declining morbidity to be seen in the measures that predict self-reported health most strongly.

CONCLUSIONS

Despite considerable falls in working-age mortality-and the assumptions of many policy-makers that morbidity will follow mortality - there is no systematic improvement in overall working-age morbidity in England from 1994 to 2014.

Treatment of Hypertension in Complex Older Adults: How Many Medications Are Needed?

Background: Many older adults with hypertension receive multiple antihypertensives. It is unclear whether treatment with several antihypertensive classes results in greater cardiovascular benefits than fewer antihypertensive classes. Objectives: We investigated (a) the longitudinal associations between treatment with ≥ 3 versus 1-2 classes and death and major adverse cardiovascular events (MACE) and (b) whether these associations varied by the presence of mobility disability. Methods: We included 6,011 treated hypertensive adults ≥65 from the Medical Expenditure Panel Survey (MEPS), a nationally representative community sample. Times to MACE and death were compared between those receiving ≥3 versus 1-2 classes using multivariable proportional hazards regression. We used inverse probability of treatment weighting to account for indication and contraindication bias. Results: There were no significant differences in the risk of mortality (hazard ratio [HR] = 0.96, p = .769) or MACE (HR = 1.10, p = .574) between the exposure groups, and there were no significant exposure × mobility disability interactions. Discussion: We found no benefit of ≥3 versus 1-2 antihypertensive classes in reducing mortality and cardiovascular events in a representative cohort of older adults, raising concern about the added benefit of additional antihypertensives in the real world.

The Relation of Volunteering and Subsequent Changes in Physical Disability in Older Adults

Objectives

To describe the association between initiating volunteering and changes in physical disability in older adults, and whether intensity and gender modify this relationship.

Methods

Employing propensity score weighted regression adjustment, we calculate changes in disability using a sample of U.S. adults (n = 7,135) in the Health and Retirement Study (1996-2012) not volunteering at baseline but later initiating volunteering (1-99 hr/year or 100+ hours per year) or remaining a nonvolunteer.

Results

Relative to continuous nonvolunteers, low-intensity volunteering is related to 34% lower disability in the low-intensity group (average treatment effect [ATE] = -0.12) and 63% lower in the higher-intensity group (ATE = -0.23). For men, progression was lower only in the highest intensity group (ATE = +0.02), but women experienced similarly less progression of disability (38%-39%) at either level of new engagement (ATE = -0.17 and -0.18).

Discussion

Initiating a new volunteer role in later life is related to decreased progression of disability, at low or high levels for women and only at higher levels for men. This study suggests that volunteer intervention programs may represent a major public health strategy to delay the progression of physical disability for older adults.

Exceptional Human Longevity

Exceptional longevity represents an extreme phenotype. Current centenarians are survivors of a cohort who display delayed onset of age-related diseases and/or resistance to otherwise lethal illnesses occurring earlier in life. Characteristics of aging are heterogeneous, even among long-lived individuals. Associations between specific clinical or genetic biomarkers exist, but there is unlikely to be a single biomarker predictive of long life. Careful observations in the oldest old offer some empirical strategies that favor increased health span and life span, with implications for compression of disability, identification and implementation of lifestyle behaviors that promote independence, identification and measurement of more reliable markers associated with longevity, better guidance for appropriate health screenings, and promotion of anticipatory health discussions in the setting of more accurate prognostication. Comprehensive PubMed literature searches were performed, with an unbiased focus on mechanisms of longevity. Overall, the aggregate literature supports that the basis for exceptional longevity is multifactorial and involves disparate combinations of genes, environment, resiliency, and chance, all of which are influenced by culture and geography.

"Taking a Turn for the Better": Does Self-reported Recovery From Walking Limitation Improve Disability and Mortality Outcomes?

Objectives

Recovery from self-reported walking limitation may be a turning point in an individual's health trajectory and may lead to better physical and mental health in the future. This research examines whether recovery from walking limitation is associated with onset of mobility disability, activities of daily living (ADLs) disability, or mortality among a national sample of older Americans.

Data and Methods

Using Waves 4 through 11 (1998-2012) of the Health and Retirement Study (HRS), discrete-time event history models (N = 12,579 person-intervals) with multiple competing events were estimated using multinomial logistic regression. The risk group was defined as respondents with walking limitation, but free of disability. A lagged measure of recovery was created using 2 adjacent waves, and disability and mortality outcomes were assessed in the subsequent wave (i.e., 2 years later).

Results

Recovery from walking limitation (i.e., difficulty walking one or several blocks) was associated with lower odds of mobility disability (i.e., difficulty walking across the room) onset, ADL with mobility disability onset, ADL without mobility disability onset, and mortality. Recovery from walking limitation was not only predictive of mobility-related outcomes, but also nonmobility-related ADLs and mortality-suggesting that the predictive capacity of recovery extends to multiple physical health outcomes.

Discussion

This research suggests that self-reported recovery from walking limitation may be a turning point in the disabling process and signals a meaningful change in an older adult's functional health trajectory.

Trends in activities of daily living disability in a large sample of community-dwelling Chinese older adults in Hong Kong: an age-period-cohort analysis

BACKGROUND

To examine the trends in activities of daily living (ADL) disability in older Chinese adults in Hong Kong between 2001 and 2012.

METHODS

Using data from the Elderly Health Centres (EHCs) of the Department of Health comprising a total of 54 808 community-dwelling Chinese adults aged ≥65 years in 1 early cohort (1904-1917) and 10 3-year birth cohorts (1918-1920, 1921-1923, 1924-1926, 1927-1929, 1930-1932, 1933-1935, 1936-1938, 1939-1941, 1942-1944, 1945-1947), we examined trends in ADL disability by using age-period-cohort (APC) models. ADL disability was defined as being unable to perform at least 1 of 7 ADL activities (bathing, dressing, toileting, transferring, feeding, grooming, walking) independently. Cross-classified random-effects logistic regressions were performed for each of the APC trends with adjustment for age, period, cohort, sociodemographic, lifestyle, comorbidity and self-rated health.

RESULTS

The mean age of the cohort was 70.9±4.7 (range 65-99) years. The prevalence rate of ADL disability was 1.6%. ADL disability increased with age (p<0.001) and the gradient of the increase was steeper in the older age groups. At the same age, women (1.7%) were more likely to report ADL disability than men (1.4%, p=0.001). For both genders, there was an increase in ADL disability between 2003 and 2012; adjustment for age, cohort and other covariates has diminished the trends observed among men. There was no cohort effect in ADL disability.

CONCLUSIONS

ADL disability in older adults has increased over the last decade. Further study is required to identify possible causes behind the disability trends.

Are Functional and Activity Limitations Becoming More Prevalent among 55 to 69-Year-Olds in the United States?

Objectives

This study examines changes in functional and activity limitations 1998–2012 for individuals 55–69.

Methods

Logistic models are used to estimate trends in limitations in vision, hearing, physical and cognitive functioning, IADLs, and ADLs. Additional models assess the extent to which trends are associated with and differ by education, smoking, and BMI.

Results

Changes in prevalence of limitations in vision, hearing, cognitive functioning, and ADLs are not statistically significant. Limitations in physical functioning declined by 0.37% per year. IADL limitations increased by 1.33% per year, but most of the increase occurred between 2008 and 2010/2012, and are associated with economic hardship during the Great Recession. Increases in education are especially beneficially associated with trends in limitations, but reductions in smoking also appear to be advantageous for some outcomes. Increases in BMI are associated with trends in physical functioning, IADL, and ADL limitation.

Discussion

For Americans 55–69, functional and activity limitations were largely unchanged 1998–2012. Our results suggest that if educational attainment had not increased, most functional and activity limitations potentially could have worsened substantially. Future change in educational attainment is not expected to be so positive. Continued monitoring of trends in activity limitations might well include greater focus on the explanatory roles of environmental factors, including economic circumstances.

Effect of a tailored assistive technology intervention on older adults and their family caregiver: a pragmatic study protocol

BACKGROUND

Many older adults with mobility limitations use assistive technology to help them perform daily activities. However, little attention has been paid to the impact on their family caregivers. This neglect produces an incomplete portrayal of the outcomes of assistive technology provision. This paper describes the protocol for a study that examines the impact of a tailored assistive technology intervention that is inclusive of assistance users and their family caregivers.

METHODS/DESIGN

This research will use a combination of quantitative and qualitative methods. The quantitative portion will be an experimental, single-blinded study in which participants are randomly assigned to either an experimental assistive technology intervention or a standard care group. We will enroll 240 participants (120 dyads) into the study from three Canadian sites. Participants will include older adults (>55) and family caregivers who provide ≥4 h per week of assistance with daily activities and social participation. The primary outcome measure for the older adults will be the Functional Autonomy Measurement System, and the primary outcome measure for the caregivers will be the Caregiver Assistive Technology Outcomes Measure. Qualitative data will be collected through detailed records of the therapists' interventions, as well as through interviews with dyads and therapists following the interventions. Data collection will occur at baseline (T0) with follow-ups at 6 weeks (T1), 22 weeks (T2), and 58 weeks (T3) after baseline evaluation.

DISCUSSION

The findings from this study will help service providers and clinicians to move forward with assistive technology recommendations that are more attuned to the needs of both older adults with mobility limitations and their family caregivers. Additionally, the study's findings will enhance our conceptual understanding of the spectrum of assistive technology outcomes and set the stage for econometric studies assessing cost-effectiveness.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT01640470 . Registered 11/21/2011.

Functional Limitations, Medication Support, and Responses to Drug Costs among Medicare Beneficiaries

OBJECTIVE

Standard Medicare Part D prescription drug benefits include substantial and complex cost-sharing. Many beneficiaries also have functional limitations that could affect self-care capabilities, including managing medications, but also have varying levels of social support to help with these activities. We examined the associations between drug cost responses, functional limitations, and social support.

DATA SOURCES AND STUDY SETTING

We conducted telephone interviews in a stratified random sample of community-dwelling Medicare Advantage beneficiaries (N = 1,201, response rate = 70.0%). Participants reported their functional status (i.e., difficulty with activities of daily living) and social support (i.e., receiving help with medications). Drug cost responses included cost-reducing behaviors, cost-related non-adherence, and financial stress.

STUDY DESIGN

We used multivariate logistic regression to assess associations among functional status, help with medications, and drug cost responses, adjusting for patient characteristics.

PRINCIPAL FINDINGS

Respondents with multiple limitations who did not receive help with their medications were more likely to report cost-related non-adherence (OR = 3.2, 95% CI: 1.2-8.5) and financial stress (OR = 2.4, 95% CI: 1.3-4.5) compared to subjects with fewer limitations and no help; however, those with multiple limitations and with medication help had similar odds of unfavorable cost responses as those with fewer limitations.

CONCLUSION

The majority of beneficiaries with functional limitations did not receive help with medications. Support with medication management for beneficiaries who have functional limitations could improve adherence and outcomes.

Does Assisted Living Capacity Influence Case Mix at Nursing Homes?

Assisted living facilities (ALFs) have grown over the past few decades. If they attract residents with lower care needs away from nursing homes (NHs), NHs may be left with higher case mix residents. We study the relationship between ALF bed market capacity and NH case mix in a state (Virginia) where ALF bed capacity stabilized after a period of growth. Similarly, NH capacity and use had been stable. While it is interesting to study markets in flux, for planning purposes, it is also important to examine what happens after periods of turbulence and adaptation. Our findings show some substitution of ALF for NH care, but the relationship is not linear with ALF market capacity. Communities need to consider the interplay of ALFs and NHs in planning for long-term care services and supports. Policies supporting ALFs may enable care needs to be met in a lower cost setting than the NH.

Disability and care needs among older Americans

CONTEXT

The cost of late-life dependency is projected to grow rapidly as the number of older adults in the United States increases in the coming decades. To provide a context for framing relevant policy discussions, we investigated activity limitations and assistance, care resources, and unmet need for a national sample of older adults.

METHODS

We analyzed the 2011 National Health and Aging Trends Study, a new national panel study of more than 8,000 Medicare enrollees.

FINDINGS

Nearly one-half of older adults, or 18 million people, had difficulty or received help in the last month with daily activities. Altogether, 1 in 4 older adults receiving help lived in either a supportive care (15%) or a nursing home (10%) setting. Nearly 3 million received assistance with 3 or more self-care or mobility activities in settings other than nursing homes, and a disproportionate share of persons at this level had low incomes. Nearly all older adults in settings other than nursing homes had at least 1 potential informal care network member (family or household member or close friend), and the average number of network members was 4. Levels of informal assistance, primarily from family caregivers, were substantial for older adults receiving help in the community (164 hours/month) and living in supportive care settings (50 hours/month). Nearly all of those getting help received informal care, and about 3 in 10 received paid care. Of those who had difficulty or received help in settings other than nursing homes, 32% had an adverse consequence in the last month related to an unmet need; for community residents with a paid caregiver, the figure was nearly 60%.

CONCLUSIONS

The older population-especially those with few economic resources-has substantial late-life care needs. Policies to improve long-term services and supports and reduce unmet need could benefit both older adults and those who care for them.

Behavioral adaptation and late-life disability: a new spectrum for assessing public health impacts

OBJECTIVES

To inform public health efforts to promote independent functioning among older adults, we have provided new national estimates of late-life disability that explicitly recognize behavioral adaptations.

METHODS

We analyzed the 2011 National Health and Aging Trends Study, a study of Medicare enrollees aged 65 years and older (n = 8077). For 7 mobility and self-care activities we identified 5 hierarchical stages--fully able, successful accommodation with devices, activity reduction, difficulty despite accommodations, and receipt of help--and explored disparities and associations with quality of life measures.

RESULTS

Among older adults, 31% were fully able to complete self-care and mobility activities. The remaining groups successfully accommodated with devices (25%), reduced their activities (6%), reported difficulty despite accommodations (18%), or received help (21%). With successive stages, physical and cognitive capacity decreased and symptoms and multimorbidity increased. Successful accommodation was associated with maintaining participation in valued activities and high well-being, but substantial disparities by race, ethnicity, and income existed.

CONCLUSIONS

Increased public health attention to behavioral adaptations to functional change can promote independence for older adults and may enhance quality of life.