Proactive and integrated primary care for frail older people: design and methodological challenges of the Utrecht primary care PROactive frailty intervention trial (U-PROFIT)

Community-based complex interventions to sustain independence in older people, stratified by frailty: a systematic review and network meta-analysis

Background

Sustaining independence is important for older people, but there is insufficient guidance about which community health and care services to implement.

Objectives

To synthesise evidence of the effectiveness of community services to sustain independence for older people grouped according to their intervention components, and to examine if frailty moderates the effect.

Review design

Systematic review and network meta-analysis.

Eligibility criteria

Studies: Randomised controlled trials or cluster-randomised controlled trials. Participants: Older people (mean age 65+) living at home. Interventions: community-based complex interventions for sustaining independence. Comparators: usual care, placebo or another complex intervention.

Main outcomes

Living at home, instrumental activities of daily living, personal activities of daily living, care-home placement and service/economic outcomes at 1 year.

Data sources

We searched MEDLINE (1946-), Embase (1947-), CINAHL (1972-), PsycINFO (1806-), CENTRAL and trial registries from inception to August 2021, without restrictions, and scanned reference lists.

Review methods

Interventions were coded, summarised and grouped. Study populations were classified by frailty. A random-effects network meta-analysis was used. We assessed trial-result risk of bias (Cochrane RoB 2), network meta-analysis inconsistency and certainty of evidence (Grading of Recommendations Assessment, Development and Evaluation for network meta-analysis).

Results

We included 129 studies (74,946 participants). Nineteen intervention components, including 'multifactorial-action' (multidomain assessment and management/individualised care planning), were identified in 63 combinations. The following results were of low certainty unless otherwise stated. For living at home, compared to no intervention/placebo, evidence favoured: multifactorial-action and review with medication-review (odds ratio 1.22, 95% confidence interval 0.93 to 1.59; moderate certainty) multifactorial-action with medication-review (odds ratio 2.55, 95% confidence interval 0.61 to 10.60) cognitive training, medication-review, nutrition and exercise (odds ratio 1.93, 95% confidence interval 0.79 to 4.77) and activities of daily living training, nutrition and exercise (odds ratio 1.79, 95% confidence interval 0.67 to 4.76). Four intervention combinations may reduce living at home. For instrumental activities of daily living, evidence favoured multifactorial-action and review with medication-review (standardised mean difference 0.11, 95% confidence interval 0.00 to 0.21; moderate certainty). Two interventions may reduce instrumental activities of daily living. For personal activities of daily living, evidence favoured exercise, multifactorial-action and review with medication-review and self-management (standardised mean difference 0.16, 95% confidence interval -0.51 to 0.82). For homecare recipients, evidence favoured the addition of multifactorial-action and review with medication-review (standardised mean difference 0.60, 95% confidence interval 0.32 to 0.88). Care-home placement and service/economic findings were inconclusive.

Limitations

High risk of bias in most results and imprecise estimates meant that most evidence was low or very low certainty. Few studies contributed to each comparison, impeding evaluation of inconsistency and frailty. Studies were diverse; findings may not apply to all contexts.

Conclusions

Findings for the many intervention combinations evaluated were largely small and uncertain. However, the combinations most likely to sustain independence include multifactorial-action, medication-review and ongoing review of patients. Some combinations may reduce independence.

Future work

Further research is required to explore mechanisms of action and interaction with context. Different methods for evidence synthesis may illuminate further.

Study registration

This study is registered as PROSPERO CRD42019162195.

Funding

This award was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme (NIHR award ref: NIHR128862) and is published in full in Health Technology Assessment; Vol. 28, No. 48. See the NIHR Funding and Awards website for further award information.

Potential Factors Influencing Adoption of a Primary Care Pathway to Prevent Functional Decline in Older Adults

Introduction

To help recognize and care for community-dwelling older adults living with frailty, we plan to implement a primary care pathway consisting of frailty screening, shared decision-making to select a preventive intervention, and facilitated referral to community-based services. In this study, we examined the potential factors influencing adoption of this pathway.

Methods

In this qualitative, descriptive study, we conducted semi-structured interviews and focus groups with patients aged 70 years and older, health professionals (HPs), and managers from four primary care practices in the province of Quebec, representatives of community-based services and geriatric clinics located near the practices. Two researchers conducted an inductive/deductive thematic analysis, by first drawing on the Consolidated Framework for Implementation Research and then adding emergent subthemes.

Results

We recruited 28 patients, 29 HPs, and 8 managers from four primary care practices, 16 representatives from community-based services, and 10 representatives from geriatric clinics. Participants identified several factors that could influence adoption of the pathway: the availability of electronic and printed versions of the decision aids; the complexity of including a screening form in the electronic health record; public policies that limit the capacity of community-based services; HPs' positive attitudes toward shared decision-making and their work overload; and lack of funding.

Conclusions

These findings will inform the implementation of the care pathway, so that it meets the needs of key stakeholders and can be scaled up.

Using Design Thinking for Co-Creating an Integrated Care Pathway Including Hospital at Home for Older Adults with an Acute Moderate-Severe Respiratory Infection in the Netherlands

Introduction

Acute respiratory infections are common in frail, community-dwelling older people and are accompanied by considerable diagnostic and prognostic uncertainties. Inadequately coordinated care is associated with unnecessary hospital referral and admission with potential iatrogenic harm. Therefore, we aimed to co-create a regional integrated care pathway (ICP), including a hospital at home journey.

Developing the ICP

Tasked with using design thinking methodology, stakeholders from regional healthcare facilities, together with patient representatives, were assigned to different focus groups based on their expertise. The focus of each session was to co-create ideal patient journeys suitable for embedding in the ICP.

Results

Based on these sessions, a regional cross-domain ICP was developed that comprises three patient journeys. The first journey included a hospital at home track, the second a tailored visit, with priority assessment, to regional emergency departments, and the third concerned referral to readily available nursing home 'recovery-beds' under the supervision of an elderly care medicine specialist.

Conclusion

Using design thinking and involving end-users during the whole process, we created an ICP for community-dwelling frail older people with moderate-severe acute respiratory infections. This resulted in three realistic patient journeys, including a hospital at home track, which will be implemented and evaluated in the near future.

Factors associated with health-related quality of life among home-dwelling older adults aged 75 or older in Switzerland: a cross-sectional study

BACKGROUND

HRQoL is an indicator of individuals' perception of their overall health, including social and environmental aspects. As a multidimensional concept, HRQoL can be influenced by a multitude of factors. Studies of HRQoL and factors associated with it among home-dwelling older adults have often been limited to inpatient settings or to a sub-population with a chronic disease. Studying HRQoL and its correlating factors among this population, by providing an ecological lens on factors beyond the individual level, can provide a better understanding of the construct and the role of the environment on how they perceive their HRQoL. Thus, we aimed to assess the HRQoL and investigate the correlates of HRQOL among home-dwelling older adults, guided by the levels of the ecological model.

METHODS

This is a cross-sectional population survey conducted in 2019 in Canton Basel-Landschaft, in northwestern Switzerland, and includes a sample of 8786 home-dwelling older adults aged 75 and above. We assessed HRQoL by using the EQ-index and the EQ-VAS. The influence of independent variables at the macro, meso and micro level on HRQoL was tested using Tobit multiple linear regression modelling.

RESULTS

We found that having a better socio-economic status as denoted by higher income, having supplementary insurance and a higher level of education were all associated with a better HRQoL among home-dwelling older adults. Furthermore, being engaged in social activities was also related to an improved HRQoL. On the other hand, older age, female gender, presence of multimorbidity and polypharmacy as well as social isolation and loneliness were found to all have a negative impact on HRQoL.

CONCLUSIONS

Understanding factors related to HRQoL by using an ecological lens can help identify factors beyond the individual level that impact the HRQoL of home-dwelling older adults. Our study emphasises the importance of social determinants of health and potential disparities that exists, encouraging policymakers to focus on policies to reduce socio-economic disparities using a life-course approach, which consequently could also impact HRQoL in later stages of life.

Impact of organizational context on patient outcomes in a proactive primary care program:a longitudinal observational study

BACKGROUND

The effectiveness of health care interventions is co-determined by contextual factors. Unknown is the extent of this impact on patient outcomes. Therefore, the aim of this study is to explore which characteristics of general practices are associated with patient outcomes in a proactive primary care program, the U-PROFIT 2.0.

METHODS

A longitudinal observational study was conducted from January 2016 till October 2017. Two questionnaires were send out, one to collect characteristics of general practices such as practice neighbourhood socio-economic status, general practice versus healthcare centre (involving multiple primary care professionals), and professional- frail older patient ratio per practice of general practitioners and practice nurses. Regarding delivering the program, the practice or district nurse who delivered the program, number of years since the start of the implementation, and choice of age threshold for frailty screening were collected. Patient outcomes collected by the second questionnaire and send to frail patients were daily functioning, hospital admissions, emergency department visits, and general practice out-of-hours consultations. Linear and generalized linear mixed models were used.

RESULTS

A total of 827 frail older people were included at baseline. Delivery of the program by a district nurse compared to a practice nurse was significantly associated with a decrease in daily functioning on patient-level (β = 2.19; P = < 0.001). Duration since implementation of 3 years compared to 9 years was significantly associated with less out-of-hours consultations to a general practice (OR 0.11; P = 0.001). Applying frailty screening from the age of 75 compared to those targeted from the age of 60 showed a significant increase in emergency visits (OR 5.26; P = 0.03).

CONCLUSION

Three associations regarding the organizational context 1) the nurse who delivered the program, 2) the number of years the program was implemented and 3) the age threshold for defining a frail patient are significant and clinically relevant for frail patients that receive a proactive primary care program. In general, contextual factors need more attention when implementing complex primary care programs which can result in better balanced choices to enhance effective proactive care for older people living in the community.

The INSPIRE Population Survey: development, dissemination and respondent characteristics

BACKGROUND

Most older adults prefer to continue living at home despite increasing care needs and demand for services. To aid in maintaining independence, integrated care models for community-dwelling older people are promoted as the most cost-effective approach. The implementation of such care models is challenging and often the end-users are not involved or their needs are not considered. We conducted a population survey in order to understand the needs and preferences of home-dwelling older adults living in Canton Basel-Landschaft, Switzerland. The aims of this paper are to chronicle the development of the INSPIRE Population Survey, outline its variables and measurements, describe the marketing strategy utilized for survey dissemination and report on the response rate and respondent characteristics.

METHODS

The INSPIRE Population Survey, conducted between March and August 2019, is a cross-sectional survey of older adults aged 75 and older living at home in Canton Basel-Landschaft. The questionnaire was developed by expert input and stakeholder involvement. Its readability and acceptability were pilot-tested with older people. To ensure the likelihood of a high and representative response rate, a meticulous step-by-step marketing strategy was developed prior to the dissemination of the questionnaire.

RESULTS

The overall response rate was 30.7% (n = 8,846), with variations between 20.6 and 34.5% across the different care regions in the canton. A generally higher response rate was found in the care regions with a higher density and which bordered the urban city of Basel. We received support from local stakeholders, policy makers and media through using a broad combination of marketing channels and targeting our community partners who have a strong relationship with our target audience.

CONCLUSIONS

Although recruiting older adults in research is challenging, our study shows that a high response rate can be achieved by developing the survey through expert input and by involving all important stakeholders, including older adults, throughout the entire process.

Multicomponent Intervention and Long-Term Disability in Older Adults: A Nonrandomized Prospective Study

BACKGROUND/OBJECTIVES

To evaluate the long-term association between a multicomponent intervention program and disability in socioeconomically vulnerable older adults.

DESIGN

This was a nonrandomized prospective intervention trial.

SETTING

The setting was a community.

PARTICIPANTS

Participants included older Koreans living alone or receiving government assistance from a low-income program.

INTERVENTION

The intervention was a 24-week multicomponent program compromising group exercise, nutritional supplementation, management of depression, deprescribing, and home hazard reduction (n = 187) versus usual care (n = 196).

MEASUREMENTS

The number of dependencies in 17 basic and instrumental activities of daily living was measured every 3 months for 30 months (range: 0-17; greater values indicated worse disability). Inverse probability weighting Poisson regression was used to model the number of dependencies to adjust for confounding bias and higher dropout rates of those with greater disability.

RESULTS

The study population had a mean age of 76 years, and 26% were men. During the 30-month follow up, 17 died (n = 8, intervention; n = 9, control), 62 (n = 16, intervention; n = 46, control) were institutionalized or received nursing home care, and 34 (n = 15, intervention; n = 19, control) were lost to follow up. After inverse probability weighting, the mean number of dependencies at baseline was 1.21 and 1.29 for the intervention group and the control group, respectively (P = .80). The intervention group had fewer dependencies than the control group, but the difference was attenuated over time: 1.08 versus 1.60 at 6 months (P = .04), 1.29 versus 1.87 at 12 months (P = .03), 1.62 versus 2.17 at 18 months (P = .06), 2.08 versus 2.51 at 24 months (P = .18), and 2.73 versus 2.90 at 30 months (P = .67).

CONCLUSION

A 24-week multicomponent intervention was associated with a slower progression of disability; however, the diminishing association from 24 months and beyond suggests that reassessment and intervention may be necessary. Due to a lack of randomization, our findings should be interpreted with caution.

Measuring daily functioning in older persons using a frailty index: a cohort study based on routine primary care data

BACKGROUND

Electronic health records (EHRs) are increasingly used for research; however, multicomponent outcome measures such as daily functioning cannot yet be readily extracted.

AIM

To evaluate whether an electronic frailty index based on routine primary care data can be used as a measure for daily functioning in research with community-dwelling older persons (aged ≥75 years).

DESIGN AND SETTING

Cohort study among participants of the Integrated Systemic Care for Older People (ISCOPE) trial (11 476 eligible; 7285 in observational cohort; 3141 in trial; over-representation of frail people).

METHOD

At baseline (T0) and after 12 months (T12), daily functioning was measured with the Groningen Activities Restriction Scale (GARS, range 18-72). Electronic frailty index scores (range 0-1) at T0 and T12 were computed from the EHRs. The electronic frailty index (electronic Frailty Index - Utrecht) was tested for responsiveness and compared with the GARS as a gold standard for daily functioning.

RESULTS

In total, 1390 participants with complete EHR and follow-up data were selected (31.4% male; median age = 81 years, interquartile range = 78-85). The electronic frailty index increased with age, was higher for females, and lower for participants living with a partner. It was responsive after an acute major medical event; however, the correlation between the electronic frailty index and GARS at T0 and over time was limited.

CONCLUSION

Because the electronic frailty index does not reflect daily functioning, further research on new methods to measure daily functioning with routine care data (for example, other proxies) is needed before EHRs can be a useful data source for research with older persons.

Addressing safety risks in integrated care programs for older people living at home: a scoping review

BACKGROUND

Many older people live at home, often with complex and chronic health and social care needs. Integrated care programs are increasingly being implemented as a way to better address these needs. To support older people living at home, it is also essential to maintain their safety. Integrated care programs have the potential to address a wide range of risks and problems that could undermine older people's ability to live independently at home. The aim of this scoping review is to provide insight into how integrated care programs address safety risks faced by older people living at home - an area that is rather underexplored.

METHODS

Safety was conceptualised as preventing or reducing the risk of problems, associated with individual functioning and behaviour, social and physical environments, and health and social care management, which could undermine older people's ability to live independently at home. For this scoping review a systematic literature search was performed to identify papers describing integrated care programs where at least one intervention component addressed safety risks. Data were extracted on the programs' characteristics, safety risks addressed, and the activities and interventions used to address them.

RESULTS

None of the 11 programs included in this review explicitly mentioned safety in their goals. Nevertheless, following the principles of our conceptual framework, the programs appeared to address risks in multiple domains. Most attention was paid to risks related to older people's functioning, behaviour, and the health and social care they receive. Risks related to people's physical and social environments received less attention.

CONCLUSION

Even though prevention of safety risks is not an explicit goal of integrated care programs, the programs address a wide range of risks on multiple domains. The need to address social and environmental risks is becoming increasingly important given the growing number of people receiving care and support at home. Prioritising a multidimensional approach to safety in integrated care programs could enhance the ability of health and social care systems to support older people to live safely at home.

Pre-Frail Multicomponent Training Intervention project for complexity of biological signals, functional capacity and cognition improvement in pre-frail older adults: A blinded randomized controlled study protocol

AIM

Frailty syndrome is related to decreased physiological complexity, functional capacity and cognition. Physical exercise has been suggested to slow down and reverse this syndrome. However, evidence of its effectiveness is not as straightforward as conventionally admitted, as there is a lack of trials with rigorous methodology. The purpose of this study was to describe the Pre-Frail Multicomponent Training Intervention protocol.

METHODS

Cardiovascular, motor control and neuromuscular systems of pre-frail older adults will be assessed by measuring the complexity of the output of these systems. Functional capacity and cognition will be assessed by specific tools. A 16-week training protocol will be carried out on three alternate days, with 60-min sessions, and combining aerobic, muscle strength, flexibility and balance exercises. The objective of this intervention is to improve the cardiovascular, motor control and neuromuscular systems, as well as functional capacity and cognition of pre-frail older adults. The assessment of these systems will be carried out using gold standard devices.

RESULTS

The results of the present study might allow clinical and functional support for the evaluation of the variables analyzed.

CONCLUSION

This protocol is easily reproducible and requires low-cost materials, thus the Pre-Frail Multicomponent Training Intervention could be a therapeutic strategy for pre-frail older adults. Geriatr Gerontol Int 2019; 19: 684-689.

The Asia-Pacific Clinical Practice Guidelines for the Management of Frailty

OBJECTIVE

To develop Clinical Practice Guidelines for the screening, assessment and management of the geriatric condition of frailty.

METHODS

An adapted Grading of Recommendations, Assessment, Development, and Evaluation approach was used to develop the guidelines. This process involved detailed evaluation of the current scientific evidence paired with expert panel interpretation. Three categories of Clinical Practice Guidelines recommendations were developed: strong, conditional, and no recommendation.

RECOMMENDATIONS

Strong recommendations were (1) use a validated measurement tool to identify frailty; (2) prescribe physical activity with a resistance training component; and (3) address polypharmacy by reducing or deprescribing any inappropriate/superfluous medications. Conditional recommendations were (1) screen for, and address modifiable causes of fatigue; (2) for persons exhibiting unintentional weight loss, screen for reversible causes and consider food fortification and protein/caloric supplementation; and (3) prescribe vitamin D for individuals deficient in vitamin D. No recommendation was given regarding the provision of a patient support and education plan.

CONCLUSIONS

The recommendations provided herein are intended for use by healthcare providers in their management of older adults with frailty in the Asia Pacific region. It is proposed that regional guideline support committees be formed to help provide regular updates to these evidence-based guidelines.

Cost-Effectiveness of a Proactive Primary Care Program for Frail Older People: A Cluster-Randomized Controlled Trial

BACKGROUND

A proactive integrated approach has shown to preserve daily functioning among older people in the community. The aim is to determine the cost-effectiveness of a proactive integrated primary care program.

METHODS

Economic evaluation embedded in a single-blind, 3-armed, cluster-randomized controlled trial with 12 months' follow-up in 39 general practices in the Netherlands. General practices were randomized to one of 3 trial arms: (1) an electronic frailty screening instrument using routine medical record data followed by standard general practitioner (GP) care; (2) this screening instrument followed by a nurse-led care program; or (3) usual care. Health resource utilization data were collected using electronic medical records and questionnaires. Associated costs were calculated. A cost-effectiveness analysis from a societal perspective was undertaken. The incremental cost per quality-adjusted life-year was calculated comparing proactive screening arm with usual care, and screening plus nurse-led care arm with usual care, as well as the screening arm with screening plus nurse-led care arm.

RESULTS

Out of 7638 potential participants, 3092 (40.5%) older adults participated. Whereas effect differences were minor, the total costs per patient were lower in both intervention groups compared with usual care. The probability of cost-effectiveness at €20,000 per QALY threshold was 87% and 91% for screening plus GP care versus usual care and for screening plus nurse-led care compared to usual care, respectively. For screening plus nurse-led care vs screening plus standard GP care, the probability was 55%.

CONCLUSION

A proactive screening intervention has a high probability of being cost-effective compared to usual care. The combined intervention showed less value for money.

Patient Characteristics Associated With a Successful Response to Nurse-Led Care Programs Targeting the Oldest-Old: A Comparison of Two RCTs

BACKGROUND

To improve the effectiveness of community-based care programs, especially those targeting the oldest-old population (80+), data are needed that elucidate those factors associated with a successful response to the intervention. Two comparable nurse-led care programs have been evaluated in two large randomized controlled trials (RCTs), one in Switzerland and one in the Netherlands.

AIMS

To identify common patient characteristics that are related to a successful response to proactive nurse-led care, we explored if and to what extent, identical factors were present in both study populations.

METHODS

A secondary data analysis using trial data from the intervention group of both RCTs was conducted. The study sample consisted 461 older adults, 230 from the U-PROFIT trial (the Netherlands) and 231 from the HPC trial (Switzerland). The mean age of the total sample was 85.1 years (SD 3.7). The UPROFIT intervention, delivered by registered nurses, included a frailty assessment and a comprehensive geriatric assessment (CGA) at home followed by an individualized evidence-based care plan, care coordination, and follow-up. The HCP intervention was delivered by advanced practice nurses consisting of four home visits and three phone calls, and was guided by the principles of health promotion, empowerment, partnership, and family-centeredness. A successful response was defined as "stable" or "no decline" in daily functioning at follow-up. Daily functioning was measured with 13 items of activities of daily living and instrumental activities of daily living. Multivariate logistic regression models were applied to calculate the association between individual characteristics and a successful response.

RESULTS

Almost half of the participants in the U-PROFIT trial (50.9%), and two-thirds (65.7%) of the participants in the HCP trial had a successful response at follow-up. Fewer comorbidities and a better self-rated health had the strongest predictive value for benefiting from the intervention (OR = 0.83 [95% CI 0.66-1.03], and OR = 1.5 [95% CI 0.92-2.45]), respectively.

LINKING EVIDENCE TO ACTION

Two large RCTs demonstrated that a preventive nurse-led care program can preserve daily functioning in the oldest-old population. Older people with few comorbidities and higher self-rated health had a higher likelihood of a positive outcome. Unraveling the characteristics associated with a successful response provides important information for further refining and targeting an intervention to obtain maximum effectiveness. More effort is needed to modify interventions for the oldest-old with multiple morbidities and low levels of education.

Disability in the Individual ADL, IADL, and Mobility among Older Adults: A Prospective Cohort Study

OBJECTIVES

To examine the risk of disability in 15 individual ADL, IADL, and mobility in older adults by age; and to assess the association of multimorbidity, gender, and education with disability.

DESIGN AND SETTING

A prospective cohort study. The sample included 805 community-dwelling older people aged 60+ living in the Netherlands.

MEASUREMENTS

Disability was assessed using the Katz-15 Index of Independence in Basic Activities of Daily Living (ADL), Instrumental Activities of Daily Living (IADL) and one mobility item. Disability in any of these activities was defined as the inability to perform the activity without assistance. The risk of disability by age for each individual ADL, IADL, and for mobility was assessed using Generalized mixed models.

RESULTS

Disability in activities as household tasks, traveling, shopping, and continence had the highest risk and increased rapidly with age. The risk traveling disability among people aged 65 with two comorbidities increase from 9% to 37% at age 85. Disability in using the telephone, managing medications, finances, transferring, and toileting, had a very low risk and hardly increased with age. Compared to those without chronic conditions, those with ≥ 3 chronic conditions had a 3 to 5 times higher risk of developing disability. Males had a higher risk of disability in managing medication (P=0.005), and preparing meals (P=0.019), whereas females had a higher risk of disability with traveling (P=0.001). No association between education and disability on the individual ADL, IADL, and mobility was observed.

CONCLUSIONS

Older adults were mostly disabled in physical related activities, whereas disability in more cognitive related activities was less often experienced. The impact of multimorbidity on disability in each activity was substantial, while education was not.

Supplementation of Mussel Peptides Reduces aging Phenotype, Lipid Deposition and Oxidative Stress in D-Galactose-Induce Aging Mice

OBJECTIVES

Aging is associated with glucose and lipid metabolism disorder. We aimed to examine the effects of mussel peptides on protecting against aging by regulating glucose and lipid metabolism.

METHODS

For the aging model, d-galactose (200 mg/kg) was administered subcutaneously to 8-month-old mice for 8 weeks. Mussel peptides (1,000 mg/kg) were simultaneously administered by intragastric gavage. The glucose and lipid metabolism profiles, aging phenotype and peroxisome proliferator-activated receptors (PPARs) expression in the liver and adipose tissue of ICR mice were measured.

RESULTS

D-galactose-treated mice showed pronounced fat deposition and impaired glucose and lipid homeostasis, along with increased oxidative damage and aging. Mussel peptides improved metabolic status by reducing serum glucose and triglyceride levels, insulin resistance and hepatic free fatty acid, as well as enhancing serum high-density lipoprotein (HDL) level and hepatic glycogen content, accompanied with amelioration of aging phenotype and fat deposition. Moreover, mussel peptides ameliorated oxidative stress in aged liver tissues and promoted expression of peroxisome proliferator activated receptors alpha (PPARα) and gamma (PPARγ) in liver and adipose tissues.

CONCLUSIONS

These results indicate that mussel peptides protect against lipid metabolic disorders associated with aging via maintaining oxidative stress homeostasis and elevated expression levels of PPARs.

Treatment Fidelity of an Evidence-Based Nurse-Led Intervention in a Proactive Primary Care Program for Older People

BACKGROUND

In a large randomized trial, Utrecht PROactive Frailty Intervention Trial (U-PROFIT), we evaluated the effectiveness of an integrated program on the preservation of daily functioning in older people in primary care that consisted of a frailty identification tool and a multicomponent nurse-led care program. Examination of treatment fidelity is critical to successful translation of evidence-based interventions into practice.

AIMS

To assess treatment delivery, dose and content of nursing care delivered within the nurse-led care program, and to explore if the delivery may have influenced the trial results.

METHODS

A mixed-methods study was conducted. Type and dose of nursing care were collected during the trial. Shortly after the trial, a focus group with nurses was conducted to explore reasons for the observed differences between the type and dose of nursing care delivered.

RESULTS

A total of 835 older persons were included in the nurse-led care program. The mean age was 75 years, 64% were female and 53.5% were living alone. The most frequent self-reported conditions were loneliness (60.8%) and cognitive problems (59.4%). One-third of the patients with a geriatric condition received an additional assessment (e.g., Mini-Mental State Examination), and the majority of these patients received at least one nurse intervention (>85%). Most nursing care was delivered to patients at risk of falling and to those with urinary incontinence. Patients with nutrition problems seldom received nursing interventions. The nurses explained that differences in type and dose were influenced by the preference of the patient, the type of geriatric problem, and the time required to apply a nurse intervention.

LINKING EVIDENCE TO ACTION

All intervention components were delivered; however, differences were observed in the type and dose of nursing care delivered across geriatric conditions. The findings better explain the treatment fidelity and suggest that there is room for improvement that may result in more beneficial patient outcomes.

Do GPs know their patients with cancer? Assessing the quality of cancer registration in Dutch primary care: a cross-sectional validation study

OBJECTIVES

To assess the quality of cancer registry in primary care.

DESIGN AND SETTING

A cross-sectional validation study using linked data from primary care electronic health records (EHRs) and the Netherlands Cancer Registry (NCR).

POPULATION

290 000 patients, registered with 120 general practitioners (GPs), from 50 practice centres in the Utrecht area, the Netherlands, in January 2013.

INTERVENTION

Linking the EHRs of all patients in the Julius General Practitioners' Network database at an individual patient level to the full NCR (∼1.7 million tumours between 1989 and 2011), to determine the proportion of matching cancer diagnoses. Full-text EHR extraction and manual analysis for non-matching diagnoses.

MAIN OUTCOME MEASURES

Proportions of matching and non-matching breast, lung, colorectal and prostate cancer diagnoses between 2007 and 2011, stratified by age category, cancer type and EHR system. Differences in year of diagnosis between the EHR and the NCR. Reasons for non-matching diagnoses.

RESULTS

In the Primary Care EHR, 60.6% of cancer cases were registered and coded in accordance with the NCR. Of the EHR diagnoses, 48.9% were potentially false positive (not registered in the NCR). Results differed between EHR systems but not between age categories or cancer types. The year of diagnosis corresponded in 80.6% of matching coded diagnoses. Adding full-text EHR analysis improved results substantially. A national disease registry (the NCR) proved incomplete.

CONCLUSIONS

Even though GPs do know their patients with cancer, only 60.6% are coded in concordance with the NCR. Reusers of coded EHR data should be aware that 40% of cases can be missed, and almost half can be false positive. The type of EHR system influences registration quality. If full-text manual EHR analysis is used, only 10% of cases will be missed and 20% of cases found will be wrong. EHR data should only be reused with care.

How effective is integrated care for community-dwelling frail older people? The case of the Netherlands

Integrated care programs have been developed to enhance the quality care for older adults in primary care. These programs usually consist of a multidisciplinary approach, with personalised care based on comprehensive geriatric assessments. However, there is limited evidence for the effectiveness of these programs in frail older people. In this article, we review the results of three recent intervention studies carried out as part of the Dutch National Care for the Elderly Programme. The results illustrate how difficult it is to improve outcomes in community-dwelling frail older adults by means of integrated care. Furthermore, we discuss the implications of these studies for future research into frailty interventions.

Effectiveness of a Proactive Primary Care Program on Preserving Daily Functioning of Older People: A Cluster Randomized Controlled Trial

OBJECTIVES

To determine the effectiveness of a proactive primary care program on the daily functioning of older people in primary care.

DESIGN

Single-blind, three-arm, cluster-randomized controlled trial with 1-year follow-up.

SETTING

Primary care setting, 39 general practices in the Netherlands.

PARTICIPANTS

Community-dwelling people aged 60 and older (N = 3,092).

INTERVENTIONS

A frailty screening intervention using routine electronic medical record data to identify older people at risk of adverse events followed by usual care from a general practitioner; after the screening intervention, a nurse-led care program consisting of a comprehensive geriatric assessment, evidence-based care planning, care coordination, and follow-up; usual care.

MEASUREMENTS

Primary outcome was daily functioning measured using the Katz-15 (6 activities of daily living (ADLs), 8 instrumental activities of daily living (IADLs), one mobility item (range 0-15)); higher scores indicate greater dependence. Secondary outcomes included quality of life, primary care consultations, hospital admissions, emergency department visits, nursing home admissions, and mortality.

RESULTS

The participants in both intervention arms had less decline in daily functioning than those in the usual care arm at 12 months (mean Katz-15 score: screening arm, 1.87, 95% confidence interval (CI) = 1.77-1.97; screening and nurse-led care arm, 1.88, 95% CI = 1.80-1.96; control group, 2.03, 95% CI = 1.92-2.13; P = .03). No differences in quality of life were observed.

CONCLUSION

Participants in both intervention groups had less decline than those in the control group at 1-year follow-up. Despite the statistically significant effect, the clinical relevance is uncertain at this point because of the small differences. Greater customizing of the intervention combined with prolonged follow-up may lead to more-robust results.

Validity and reliability of the Katz-15 scale to measure unfavorable health outcomes in community-dwelling older people

OBJECTIVES

To predict the risk of future unfavourable health outcomes in older people it is common to assess the level of both basic and instrumental activities of daily living. To accomplish this, the commonly used Katz-6 and the Lawton IADL questionnaires can be combined to form the 'Modified Katz ADL' scale, also known as the Katz-15 scale. So far, the validity and reliability of the Katz-15 scale is unknown. The objective of the current study is to investigate how well the Katz-15 is able to predict future unfavorable health outcomes and how this is related to the existing Katz-6 scale.

DESIGN

We performed a follow-up study using data from a group of 60 year and older participants from a large Dutch clinical trial.

PARTICIPANTS

We included 2321 participants in the analysis. The average age of the study population was 74 years and 44% was male.

MEASUREMENTS

We studied the relation between the Katz-15 scale and a number of unfavourable health outcomes, such as hospitalization, admission to a nursing home, admission to a home for the aged and death within one year of follow-up.

RESULTS

We found the Katz-15 to be both internally consistent and strongly associated with quality of life measures. We observed moderate to strong associations between the Katz-15 and the unfavourable health outcomes All associations studied were stronger for the Katz-15 scale as compared to the Katz-6 scale.

CONCLUSION

The results of our study indicate that the Katz-15 scale is able to reliably and validly predict future unfavorable health outcomes. This makes the scale a valuable measure in determining both basic and instrumental activities of daily living.

Factors associated with geriatric syndromes in older homeless adults

Although older homeless adults have high rates of geriatric syndromes, risk factors for these syndromes are not known. We used multivariable regression models to estimate the association of subject characteristics with the total number of geriatric syndromes in 250 homeless adults aged 50 years and older. Geriatric syndromes included falls, cognitive impairment, frailty, major depression, sensory impairment, and urinary incontinence. A higher total number of geriatric syndromes was associated with having less than a high school education, medical comorbidities (diabetes and arthritis), alcohol and drug use problems, and difficulty performing one or more activities of daily living. Clinicians who care for older homeless patients with these characteristics should consider screening them for geriatric syndromes. Moreover, this study identifies potentially modifiable risk factors associated with the total number of geriatric syndromes in older homeless adults. This knowledge may provide targets for clinical interventions to improve the health of older homeless patients.

Identifying frailty: do the Frailty Index and Groningen Frailty Indicator cover different clinical perspectives? a cross-sectional study

Background

Early identification of frailty is important for proactive primary care. Currently, however, there is no consensus on which measure to use. Therefore, we examined whether a Frailty Index (FI), based on ICPC-coded primary care data, and the Groningen Frailty Indicator (GFI) questionnaire identify the same older people as frail.

Methods

We conducted a cross-sectional, observational study of 1,580 patients aged ≥ 60 years in a Dutch primary care center. Patients received a GFI questionnaire and were surveyed on their baseline characteristics. Frailty-screening software calculated their FI score. The GFI and FI scores were compared as continuous and dichotomised measures.

Results

FI data were available for 1549 patients (98%). 663 patients (42%) returned their GFI questionnaire. Complete GFI and FI scores were available for 638 patients (40.4%), mean age 73.4 years, 52.8% female. There was a positive correlation between the GFI and the FI (Pearson’s correlation coefficient 0.544). Using dichotomised scores, 84.3% of patients with a low FI score also had a low GFI score. In patients with a high FI score, 55.1% also had a high GFI score. A continuous FI score accurately predicted a dichotomised GFI score (AUC 0.78, 95% CI 0.74 to 0.82). Being widowed or divorced was an independent predictor of both a high GFI score in patients with a low FI score, and a high FI score in patients with a low GFI score.

Conclusions

The FI and the GFI moderately overlap in identifying frailty in community-dwelling older patients. To provide optimal proactive primary care, we suggest an initial FI screening in routine healthcare data, followed by a GFI questionnaire for patients with a high FI score or otherwise at high risk as the preferred two-step frailty screening process in primary care.

Integrated care for frail elderly compared to usual care: a study protocol of a quasi-experiment on the effects on the frail elderly, their caregivers, health professionals and health care costs

BACKGROUND

Frail elderly persons living at home are at risk for mental, psychological, and physical deterioration. These problems often remain undetected. If care is given, it lacks the quality and continuity required for their multiple and changing problems. The aim of this project is to improve the quality and efficacy of care given to frail elderly living independently by implementing and evaluating a preventive integrated care model for the frail elderly.

METHODS/DESIGN

The design is quasi-experimental. Effects will be measured by conducting a before and after study with control group. The experimental group will consist of 220 elderly of 8 GPs (General Practitioners) who will provide care according to the integrated model (The Walcheren Integrated Care Model). The control group will consist of 220 elderly of 6 GPs who will give care as usual. The study will include an evaluation of process and outcome measures for the frail elderly, their caregivers and health professionals as well as a cost-effectiveness analysis. A concurrent mixed methods design will be used. The study population will consist of elderly 75 years or older who live independently and score a 4 or higher on the Groningen Frailty Indicator, their caregivers and health professionals. Data will be collected prospectively at three points in time: T0, T1 (3 months after inclusion), and T2 (12 months after inclusion). Similarities between the two groups and changes over time will be assessed with t-tests and chi-square tests. For each measure regression analyses will be performed with the T2-score as the dependent variable and the T0-score, the research group and demographic variables as independent variables.

DISCUSSION

A potential obstacle for this study will be the willingness of the elderly and their caregivers to participate. To increase willingness, the request to participate will be sent via the elders' own GP. Interviewers will be from their local region and gifts will be given. A successful implementation of the integrated model is also necessary. The involved parties are members of a steering group and have contractually committed themselves to the project.

TRIAL REGISTRATION

Current Controlled Trials ISRCTN05748494.

[Proactive and structured care for the elderly in primary care]

BACKGROUND

Currently, primary care for the older, vulnerable patient is reactive, fragmented and does not meet patients needs. Given the expected increase of home-dwelling frail elderly people a transition is needed to proactive and integrated care.

METHODS

In the described study, we explore two innovative interventions in primary care. First we describe a newly developed screening and monitoring program for frail elderly patients based on routine care information in general practice. Second, we describe a multidisciplinary intervention program by trained nurses for frail elderly patients in general practice. The effectiveness of the interventions is examined in a three-armed, cluster randomized trial, taking place in 58 primary care practices in Utrecht, the Bilt and Maarsenbroek.

RESULTS

Three thousand eight patients are included. Primary outcome measure is the impact of the interventions on the daily activities, measured with the Katz questionnaire. Secondary outcomes measures are the quality of life, mortality, recording in a care or nursing home, visit to an emergency room or outpatient unit, recording in the hospital and volunteer caregivers tax.

Development of a proactive care program (U-CARE) to preserve physical functioning of frail older people in primary care

PURPOSE

Care for older patients in primary care is currently reactive, fragmented, and time consuming. An innovative structured and proactive primary care program (U-CARE) has been developed to preserve physical functioning and enhance quality of life of frail older people. This study describes in detail the development process of the U-CARE program to allow its replication.

METHODS

The framework of the Medical Research Council (MRC) for the development and evaluation of complex interventions was used as a theoretical guide for the design of the U-CARE program. An extended stepwise multimethod procedure was used to develop U-CARE. A team of researchers, general practitioners, registered practice nurses, experts, and an independent panel of older persons was involved in the development process to increase its feasibility in clinical practice. A systematic review of the literature and of relevant guidelines, combined with clinical practice experience and expert opinion, was used for the development of the intervention.

FINDINGS

Based on predefined potentially effective guiding components, the U-CARE program comprises three steps: a frailty assessment, a comprehensive geriatric assessment at home followed by a tailor-made care plan, and multiple follow-up visits. Evidence-based care plans were developed for 11 geriatric conditions. The feasibility in clinical practice was tested and approved by experienced registered practice nurses.

CONCLUSIONS

Using the MRC Framework, a detailed description of the development process of the innovative U-CARE program is provided, which is often missing in reports of complex intervention trials. Based on our feasibility-pilot study, the general practitioners and the registered practice nurses indicated that the U-CARE intervention is feasible in clinical practice.

CLINICAL RELEVANCES

The U-CARE program consists of promising components and has the potential to improve the care of older patients.