The longitudinal associations between ambient air pollution exposure and dementia in the UK: results from the cognitive function and ageing study II and Wales.

BACKGROUND: Air pollution has been recognised as a potential risk factor for dementia. Yet recent epidemiological research shows mixed evidence. The aim of this study is to investigate the longitudinal associations between ambient air pollution exposure and dementia in older people across five urban and rural areas in the UK. METHODS: This study was based on two population-based cohort studies of 11329 people aged ≥ 65 in the Cognitive Function and Ageing Study II (2008-2011) and Wales (2011-2013). An algorithmic diagnosis method was used to identify dementia cases. Annual concentrations of four air pollutants (NO2, O3, PM10, PM2.5) were modelled for the year 2012 and linked via the participants' postcodes. Multistate modelling was used to examine the effects of exposure to air pollutants on incident dementia incorporating death and adjusting for sociodemographic factors and area deprivation. A random-effect meta-analysis was carried out to summarise results from the current and nine existing cohort studies. RESULTS: Higher exposure levels of NO2 (HR: 1.04; 95% CI: 0.94, 1.14), O3 (HR: 0.90; 95% CI: 0.70, 1.15), PM10 (HR: 1.17; 95% CI: 0.86, 1.58), PM2.5 (HR: 1.41; 95% CI: 0.71, 2.79) were not strongly associated with dementia in the two UK-based cohorts. Inconsistent directions and strengths of the associations were observed across the two cohorts, five areas, and nine existing studies. CONCLUSIONS: In contrast to the literature, this study did not find clear associations between air pollution and dementia. Future research needs to investigate how methodological and contextual factors can affect evidence in this field and clarity the influence of air pollution exposure on cognitive health over the lifecourse.

Cognitive rehabilitation for people with mild to moderate dementia.

BACKGROUND: Cognitive impairments affect functional ability in people with dementia. Cognitive rehabilitation (CR) is a personalised, solution-focused approach that aims to enable people with mild-to-moderate dementia to manage everyday activities and maintain as much independence as possible. OBJECTIVES: To evaluate the effects of CR on everyday functioning and other outcomes for people with mild-to-moderate dementia, and on outcomes for care partners. To identify and explore factors that may be associated with the efficacy of CR. SEARCH METHODS: We searched the Cochrane Dementia and Cognitive Improvement Group Specialised Register, which contains records from MEDLINE, EMBASE, CINAHL, PsycINFO, LILACS, and other clinical trial databases, and grey literature sources. The most recent search was completed on 19 October 2022. SELECTION CRITERIA: We included randomised controlled trials (RCTs) comparing CR with control conditions and reporting relevant outcomes for the person with dementia and/or the care partner. DATA COLLECTION AND ANALYSIS: We extracted relevant data from published manuscripts and contacted trial authors if necessary. Within each of the comparisons, we pooled data for each outcome of interest and conducted inverse-variance, random-effects meta-analyses. We evaluated the certainty of the evidence using GRADEpro GDT. MAIN RESULTS: We identified six eligible RCTs published in English between 2010 and 2022, which together included 1702 participants. The mean age of participants ranged from 76 to 80 and the proportion of male participants was between 29.4% and 79.3%. Most participants, in the studies where the type of dementia was reported, had a diagnosis of Alzheimer's disease (AD; n = 1002, 58.9% of the whole sample, 81.2% of the participants for whom the specific diagnosis was reported). Risk of bias in the individual studies was relatively low. The exception was a high risk of bias in relation to blinding of participants and practitioners, which is not usually feasible with psychosocial interventions.  Our primary outcome of everyday functioning was operationalised in the included studies as goal attainment in relation to activities targeted in the intervention. For our main comparison of CR with usual care, we pooled data for goal attainment evaluated from three perspectives (self-rating of performance, informant rating of performance, and self-rating of satisfaction with performance) at end of treatment and at medium-term follow-up (3 to 12 months). We could also pool data at these time points for 20 and 19 secondary outcomes respectively. The review findings were strongly driven by one large, high-quality RCT.  We found high-certainty evidence of large positive effects of CR on all three primary outcome perspectives at the end of treatment: participant self-ratings of goal attainment (standardised mean difference (SMD) 1.46, 95% confidence interval (CI) 1.26 to 1.66; I2 = 0%; 3 RCTs, 501 participants), informant ratings of goal attainment (SMD 1.61, 95% CI 1.01 to 2.21; I2 = 41%; 3 RCTs, 476 participants), and self-ratings of satisfaction with goal attainment (SMD 1.31, 95% CI 1.09 to 1.54; I2 = 5%; 3 RCTs, 501 participants), relative to an inactive control condition. At medium-term follow-up, we found high-certainty evidence showing a large positive effect of CR on all three primary outcome perspectives: participant self-ratings of goal attainment (SMD 1.46, 95% CI 1.25 to 1.68; I2 = 0%; 2 RCTs, 432 participants), informant ratings of goal attainment (SMD 1.25, 95% CI 0.78 to 1.72; I2 = 29%; 3 RCTs, 446 participants), and self-ratings of satisfaction with goal attainment (SMD 1.19, 95% CI 0.73 to 1.66; I2 = 28%; 2 RCTs, 432 participants), relative to an inactive control condition. For participants at the end of treatment we found high-certainty evidence showing a small positive effect of CR on self-efficacy (2 RCTs, 456 participants) and immediate recall (2 RCTs, 459 participants). For participants at medium-term follow-up we found moderate-certainty evidence showing a small positive effect of CR on auditory selective attention (2 RCTs, 386 participants), and a small negative effect on general functional ability (3 RCTs, 673 participants), and we found low-certainty evidence showing a small positive effect on sustained attention (2 RCTs, 413 participants), and a small negative effect on memory (2 RCTs, 51 participants) and anxiety (3 RCTs, 455 participants).  We found moderate- and low-certainty evidence indicating that at the end of treatment CR had negligible effects on participant anxiety, quality of life, sustained attention, memory, delayed recall, and general functional ability, and at medium-term follow-up on participant self-efficacy, depression, quality of life, immediate recall, and verbal fluency. For care partners at the end of treatment we found low-certainty evidence showing a small positive effect on environmental aspects of quality of life (3 RCTs, 465 care partners), and small negative effects of CR on level of depression (2 RCTs, 32 care partners) and on psychological wellbeing (2 RCTs, 388 care partners).  For care partners at medium-term follow-up we found high-certainty evidence showing a small positive effect of CR on social aspects of quality of life (3 RCTs, 436 care partners) and moderate-certainty evidence showing a small positive effect on psychological aspects of quality of life (3 RCTs, 437 care partners). We found moderate- and low-certainty evidence at the end of treatment that CR had negligible effects on care partners' physical health, psychological and social aspects of quality of life, and stress, and at medium-term follow-up for the physical health aspect of care partners' quality of life and psychological wellbeing. AUTHORS' CONCLUSIONS: CR is helpful in enabling people with mild or moderate dementia to improve their ability to manage the everyday activities targeted in the intervention. Confidence in these findings could be strengthened if more high-quality studies contributed to the observed effects. The available evidence suggests that CR can form a valuable part of a clinical toolkit to assist people with dementia in overcoming some of the everyday barriers imposed by cognitive and functional difficulties. Future research, including process evaluation studies, could help identify avenues to maximise CR effects and achieve wider impacts on functional ability and wellbeing.

ANTECEDENTES: El deterioro cognitivo afecta la capacidad funcional de las personas con demencia. La rehabilitación cognitiva (RC) es un enfoque personalizado y centrado en soluciones que pretende que las personas con demencia de leve a moderada puedan realizar las actividades cotidianas y mantener la mayor independencia posible. OBJETIVOS: Evaluar los efectos de la RC en la funcionalidad cotidiana y otros desenlaces de las personas con demencia leve a moderada, así como en los desenlaces de los cuidadores. Identificar y explorar los factores que pueden estar asociados con la eficacia de la RC. MÉTODOS DE BÚSQUEDA: Se realizaron búsquedas en el Registro especializado del Grupo Cochrane de Demencia y trastornos cognitivos (Cochrane Dementia and Cognitive Improvement Group), que contiene registros de MEDLINE, EMBASE, CINAHL, PsycINFO, LILACS y otras bases de datos de ensayos clínicos, y fuentes de literatura gris. La búsqueda más reciente se completó el 19 de noviembre de 2022. CRITERIOS DE SELECCIÓN: Se incluyeron los ensayos controlados aleatorizados (ECA) que compararon la RC con condiciones control e informaron desenlaces relevantes para la persona con demencia y el cuidador. OBTENCIÓN Y ANÁLISIS DE LOS DATOS: Se extrajeron los datos pertinentes de los manuscritos publicados y se estableció contacto con los autores de los ensayos de ser necesario. Dentro de cada una de las comparaciones, se agruparon los datos de cada desenlace de interés y se realizaron metanálisis de efectos aleatorios por la inversa de la varianza. La certeza de la evidencia se evaluó mediante el método GRADE. RESULTADOS PRINCIPALES: Se identificaron seis ECA elegibles publicados en inglés entre 2010 y 2022, que en conjunto incluyeron 1702 participantes. La media de edad de los participantes varió de 76 a 80 años, y la proporción de participantes masculinos varió del 29,4% al 79,3%. La mayoría de los participantes, de los estudios en los que se informó el tipo de demencia, tenían un diagnóstico de enfermedad de Alzheimer (EA; n = 1002, 58,9% de toda la muestra, 81,2% de los participantes en los que se informó el diagnóstico específico). El riesgo de sesgo en los estudios individuales fue relativamente bajo. La excepción fue un alto riesgo de sesgo en relación con el cegamiento de los participantes y los profesionales, que no suele ser factible con las intervenciones psicosociales.  El desenlace principal de la funcionalidad cotidiana se operacionalizó en los estudios incluidos como el logro de objetivos en relación con las actividades abordadas en la intervención. Para la comparación principal de la RC con la atención habitual, se agruparon los datos del logro de los objetivos evaluados desde tres perspectivas (autoevaluación del desempeño, valoración de los informantes sobre el desempeño y autoevaluación de la satisfacción con el desempeño) al final del tratamiento y en el seguimiento a medio plazo (de tres a 12 meses). También fue posible agrupar los datos en estos puntos temporales de 20 y 19 desenlaces secundarios respectivamente. Los resultados de la revisión dependieron fuertemente de un ECA grande y de calidad alta.  Se encontró evidencia de certeza alta de grandes efectos positivos de la RC en los tres desenlaces principales al final del tratamiento: autoevaluaciones de los participantes sobre el logro de los objetivos (diferencia de medias estandarizada [DME] 1,46; intervalo de confianza [IC] del 95%: 1,26 a 1,66; I 2 = 0%; tres ECA, 501 participantes), valoraciones de los informantes sobre el logro de los objetivos (DME 1,61; IC del 95%: 1,01 a 2,21; I 2 = 41%; tres ECA, 476 participantes) y autoevaluaciones de la satisfacción con el logro de los objetivos (DME 1,31; IC del 95%: 1,09 a 1,54; I 2 = 5%; tres ECA, 501 participantes), en relación con una condición control inactiva. En el seguimiento a medio plazo se encontró evidencia de certeza alta que mostró un gran efecto positivo de la RC sobre las tres perspectivas de desenlaces principales: autoevaluaciones de los participantes sobre el logro de los objetivos (DME 1,46; IC del 95%: 1,25 a 1,68; I 2 = 0%; dos ECA, 432 participantes), valoraciones de los informantes sobre el logro de los objetivos (DME 1,25; IC del 95%: 0,78 a 1,72; I 2 = 29%; tres ECA, 446 participantes) y autoevaluaciones de la satisfacción con el logro de los objetivos (DME 1,19; IC del 95%: 0,73 a 1,66; I 2 = 28%; dos ECA, 432 participantes), en relación con una condición control inactiva. Con respecto a los participantes, al final del tratamiento se encontró evidencia de certeza alta que muestra un pequeño efecto positivo de la RC sobre la autoeficacia (dos ECA, 456 participantes) y el recuerdo inmediato (dos ECA, 459 participantes). También en los participantes, en el seguimiento a medio plazo se encontró evidencia de certeza moderada que mostró un pequeño efecto positivo de la RC sobre la atención auditiva selectiva (dos ECA, 386 participantes) y un pequeño efecto negativo sobre la capacidad funcional general (tres ECA, 673 participantes), además se encontró evidencia de certeza baja que mostró un pequeño efecto positivo sobre la atención sostenida (dos ECA, 413 participantes) y un pequeño efecto negativo sobre la memoria (dos ECA, 51 participantes) y la ansiedad (tres ECA, 455 participantes).  Se encontró evidencia de certeza moderada y baja que indicó que al final del tratamiento la RC tuvo efectos insignificantes sobre la ansiedad, la calidad de vida, la atención sostenida, la memoria, el recuerdo retardado y la capacidad funcional general de los participantes, y en el seguimiento a medio plazo sobre la autoeficacia, la depresión, la calidad de vida, el recuerdo inmediato y la fluidez verbal de los participantes. En el caso de los cuidadores, al final del tratamiento se encontró evidencia de certeza baja que mostró un pequeño efecto positivo sobre los aspectos ambientales de la calidad de vida (tres ECA, 465 cuidadores), y pequeños efectos negativos de la RC sobre el nivel de depresión (dos ECA, 32 cuidadores) y sobre el bienestar psicológico (dos ECA, 388 cuidadores).  También en los cuidadores, en el seguimiento a medio plazo se encontró evidencia de certeza alta que mostró un pequeño efecto positivo de la RC sobre los aspectos sociales de la calidad de vida (tres ECA, 436 cuidadores) y evidencia de certeza moderada que mostró un pequeño efecto positivo sobre los aspectos psicológicos de la calidad de vida (tres ECA, 437 cuidadores). Se encontró evidencia de certeza moderada y baja al final del tratamiento de que la RC tenía efectos insignificantes sobre la salud física de los cuidadores, los aspectos psicológicos y sociales de la calidad de vida y el estrés, así como en el seguimiento a medio plazo en el aspecto de la salud física de la calidad de vida de los cuidadores y el bienestar psicológico. CONCLUSIONES DE LOS AUTORES: La RC ayuda a las personas con demencia leve o moderada a mejorar su capacidad para realizar las actividades cotidianas objeto de la intervención. La confianza en estos resultados se podría reforzar si más estudios de calidad alta contribuyeran a los efectos observados. La evidencia disponible indica que la RC podría constituir una parte valiosa de un conjunto de herramientas clínicas para ayudar a las personas con demencia a superar algunas de las barreras cotidianas impuestas por las dificultades cognitivas y funcionales. Los estudios de investigación futuros, incluidos los estudios de evaluación de procesos, podrían ayudar a identificar vías para maximizar los efectos de la RC y lograr repercusiones más amplias en la capacidad funcional y el bienestar.

Characteristics of people living with undiagnosed dementia: findings from the CFAS Wales study.

BACKGROUND: Many people living with dementia remain undiagnosed, with diagnosis usually occurring long after signs and symptoms are present. A timely diagnosis is important for the wellbeing of the person living with dementia and the family, allowing them to plan and have access to support services sooner. The aim of this study was to identify demographic characteristics and neuropsychiatric symptoms associated with being undiagnosed, which may help clinicians be more aware of signs that could be indicative of early-stage or undetected dementia. METHODS: This cross-sectional study uses data from waves 1 and 2 (two years apart) of the Cognitive Function and Ageing Studies Wales (CFAS Wales). CFAS Wales participants were included who had a study assessment of dementia, as determined by the Automated Geriatric Examination for Computer Assisted Taxonomy (AGECAT) algorithm and by expert assessment, and who had had their primary care records checked for a clinical diagnosis of dementia. We identified 19 people with a diagnosis of dementia and 105 people living with undiagnosed dementia, and explored demographic characteristics and the presence or absence of a range of neuropsychiatric symptoms in the undiagnosed population using logistic regression. RESULTS: Findings suggest that people living with dementia who have better cognition, have more years of education, or live in more deprived areas are less likely to have a diagnosis. In terms of neuropsychiatric symptoms, depression and sleep problems were associated with being undiagnosed. Apathy was common across all people living with dementia, but those with a diagnosis were more likely to have severe apathy. CONCLUSIONS: This study has clinical practice implications as the findings may help clinicians be more aware of characteristics and symptoms of people who are undiagnosed or who are at greater risk of remaining undiagnosed, enabling them to be more vigilant in picking up signs of dementia at an earlier stage.

Associations between unmet needs for daytime activities and company and scores on the Neuropsychiatric Inventory-Questionnaire in people with dementia: a longitudinal study.

OBJECTIVES: To examine prospectively the association between unmet needs for daytime activities and company and behavioural and psychological symptoms of dementia. METHODS: We included 451 people with mild or moderate dementia, from eight European countries, who were assessed three times over 12 months. Unmet needs were measured with the Camberwell Assessment of Need for the Elderly. Three sub-syndromes of the Neuropsychiatric Inventory-Questionnaire were regressed, one-by-one, against unmet needs for daytime activities and company, adjusting for demographic and clinical-functional covariates. RESULTS: Unmet needs for daytime activities were associated with more affective symptoms at baseline, six and twelve months, mean 0.74 (p < 0.001), 0.76 (p < 0.001) and 0.78 (p = 0.001) points higher score respectively, and with more psychotic symptoms at baseline (mean 0.39 points, p = 0.007) and at six months follow-up (mean 0.31 points, p = 0.006). Unmet needs for company were associated with more affective symptoms at baseline, six and twelve months, mean 0.44 (p = 0.033), 0.67 (p < 0.001) and 0.91 (p < 0.001) points higher score respectively, and with more psychotic symptoms at baseline (mean 0.40 points, p = 0.005) and at six months (mean 0.35 points, p = 0.002) follow-up. CONCLUSION: Interventions to reduce unmet needs for daytime activities and company could reduce affective and psychotic symptoms in people with dementia.

Trajectories of relationship quality in dementia: a longitudinal study in eight European countries.

OBJECTIVES: Relationship quality (RQ) between a person with dementia and a family carer may influence their health and quality of life. However, evidence regarding its course and influencing factors is limited. We aimed to explore RQ trajectories in dementia, and identify predictors of change. METHODS: We analysed longitudinal data from a cohort of 350 community-dwelling people with dementia and their informal carers, participating in the Actifcare study in eight European countries. The Positive Affect Index, rated separately by both people with dementia and their carers, assessed RQ. Other measures included the Neuropsychiatric Inventory Questionnaire (regarding persons with dementia), and the Relative Stress Scale, Sense of Coherence Scale and Lubben Social Network Scale (for carers). Trajectories and influencing factors were explored applying a latent growth model (LGM). RESULTS: RQ in the group of carers declined over 1 year, but RQ scores for the persons with dementia did not change. Higher stress in carers negatively influenced their baseline RQ ratings. Carer sense of coherence and being a spouse were associated with more positive baseline RQ carer assessments. Higher levels of neuropsychiatric symptoms were linked to decline in carers' RQ, whereas social support was associated with more positive RQ trajectories. CONCLUSION: This study provides a valuable insight into the course of RQ. LGM proved useful to explore the factors that influence RQ trajectories and variability within- and between-persons. Our findings emphasise the importance of carer-perceived social support and sense of coherence, and of reducing neuropsychiatric symptoms, in maintaining a good RQ.

Reflections on a personalized cognitive rehabilitation intervention: Experiences of people living with dementia and their carers participating in the GREAT trial.

Cognitive rehabilitation for people living with early-stage dementia improves functional ability in areas targeted in the therapy, but little is known about how participants experience this intervention. This qualitative paper investigates participants' views about a cognitive rehabilitation intervention in a randomized controlled trial (the GREAT trial) and aims to help explain and interpret the findings and to inform further intervention development. Using in-depth thematic analysis, 43 semi-structured interviews (35 individual and 8 dyadic) were conducted with 25 people living with dementia and 26 family carers from three sites. The person-centred, individualized approach was valued. Some participants' views about dementia were questioned as a consequence of taking part in the therapy; they considered the effectiveness of the intervention in the context of the progressive nature of the condition. Certain participants continued to be doubtful, focussing on the inevitability of decline, rather than the possibility of reablement. Such views may have influenced engagement. The therapeutic relationship played a vital role as it was how personalized care was provided and participants' views had changed positively. Therapists engendered greater confidence and reduced anxiety and social isolation. Positive responses support personalized rehabilitative care to address the specific needs of people living with dementia.

A longitudinal exploration of mental health resilience, cognitive impairment and loneliness.

OBJECTIVE: There is a growing interest in how people living with dementia may achieve good outcomes and be resilient despite their health challenges. Understanding what might be important for resilience in this population is largely untested theory. METHODS: The analysis draws a subsample with cognitive impairment (N = 579) from two waves of the Cognitive Function and Ageing Studies Wales study, a nationally representative study of community-dwelling people aged 65+ in Wales. We constructed a measure of mental health resilience (MHR) defined as no depression, no anxiety and high well-being. Drawing on a resilience framework, we tested univariate and cumulative effects models of the factors that enable MHR, and then examined whether MHR is important for reducing loneliness over time. RESULTS: Across both waves of data 22% (n = 121) met the criteria for MHR. The cumulative effects model found the odds of MHR were greater for male gender, higher self-esteem, greater social resources and no subjective memory complaints. Controlling for these significant predictors, MHR significantly predicted lower total and sub-scale scores for loneliness at wave 2. Sensitivity analysis shows these effects held at lower levels of cognitive function when the Mini-Mental State Examination score was <25, but not at <23. CONCLUSIONS: This paper addresses a gap in research regarding the conceptualisation and measurement of resilience when facing cognitive impairment. Understanding what aspects of a person's life might enable good mental health despite cognitive impairment-to be resilient-could inform effective strategies for friends and families, along with health, and social policy and practice.

A validation study of the CarerQol instrument in informal caregivers of people with dementia from eight European countries.

PURPOSE: Informal care constitutes an important part of the total care for people with dementia. Therefore, the impact of the syndrome on their caregivers as well as that of health and social care services for people with dementia should be considered. This study investigated the convergent and clinical validity of the CarerQol instrument, which measures and values the impact of providing informal care, in a multi-country sample of caregivers for people with dementia. METHODS: Cross-sectional data from a sample of 451 respondents in eight European countries, collected by the Actifcare project, were evaluated. Convergent validity was analysed with Spearman's correlation coefficients and multivariate correlations between the CarerQol-7D utility score and dimension scores, and other similar quality of life measures such as CarerQol-VAS, ICECAP-O, and EQ-5D. Clinical validity was evaluated by bivariate and multivariate analyses of the degree to which the CarerQol instrument can differentiate between characteristics of caregivers, care receivers and caregiving situation. Country dummies were added to test CarerQol score differences between countries. RESULTS: The mean CarerQol utility score was 77.6 and varied across countries from 74.3 (Italy) to 82.3 (Norway). The scores showed moderate to strong positive correlations with the CarerQol-VAS, ICECAP-O, and EQ-5D health problems score of the caregiver. Multivariate regression analysis showed that various characteristics of the caregiver, care receiver and caregiving situation were associated with caregiver outcomes, but there was no evidence of a country-level effect. CONCLUSION: This study demonstrates the convergent and clinical validity of the CarerQol instrument to evaluate the impact of providing informal care for people with dementia.

Obtaining EQ-5D-5L utilities from the disease specific quality of life Alzheimer's disease scale: development and results from a mapping study.

PURPOSE: The Quality of Life Alzheimer's Disease Scale (QoL-AD) is commonly used to assess disease specific health-related quality of life (HRQoL) as rated by patients and their carers. For cost-effectiveness analyses, utilities based on the EQ-5D are often required. We report a new mapping algorithm to obtain EQ-5D indices when only QoL-AD data are available. METHODS: Different statistical models to estimate utility directly, or responses to individual EQ-5D questions (response mapping) from QoL-AD, were trialled for patient-rated and proxy-rated questionnaires. Model performance was assessed by root mean square error and mean absolute error. RESULTS: The response model using multinomial regression including age and sex, performed best in both the estimation dataset and an independent dataset. CONCLUSIONS: The recommended mapping algorithm allows researchers for the first time to estimate EQ-5D values from QoL-AD data, enabling cost-utility analyses using datasets where the QoL-AD but no utility measures were collected.

Who benefits most from resilience-building groups for 'at-risk' older people? a pilot service-evaluation.

OBJECTIVES: Resilience-building interventions have not yet targeted older adults, despite the importance of well-being for maintaining independence and health. The 'My Generation' programme aims to build resilience through greater access to social networks, well-being activities, and psycho-educational support; this paper examines service evaluation data from its pilot implementation to identify factors leading to positive outcomes. METHOD: The 'My Generation' programme comprises eight weekly 2-hour group sessions; each session includes both psychoeducation and a well-being activity. Participants were invited to complete questionnaires at the start and end of the course, and 12 weeks later. These included measures of well-being, loneliness, social connections and self-efficacy. RESULTS: Baseline assessments were completed by 239 older people (average age 71, range 50-97), attending 38 courses in four centres. Most were female (80%), 40% were widowed, 25% divorced/separated and 64% lived alone. Demographics did not differ between those completing post-intervention assessments (N = 137) and those who did not. Compared with normative data, participants had significantly lower well-being and greater feelings of loneliness than age-peers. Significant improvements in well-being, self-efficacy, social connections and one measure of loneliness were evident at post-intervention and follow-up assessments. Improvement in well-being at post-intervention was greater in those who were divorced/separated and who were not carers, and at follow-up in females and those living alone. CONCLUSION: The 'My Generation' package appeared effective in improving well-being, self-efficacy, social connections and aspects of loneliness in at-risk older people. More research is needed to identify the intervention's key components and possible between-centre differences in outcomes.

Bridging the divide between biomedical and psychosocial approaches in dementia research: the 2019 INTERDEM manifesto.

OBJECTIVE: To provide a new perspective on integrated biomedical and psychosocial dementia research. BACKGROUND: Dementia is being recognized as a multifactorial syndrome, but there is little interaction between biomedical and psychosocial approaches. A way to improve scientific knowledge is to seek better understanding of the mechanisms underlying the interaction between biomedical and psychosocial paradigms. One rationale for integrating biomedical and psychosocial research is the discordance between neuropathology and cognitive functioning. The concept of social health might bridge the two paradigms. It relates to how social resources influence the dynamic balance between capacities and limitations. HYPOTHESES: Social health can act as the driver for accessing cognitive reserve, in people with dementia through active facilitation and utilization of social and environmental resources. Thereby we link lifestyle social and opportunities to the brain reserve hypothesis. MANIFESTO: We provide a Manifesto on how to significantly move forward the dementia research agenda.

Development of best practice recommendations to enhance access to and use of formal community care services for people with dementia in Europe: a Delphi process conducted by the Actifcare project.

OBJECTIVES: Home-dwelling people with dementia and their informal carers experience barriers impeding access to community care services. This study is a part of the Actifcare project where eight countries participated. The aim was to achieve consensus on best practice recommendations for enhancing access to and use of formal community care services. METHOD: A Delphi consensus process was conducted. A total of 48 professional experts, 14 people with dementia and 20 informal carers rated the importance of 72 statements on a 7-point Likert scale. Consensus was based on the median and level of dispersion. RESULTS: Sixty-two statements reached consensus, resulting in three categories of recommendations. An appointed contact person was central in Recommendations to enhance access. Coordination and flexibility in setting and type of services were among the Recommendations to enhance use. Training of health care personnel and person-centred care were central Recommendations that can facilitate access or use indirectly. CONCLUSION: The Actifcare Best Practice Recommendations suggest practical measures that can be taken by decision makers to enhance access and use of community care services, and thereby enhance quality of care and quality of life for home dwelling people with dementia and their informal carers.

Measuring the well-being of people with dementia: a conceptual scoping review.

BACKGROUND: Enabling people with dementia to 'live well' is a policy and research priority in many countries. However, instruments for measuring outcomes of psychosocial interventions designed to promote well-being in dementia are often derived from a symptom-focused, loss/deficit approach, or from broad quality of life concepts. A pan-European dementia working group called for research on the development of an alternative asset/strengths-based conceptual framework of well-being in dementia. This paper takes forward this recommendation by developing such a framework and using this to map relevant self-report outcome measures. METHODS: Three scoping reviews of published studies were conducted iteratively. First, we examined the literature on lived experiences of well-being and quality of life in people with dementia and then the wider dementia literature for application of well-being constructs. The synthesised findings generated conceptual domains of well-being in people with dementia. Corresponding self-report instruments used in dementia research were scoped, categorised within the conceptual framework and their potential value in measuring outcomes for people with dementia was examined. FINDINGS: Six conceptual domains for the measurement of well-being and 35 self-report instruments that have been used with people with dementia were identified. Six instruments were developed specifically for people with dementia, five were derived from the gerontological literature and 24 from the well-being literature. Fifteen instruments and one sub-scale have been examined for psychometric properties amongst people with dementia. To date, 20 have been used as outcome measures, with seven measuring change over time. A number of identified instruments utilise traditional retrospective Likert-scaling response formats, limiting their potential for use with some groups of people with dementia. CONCLUSION: An assets/strengths-based framework is presented, outlining structural domains for selecting self-report measures of well-being in people with dementia. It provides a foundation for enhancing research into processes and outcomes of psychosocial interventions, including instrument development, more precise matching of intervention aims with outcome measurement, and newer technology-based 'in-the-moment' measurement.

Is there equity in initial access to formal dementia care in Europe? The Andersen Model applied to the Actifcare cohort.

OBJECTIVES: In the current study, the Anderson model is used to determine equitable access to dementia care in Europe. Predisposing, enabling, and need variables were investigated to find out whether there is equitable access to dementia-specific formal care services. Results can identify which specific factors should be a target to improve access. METHODS: A total of 451 People with middle-stage dementia and their informal carers from eight European countries were included. At baseline, there was no use of formal care yet, but people were expected to start using formal care within the next year. Logistic regressions were carried out with one of four clusters of service use as dependent variables (home social care, home personal care, day care, admission). The independent variables (predisposing, enabling, and need variables) were added to the regression in blocks. RESULTS: The most significant predictors for the different care clusters are disease severity, a higher sum of (un)met needs, hours spent on informal care, living alone, age, region of residence, and gender. CONCLUSION: The Andersen model provided for this cohort the insight that (besides need factors) the predisposing variables region of residence, gender, and age do play a role in finding access to care. In addition, it showed us that the numbers of hours spent on informal care, living alone, needs, and disease severity are also important predictors within the model's framework. Health care professionals should pay attention to these predisposing factors to ensure that they do not become barriers for those in need for care.

A validation study of the ICECAP-O in informal carers of people with dementia from eight European Countries.

PURPOSE: The pressure on healthcare budgets remains high, partially due to the ageing population. Economic evaluation can be a helpful tool to inform resource allocation in publicly financed systems. Such evaluations frequently use health-related outcome measures. However, in areas such as care of older people, improving health outcomes is not necessarily the main focus of care interventions and broader outcome measures, including outcomes for those providing informal care, may be preferred when evaluating such interventions. This paper validates a recently introduced well-being measure, the ICECAP-O, in a population of informal carers for people with dementia from eight European countries. METHODS: Convergent and discriminant validity tests were performed to validate the ICECAP-O using data obtained in a sample of 451 respondents from Germany, Ireland, Italy, the Netherlands, Norway, Portugal, Sweden and the UK. These respondents completed a number of standardized questionnaires within the framework of the Actifcare project. RESULTS: The ICECAP-O performed well among informal carers, in terms of both convergent and discriminant validity. In the multivariate analysis, it was found to be significantly associated with the age of the person with dementia, EQ-5D-5L health problem index of the person with dementia, carer-patient relationship, care recipient CDR, carer LSNS Score, the PAI score, and Perseverance Time. CONCLUSION: The ICECAP-O appears to be a valid measure of well-being in informal carers for people with dementia. The ICECAP-O may therefore be useful as an outcome measure in economic evaluations of interventions aimed at such informal carers, when these aim to improve well-being beyond health.

Assistive technology designed to support self-management of people with dementia: user involvement, dissemination, and adoption. A scoping review.

BACKGROUND: Assistive technology is advocated as a key solution to the need for support among people living with dementia. There is growing awareness of the benefits of user involvement in the design and test of these technologies and the need to identifying applicable and effective methods for implementation. The aim of this review was to explore and synthesize research addressing assistive technology designed to be used by people with dementia for self-management. Further research aims were to explore if and how user involvement, dissemination, and adoption of assistive technology were addressed. METHOD: Electronic databases were searched using specified search terms. Key publications and grey literature sources were hand-searched. Materials published until year end 2018 were included. The results were summarized according to the research aims. RESULTS: Eleven papers derived from eight studies were included. The studies presented data from prototype design and testing, and the review showed great variation in study scope, design, and methodology. User involvement varied from extensive involvement to no user involvement. Methods for adoption also varied widely and only targeted prototype testing. None of the studies addressed dissemination. CONCLUSION: The results of this review underline the need for well-designed high-quality research into all the aspects that are essential to deliver applicable, effective, and sustainable assistive technology to support self-management of people with dementia. There is a need for evidence-based methods to promote and qualify user involvement, dissemination, and adoption. The results also point to the need for standardized outcome measures and standards for conducting and reporting research to improve its quality and impact.

People with dementia and caregiver preferences for digital life story work service interventions. A discrete choice experiment and digital survey.

Objectives: Little is understood about the optimal way to implement digital life story work (LSW). The aim of this research was to explore the preferences of people with dementia and caregivers in relation to digital LSW in an effort to improve future engagement.Methods: 67 caregivers responded to an online discrete choice experiment (DCE) survey containing 16 pairwise choices. The DCE was analysed using a random effects logit model. Willingness to pay and odds ratios were also calculated. 17 participants with dementia completed an online survey in which they made choices about different aspects of digital LSW services.Results: Caregivers valued four out of five attributes [setting (p = 0.000), price (p = 0.000), elementary usability and accessibility (p = 0.001), and follow-up assistance (p = 0.034)]. In data from participants with dementia, the most preferred setting was individual one-to-one (70.6%), and the most preferred use of digital life storybooks was to share memories with others (64.7%). Marginally more participants with dementia said they would pay for the service (53%) rather than only use it free of charge (47%). Those with advanced ICT skills preferred to learn how to use the digital life storybook (64.7%), while those with elementary/intermediate skills, preferred to have it created for them (35.3%).Conclusions: This exploratory study provides an insight into preferences of people with dementia and caregivers, of how digital LSW is implemented. Results can contribute to future planning and tailoring of these services.

Self-management and cognitive rehabilitation in early stage dementia - merging methods to promote coping and adoption of assistive technology. A pilot study.

Objectives: It is essential to develop interventions that meet individual needs for coping and self-management of people with dementia. This study explored the feasibility and applicability of an intervention merging methods of cognitive rehabilitation and self-management groups for people with early stage dementia. The potential of this intervention to promote adoption of assistive technology was also explored.Method: People with early stage Alzheimer's disease (N = 19) participated in the programme comprising both individual and group sessions. Caregivers were involved in the individual session and a separate group meeting. The intervention both addressed individual goals and more general self-management approaches. In addition, both participants and caregivers were introduced to the ReACT app, a holistic solution tailormade to meet self-management needs of people with early stage dementia.Results: There was significant improvement in the participants' attainment of individual goals and satisfaction with goal attainment from pre- to post-intervention. Participants and caregivers generally reported a positive attitude towards the intervention, attendance rate was high, and all participants completed the intervention. Qualitative results also indicated that the intervention promoted awareness, acceptance and coping among participants. The specific benefits of using the ReACT app for self-management were also emphasised. Forty-two percent of the participants adopted the app and continued using it after completing the intervention.Conclusion: Results from this pilot study indicated that the intervention is both feasible and applicable and can be an effective method to promote coping and adoption of assistive technology among people with early stage dementia.

Interventions to enhance access to and utilization of formal community care services for home dwelling persons with dementia and their informal carers. A scoping review.

Objectives: Home dwelling people with dementia and their informal carers often do not receive the formal care services they need. This study examined and mapped the research regarding interventions to improve access and use of formal community care services.Method: This is a scoping review with searches in PubMed, CINAHL, PsychINFO, Medline, Cochrane Database of Systematic Reviews, Social Science Citation index and searches of grey literature in international and national databases. Studies were categorized according to the measure used to enhance access or use.Results: From international databases, 2833 studies were retrieved, 11 were included. Five studies were included from other sources. In total, 16 studies published between 1989 and 2018 were examined; seven randomized controlled trials, six pretest-posttest studies and three non-randomized controlled studies. Sample sizes varied from 29 to 2682 participants, follow-up from four weeks to four years. Five types of interventions were identified: Case management, monetary support, referral enhancing, awareness & information focused and inpatient focused. Only two studies had access or use of community services as the primary outcome. Fourteen studies, representing all five types of interventions, had positive effects on one or more relevant outcomes. Two interventions had no effect on relevant outcomes.Conclusion: The included studies varied widely regarding design, type of intervention and outcomes. Based on this, the evidence base for interventions to enhance access to and use of formal community services is judged to be limited. The most studied type of intervention was case management. More research is recommended in this field.

Do caregiver profiles predict the use of dementia care services? Findings from the Actifcare study.

Objectives: Previously developed dementia caregiver profiles defined by caregiver age and burden, have been associated with caregiver quality of life, depression and perseverance time. The current aim was to investigate whether these caregiver profiles could predict subsequent service use. In addition, non-personal (e.g. meals on wheels) and supportive services (e.g. Alzheimer café) in early dementia were investigated as predictors.Methods: A total of 451 dyads of people with dementia and their informal caregivers from eight European countries were followed for one year. People were included if they did not use formal (personal) care but were expected to do so within 1 year. Logistic regression analyses were used with four clusters of service use as dependent variables (home social care, home personal care, day care and admission). The independent variables were caregiver profiles, and non-personal and supportive services at baseline.Results: Caregiver profiles were significant predictors of service use; those experiencing high strain were more likely to use formal care. The use of low-intensity, less intrusive services at baseline significantly predicted the use of home personal care and admission at follow-up. The use of day care at follow-up was predicted by the baseline use of supportive services.Conclusion: Caregiver profiles are valuable predictors for service use: this knowledge can aid professionals in ensuring optimal access to services, which is important for maintaining independence at home. In addition, the use of supportive and less intrusive, non-personal services in the early stages of dementia is to be advised.