Variation in the health outcomes associated with frailty among home care clients: relevance of caregiver distress and client sex

Validating interRAI Chinese self-reported carer needs (SCaN) assessment and predicting caregiving distress among informal Chinese caregivers of older adults

BACKGROUND

This study aims to (1) determine the reliability and validity of the interRAI Chinese Self-reported Carer Needs (SCaN) assessment among informal Chinese caregivers of older adults, (2) identify predictors of caregiving distress in Asian regions with long-standing Confucian values of filial piety and family responsibility.

METHODS

This cross-sectional study recruited 531 informal Chinese caregivers of older adults in Hong Kong, Shanghai, Taiwan, and Singapore. The scale reliability was examined using Cronbach's alphas (α) and McDonald's omega coefficient (ω). The concurrent validity and discriminant validity were assessed using Spearman rank correlations (rho). To examine the predictors of caregiving distress among informal caregivers of older adults, we employed hierarchical linear regression analyses informed by the Model of Carer Stress and Burden and categorized the predictors into six domains.

RESULTS

Results revealed good internal consistency reliability (α = 0.83-0.96) and concurrent validity (rho = 0.45-0.74) of the interRAI Chinese SCaN assessment. Hierarchical linear regression analysis revealed that entering the background factors, primary stressors, secondary stressors, appraisal, and exacerbating factors all significantly enhanced the model's predictability, indicating that the source of caregiving distress is multidimensional. In the full model, caregivers with longer informal care time, lack of support from family and friends, have unmet needs, experience role overload, have sleep problems, and low IADL functioning are at a higher risk of caregiving distress.

CONCLUSIONS

The interRAI Chinese SCaN Assessment was found to be a reliable and valid tool among the Chinese informal caregivers of older adults. It would be useful for determining family caregivers' strengths, needs, and challenges, and tailoring interventions that address the potentially modifiable factors associated with caregiving distress and maximize support. Healthcare providers working in home and community settings should be aware of the early identification of caregiving distress and routine assessment of their needs and empower them to continue taking care of their needs and providing adequate care to the care recipient.

Care networks of home-dwelling older adults in the Netherlands: proof of concept of a network typology

BACKGROUND

Studies on care networks of home-dwelling older adults often focus on network composition. However, looking at network mechanisms (negotiation, navigation and contagion) can be helpful to improve the support generated by the care network. A European study on diabetes patients identified network types based on interaction, which can be beneficial (generative, proxy) or detrimental (struggling, avoidant) to support. This study explored whether these network types are present in care networks of home-dwelling older adults in the Netherlands, and how these types manifest in composition or mechanisms.

METHODS

The present study is a cross-sectional qualitative study of care networks supporting 19 home-dwelling older adults. Face-to-face interviews were conducted with the older adult and their informal and formal caregivers between March and September 2016. Network composition and mechanisms were abstracted from content analysis of interview transcripts, then network type was determined for each network.

RESULTS

Three of the 19 networks had only one respondent and were excluded, yielding 16 for analysis: eight proxy networks, three generative networks, two avoidant networks, one struggling network, and two possibly hybrid networks. In the proxy networks, all negotiation and navigation were centralised by the proxy. In generative networks, negotiation was possible if the older adult could reciprocate, and the network supported this. In avoidant networks, informal and formal caregivers had to deal with an older adult who refused support. In the struggling network, the underlying problem could not be addressed. Furthermore, two networks could either be hybrid network types or networks in a transition process from generative to proxy network.

CONCLUSION

Our results suggest that the network typology developed in the context of diabetes patients is relevant and mostly replicable in networks of multi-morbid older adults. We found that a care network typology based on mechanisms offered additional information beyond network composition. It also appears that the network type can change over time, but more research is needed to confirm this. This study suggests that interventions in avoidant or struggling networks are difficult. Also, actions of network participants seemed aimed at developing proxy networks. Interventions designed to develop or maintain generative networks seem underused.

Examining Characteristics and Service Utilization of South Korean Home Health Care Patients: Secondary Analysis of 10-Year Data From a Tertiary Hospital

This study aimed to identify the characteristics of home health care (HHC) patients, main diagnoses, service type, home visit patterns, and primary caregiver type from a major tertiary hospital in South Korea to provide basic data for tailored nursing care. We used Electronic Health Records (EHRs) data of 1776 patients, from 2011 to 2020, from a premier tertiary hospital in South Korea and conducted secondary data analysis using descriptive statistics, a chi-squared test, and an independent samples t-test. Patients’ mean age (i.e., 50.9% men and 49.1% women) was 74.50 ± 15.48 years. Further, admission to HHC via the outpatient and inpatient department comprised 1047 (59.0%) and 729 patients (41.0%), respectively. Based on the Korean Standard Classification of Diseases, neoplasms (49.9%) were identified as the most common main diagnosis, followed by diseases of the nervous system (10.3%) and musculoskeletal system and connective tissue disease (6.2%). An average of 2.2 homecare nursing services were provided per visit, with lab sampling (43.9%), other intravenous injections (31.0%), and ventilator care (23.0%) being the most frequent services. The total HHC service period for patients via the outpatient department was 76.88 days longer (292.24 vs 215.36 days) than those from the inpatient department. Younger patients were cared for by parents and siblings and older patients by spouses, offspring, and formal caregivers. It is pivotal to identify general characteristics of HHC patients through long-term monitoring and retrospective analysis to provide high-quality and tailored interventions to them.

A comparison of 3 frailty measures and adverse outcomes in the intake home care population: a retrospective cohort study

BACKGROUND

In Ontario, Canada, nearly all home care patients are assessed with a brief clinical assessment (interRAI Contact Assessment [interRAI CA]) on admission. Our objective was to compare 3 frailty measures that can be operationalized using the interRAI CA.

METHODS

We conducted a retrospective cohort study using linked patient-level assessment and administrative data for all Ontario adult (≥ 18 yr) home care patients assessed with the interRAI CA in 2014. We employed multivariable logistic models to compare the Changes in Health, End-stage disease and Signs and Symptoms Scale for the Contact Assessment (CHESS-CA), Assessment Urgency Algorithm (AUA) and the Frailty Index for the Contact Assessment (FI-CA) that was created for this study. Our outcomes of interest were death, hospital admission and emergency department visits within 90 days, and assessor-rated need for comprehensive geriatric assessment (CGA).

RESULTS

In 2014, there were 228 679 unique adult home care patients in Ontario assessed with the interRAI CA. Controlling for age, sex and health region, being in a higher frailty level defined by any measure increased the likelihood of experiencing adverse outcomes. Among all assessments, CHESS-CA was best suited for predicting death and hospital admission, and either AUA or FI-CA for predicting perceived need for CGA. Previous emergency department visits were more predictive of future visits than frailty. Model fit was independent of whether the assessment was completed over the phone or in person.

INTERPRETATION

Frailty measures from the interRAI CA identified patients at higher risk for death, hospital admission and perceived need for CGA. In jurisdictions where the CHESS-CA and AUA are already built into the electronic home care platform, such as Ontario, patients identified as high risk should be prioritized for proactive referral and care planning, and may benefit from greater involvement of primary care and other health professionals in the circle of care.

Sex Differences in Antipsychotic and Benzodiazepine Prescribing Patterns: A Cohort Study of Newly Admitted Nursing Home Residents with Dementia in Ontario, Canada

BACKGROUND

In nursing homes, residents with dementia frequently receive potentially inappropriate medications that are associated with an increased risk of adverse events. Despite known sex differences in clinical presentation and sociodemographic characteristics among persons with dementia, few studies have examined sex differences in patterns and predictors of potentially inappropriate medication use.

OBJECTIVES

The objectives of this study were to examine sex differences in the patterns of antipsychotic and benzodiazepine use in the 180 days following admission to a nursing home, estimate clinical and sociodemographic predictors of antipsychotic and benzodiazepine use in male and female residents, and explore the effects of modification by sex on the predictors of using these drug therapies.

METHODS

We conducted a retrospective cohort study of 35,169 adults aged 66 years and older with dementia who were newly admitted to nursing homes in Ontario, Canada between 2011 and 2014. Health administrative databases were linked to detailed clinical assessment data collected using the Resident Assessment Instrument (RAI-MDS 2.0). Cox proportional hazards models were adjusted for clinical and sociodemographic covariates to estimate the rate of antipsychotic and benzodiazepine initiation and discontinuation in the 180 days following nursing home admission in the total sample and stratified by sex. Sex-covariate interaction terms were used to assess whether sex modified the association between covariates and the rate of drug therapy initiation or discontinuation following nursing home entry.

RESULTS

Across 638 nursing homes, our analytical sample included 22,847 females and 12,322 males. At admission, male residents were more likely to be prevalent antipsychotic users than female residents (33.8% vs 28.3%; p < 0.001), and female residents were more likely to be prevalent benzodiazepine users than male residents (17.2% vs 15.3%, p < 0.001). In adjusted models, female residents were less likely to initiate an antipsychotic after admission (hazard ratio [HR] 0.79, 95% confidence interval [CI] 0.73-0.86); however, no sex difference was observed in the rate of benzodiazepine initiation (HR 1.04, 95% CI 0.96-1.12). Female residents were less likely than males to discontinue antipsychotics (HR 0.89, 95% CI 0.81-0.98) and benzodiazepines (HR 0.82, 95% CI 0.75-0.89). Sex modified the association between some covariates and the rate of changes in drug use (e.g., widowed males exhibited an increased rate of antipsychotic discontinuation (p-interaction = 0.03) compared with married males), but these associations were not statistically significant among females. Sex did not modify the effect of frailty on the rates of initiation and discontinuation.

CONCLUSIONS

Males and females with dementia differed in their exposure to antipsychotics and benzodiazepines at nursing home admission and their patterns of use following admission. A greater understanding of factors driving sex differences in potentially inappropriate medication use may help tailor interventions to reduce exposure in this vulnerable population.

Consumer-Grade Wearable Device for Predicting Frailty in Canadian Home Care Service Clients: Prospective Observational Proof-of-Concept Study

Background

Frailty has detrimental health impacts on older home care clients and is associated with increased hospitalization and long-term care admission. The prevalence of frailty among home care clients is poorly understood and ranges from 4.0% to 59.1%. Although frailty screening tools exist, their inconsistent use in practice calls for more innovative and easier-to-use tools. Owing to increases in the capacity of wearable devices, as well as in technology literacy and adoption in Canadian older adults, wearable devices are emerging as a viable tool to assess frailty in this population.

Objective

The objective of this study was to prove that using a wearable device for assessing frailty in older home care clients could be possible.

Methods

From June 2018 to September 2019, we recruited home care clients aged 55 years and older to be monitored over a minimum of 8 days using a wearable device. Detailed sociodemographic information and patient assessments including degree of comorbidity and activities of daily living were collected. Frailty was measured using the Fried Frailty Index. Data collected from the wearable device were used to derive variables including daily step count, total sleep time, deep sleep time, light sleep time, awake time, sleep quality, heart rate, and heart rate standard deviation. Using both wearable and conventional assessment data, multiple logistic regression models were fitted via a sequential stepwise feature selection to predict frailty.

Results

A total of 37 older home care clients completed the study. The mean age was 82.27 (SD 10.84) years, and 76% (28/37) were female; 13 participants were frail, significantly older (P<.01), utilized more home care service (P=.01), walked less (P=.04), slept longer (P=.01), and had longer deep sleep time (P<.01). Total sleep time (r=0.41, P=.01) and deep sleep time (r=0.53, P<.01) were moderately correlated with frailty. The logistic regression model fitted with deep sleep time, step count, age, and education level yielded the best predictive performance with an area under the receiver operating characteristics curve value of 0.90 (Hosmer-Lemeshow P=.88).

Conclusions

We proved that a wearable device could be used to assess frailty for older home care clients. Wearable data complemented the existing assessments and enhanced predictive power. Wearable technology can be used to identify vulnerable older adults who may benefit from additional home care services.

Trajectories of health system use and survival for community-dwelling persons with dementia: a cohort study

OBJECTIVES

To determine the long-term trajectories of health system use by persons with dementia as they remain in the community over time.

DESIGN

Population-based cohort study using health administrative data.

SETTING

Ontario, Canada from 1 April 2007 to 31 March 2014.

PARTICIPANTS

62 622 community-dwelling adults aged 65+ years with prevalent dementia on 1 April 2007 matched 1:1 to persons without dementia based on age, sex and comorbidity.

MAIN OUTCOME MEASURES

Rates of health service use, long-term care placement and mortality over time.

RESULTS

After 7 years, 49.0% of persons with dementia had spent time in long-term care (6.8% without) and 64.5% had died (30.0% without). Persons with dementia were more likely than those without to use home care (rate ratio (RR) 3.02, 95% CI 2.93 to 3.11) and experience hospitalisations with a discharge delay (RR 2.36, 95% CI 2.30 to 2.42). As they remained in the community, persons with dementia used home care at a growing rate (10.7%, 95% CI 10.0 to 11.3 increase per year vs 6.7%, 95% CI 4.3 to 9.0 per year among those without), but rates of acute care hospitalisation remained constant (0.6%, 95% CI -0.6 to 1.9 increase per year).

CONCLUSIONS

While persons with dementia used more health services than those without dementia over time, the rate of change in use differed by service type. These results, particularly enumerating the increased intensity of home care service use, add value to capacity planning initiatives where limited budgets require balancing services.

The Incremental Health Care Costs of Frailty Among Home Care Recipients With and Without Dementia in Ontario, Canada: A Cohort Study

OBJECTIVE

In this study, we investigated the incremental 1-year direct costs of health care associated with frailty among home care recipients in Ontario with and without dementia.

METHODS

We conducted a cohort study of 159,570 home care clients aged 50 years and older in Ontario, Canada in 2014/2015. At index home care assessment, we ascertained dementia status using a validated algorithm and frailty level (robust, prefrail, frail) based on the proportion of accumulated to potential health deficits. Clients were followed for 1-year during which we obtained direct overall and sector-specific publicly-funded health care costs (in 2015 Canadian dollars). We estimated the incremental effect of frailty level on costs using a 3-part survival- and covariate-adjusted estimator. All analyses were stratified by dementia status.

RESULTS

Among those with dementia (n=42,828), frailty prevalence was 32.1% and the average 1-year cost was $30,472. The incremental cost of frailty (vs. robust) was $10,845 [95% confidence interval (CI): $10,112-$11,698]. Among those without dementia (n=116,742), frailty prevalence was 25.6% and the average 1-year cost was $28,969. Here, the incremental cost of frailty (vs. robust) was $12,360 (95% CI: $11,849-$12,981). Large differences in survival between frailty levels reduced incremental cost estimates, particularly for the dementia group (survival effect: -$2742; 95% CI: -$2914 to -$2554).

CONCLUSIONS

Frailty was associated with greater 1-year health care costs for persons with and without dementia. This difference was driven by a greater intensity of health care utilization among frail clients. Mortality differences across the frailty levels mitigated the association especially among those with dementia.

Joint impact of dementia and frailty on healthcare utilisation and outcomes: a retrospective cohort study of long-stay home care recipients

OBJECTIVES

To examine the associations between dementia and 1-year health outcomes (urgent hospitalisation, long-term care (LTC) admission, mortality) among long-stay home care recipients and the extent to which these associations vary by clients' frailty level.

DESIGN

A retrospective cohort study using linked clinical and health administrative databases.

SETTING

Home care in Ontario, Canada.

PARTICIPANTS

Long-stay (≥60 days) care clients (n=153 125) aged ≥50 years assessed between April 2014 and March 2015.

MAIN OUTCOME MEASURES

Dementia was ascertained with a validated administrative data algorithm and frailty with a 66-item frailty index (FI) based on a previously validated FI derived from the clinical assessment. We examined associations between dementia, FI and their interactions, with 1-year outcomes using multivariable Fine-Gray competing risk (urgent hospitalisation and LTC admission) and Cox proportional hazards (mortality) models.

RESULTS

Clients with dementia (vs without) were older (mean±SD, 83.3±7.9 vs 78.9±11.3 years, p<0.001) and more likely to be frail (30.3% vs 24.2%, p<0.001). In models adjusted for FI (as a continuous variable) and other confounders, clients with dementia showed a lower incidence of urgent hospitalisation (adjusted subdistribution HR (sHR)=0.84, 95% CI: 0.83 to 0.86) and mortality rate (adjusted HR=0.87, 95% CI: 0.84 to 0.89) but higher incidence of LTC admission (adjusted sHR=2.60, 95% CI: 2.53 to 2.67). The impact of dementia on LTC admission and mortality was significantly modified by clients' FI (p<0.001 interaction terms), showing a lower magnitude of association (ie, attenuated positive (for LTC admission) and negative (for mortality) association) with increasing frailty.

CONCLUSIONS

The strength of associations between dementia and LTC admission and death (but not urgent hospitalisation) among home care recipients was significantly modified by their frailty status. Understanding the public health impact of dementia requires consideration of frailty levels among older populations, including those with and without dementia and varying degrees of multimorbidity.

Caregiver Reward and Burden: Differing Constructs in Family Members Providing Care for Medically Ill Homebound Older Adults

Objective: This study examined the relationship between caregiver burden and reward and how each relates to factors, such as depression, within the caregiving dyad. Method: A total of 101 older adults and their primary family caregivers were recruited upon enrolling in home health care services. Patients were assessed for sociodemographic information, depression, disability, pain, and caregiver support at baseline and at 8 weeks. Caregivers were assessed at baseline for sociodemographic information, depression, caregiver burden, caregiver reward, and caregiving tasks they provide. Results: Burden and reward were significantly inversely correlated, but differentially associated with distinct patient and caregiver variables. Patients whose caregivers reported higher baseline levels of caregiver reward were more likely to have lower depression scores at follow-up. Discussion: Given that different aspects of patients and caregivers influence reward and burden, assessing caregivers for both burden and reward may better target caregiver interventions at the individual and family levels, particularly for older adult depression.