Severity of dementia, anosognosia, and depression in relation to the quality of life of patients with Alzheimer disease: discrepancies between patients and caregivers

A national survey on health-related quality of life for people with dementia in residential long-term care institutions

BACKGROUND

Health-related quality of life (HRQoL) is an essential outcome parameter in geriatric research; however, the available evidence is mixed regarding the factors associated with HRQoL among people with dementia. We aimed to identify factors that contribute to HRQoL among people with dementia in residential long-term care (LTC) institutions.

METHODS

We randomly selected 299 of 1607 registered residential LTC institutions in Taiwan. A cross-sectional survey was conducted between 2019 and 2020, including items on demographic characteristics, comorbidities, the EuroQol-5 dimensions-5 levels (EQ-5D-5L; utility and visual analog scale [VAS] scores), the Mini-Mental State Examination (MMSE), the Clinical Dementia Rating (CDR), behavioral and psychological symptoms of dementia, activities of daily living (ADL), and instrumental ADL (IADL).

RESULTS

In total, 1313 people with dementia from 267 institutions were enrolled (mean age, 76.4 ± 12.7 years). The mean EQ-5D-5L utility and VAS scores were 0.10 (standard deviation [SD] = 0.48) and 66.57 (SD = 20.67), respectively. In multivariate linear regression analysis, higher scores for ADL, IADL, and CDR sum of boxes were associated with higher utility scores. Higher VAS scores were associated with higher ADL and MMSE scores. Lower utility scores and VAS scores were associated with more frequent depressive symptoms.

CONCLUSION

ADL, dementia severity, cognitive function, and depressive symptoms influenced the HRQoL of people with dementia in residential LTC institutions. Longitudinal studies should be conducted to better understand how HRQoL changes over time among people with disabilities.

Coexisting with anomie: Experiences of persons living with early-stage dementia: A grounded theory study

Individuals in the early stages of dementia often endure elevated levels of stress and anxiety, which can hinder their ability to adapt to the progression of dementia. To mitigate the negative impacts of dementia more effectively, it is necessary to explore the trajectory of the adaptation process of persons living with dementia. This study aimed to construct a theoretical framework for the adaptation process of individuals in the early stages of dementia. Participants were dyads of persons diagnosed with mild dementia or mild cognitive impairment (≥ 60 years of age) and their primary family caregivers. This longitudinal study used a grounded theory approach to explore the adaptation trajectory changes in persons with mild dementia over a 3-year period. Data were collected from dyads with face-to-face interviews. Analysis of the interview data revealed the core category was 'Coexisting with anomie: Progressive disappointment and striving', which was comprised of three categories: awareness of alienation, unsettled feelings, and restorative avoidance coping. Categories changed depending on levels of cognition and constituted progressive and cyclical dynamic processes. Four contextual factors positively or negatively influenced adaptation: level of insight about dementia, personal traits, caregiving style of the caregiver, and level of social interactions. These findings provide a new perspective about the mental health of persons in early-stage dementia. Understanding coexisting with anomie and related influencing factors could facilitate the development of support interventions by mental health nursing staff, which could improve emotional safety, promote psychological well-being, and increase quality of life for persons living with dementia.

Neuropsychiatric Symptoms are Related to Blood-biomarkers in Major Neurocognitive Disorders

BACKGROUND

Neuropsychiatric symptoms (NPS) are highly prevalent among individuals with major neurocognitive disorders (MNCD).

OBJECTIVE

Here, we characterized blood biomarkers (metabolic, inflammatory, neurotrophic profiles and total antioxidant), body composition, physical fitness and quality of life (QoL) in individuals with MNCD according to NPS.

METHODS

The sample comprised 34 older adults (71.4% women; 74.06±6.03 yrs, with MNCD diagnosis) categorized according to 50th percentile [Low (≤12) or High (≥13)] for NPS (Neuropsychiatric Inventory Questionnaire). Sociodemographic, clinical data, body composition, anthropometric, cognitive assessment (ADAS-Cog), physical fitness (Senior Fitness Test), QoL (QoL-Alzheimer's Disease scale) were evaluated, and blood samples were collected for biochemical analysis.

RESULTS

Low compared to high NPS group showed higher levels of IL-6, IGF-1and neurotrophic zscore (composite of IGF-1, VEGF-1, BDNF). Additionally, low compared to high NPS group have higher QoL, aerobic fitness and upper body and lower body strength.

CONCLUSION

The severity of NPS seems to be related to modified neurotrophic and inflammatory outcomes, lower physical fitness, and poor QoL. Strategies to counteract NPS development may preserve the physical and mental health of individuals with MNCD.

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Assessing Patients and Care Partner Ratings of Communication-Related Participation Restrictions: Insights From Degenerative Disease

PURPOSE

Prior studies have shown that communication-related participation restrictions in patients with degenerative disease do not always match clinician judgment or objective indices of symptom severity. Although there is a growing body of literature documenting that discrepancies between patients with dementia and their care partners' perception of participation restrictions exist, it is not known how care partner perceptions of communication participation restrictions specifically match or diverge from the patients' experiences, which may inform the use of care partner proxy in the context of degenerative diseases.

METHOD

Thirty-eight patients with progressive neurologic conditions (progressive supranuclear palsy, corticobasal syndrome, and primary progressive aphasia or apraxia of speech) and, in most instances, focal cognitive-communication disorders were included. The patients and their accompanying care partners independently completed the Communicative Participation Item Bank, short form, a 10-question survey about communication participation restrictions in different contexts. Care partners were instructed to complete the form with their perception of the patient's experience. The difference between patient and care partner total scores were calculated and analyzed relative to clinical and demographic variables of interest.

RESULTS

Care partner ratings modestly tracked with patient experience and objective indices of symptom severity but did not exactly match patient ratings. The presence of aphasia increased, but did not fully account for, the likelihood of a discrepancy between care partner and patient ratings.

CONCLUSION

Although careful consideration should be given prior to using care-partner report as a proxy for patient experience, it is worthwhile to include care partner ratings as a means of supporting conversations about differing perceptions, guiding joint intervention planning, and monitoring care-partner perceptions of change along with the implementation of supported conversation strategies.

Palliative care for people with dementia

Dementia is the most common neurologic disease, affecting approximately 55 million people worldwide. Dementia is a terminal illness, although not always recognized as such. This chapter discusses the key issues in providing palliative care for people with living with dementia and their families. Common palliative care needs and symptoms are presented, including psychosocial, physical, emotional, and spiritual, and the need to actively anticipate and seek symptoms according to the dementia type and stage is emphasized. Families are hugely impacted by a dementia diagnosis, and throughout this chapter, they are considered in the unit of care, and also as a member of the care team. Multiple challenges particular to dementia palliative care are highlighted throughout, such as the lack of timely dementia diagnoses, difficulty with symptom prognostication, the person's inability to verbally express their symptoms and care preferences, and a low threshold for medication side effects. Finally, service models for dementia palliative care in community, residential, and acute hospital settings are discussed, along with the evidence for each. Overall, this chapter reinforces that the individual needs of the person living with dementia and their family must be considered to provide person-centered and comprehensive palliative care, enabling them to live well until death.

Identification of Major Cognitive Disorders in Self-Reported versus Administrative Health Data: A Cohort Study in Quebec

BACKGROUND

The first imperative in producing the relevant and needed knowledge about major neurocognitive disorder (MNCD) is to identify people presenting with the condition adequately. To document potential disparities between administrative health databases and population-based surveys could help identify specific challenges in this population and methodological shortfalls.

OBJECTIVE

To describe and compare the characteristics of community-dwelling older adults according to four groups: 1) No MNCD; 2) Self-reported MNCD only; 3) MNCD in administrative health data only; 4) MNCD in both self-reported and administrative health data.

METHODS

This retrospective cohort study used the Care Trajectories-Enriched Data (TorSaDE) cohort, a linkage between five waves of the Canadian Community Health Survey (CCHS) and health administrative health data. We included older adults living in the community who participated in at least one cycle of the CCHS. We reported on positive and negative MNCD in self-reported versus administrative health data. We then compared groups' characteristics using chi-square tests and ANOVA.

RESULTS

The study cohort was composed of 25,125 older adults, of which 784 (3.12%) had MNCD. About 70% of people with an MNCD identified in administrative health data did not report it in the CCHS. The four groups present specific challenges related to the importance of perception, timely diagnosis, and the caregivers' roles in reporting health information.

CONCLUSION

To a certain degree, both data sources fail to consider subgroups experiencing issues related to MNCD; studies like ours provide insight to understand their characteristics and needs better.

Do we agree or disagree? A systematic review of the application of preference-based instruments in self and proxy reporting of quality of life in older people

PURPOSE

Quality of life is an important person-centred outcome in health and aged care settings. Due to an increasing prevalence of cognitive decline and dementia in ageing populations, a proportion of older people receiving health and aged care services may not be able to reliably assess their own quality of life, highlighting the need for proxy assessment. This systematic review sought to investigate the level of agreement between self and proxy-report of older people's quality of life using established preference-based instruments of quality of life suitable for economic evaluation.

METHODS

A systematic review was conducted following PRISMA guidelines. Eight databases were searched: Web of Science, Scopus, Medline, Econlit, PsychINFO, CINAHL, Ageline and Cochrane Library. Information was extracted on the instruments, population samples (including any cognitive thresholds applied), mean scores, type of proxy, and measures of inter-rater agreement.

RESULTS

A total of 50 studies using eight different preference-based quality of life instruments were identified. Most studies were cross-sectional (72%) with a wide variety of cognitive assessments and thresholds applied to define older participants with cognitive impairment. The most common proxies were family members, mostly spouses. The level of agreement between self and proxy-report was generally poor - irrespective of the instrument applied or type of proxy - with proxy-report generally indicating lower levels of quality of life than self-report. There was some evidence of stronger agreement on more observable quality of life domains e.g., physical health and mobility, relative to less observable domains e.g. emotional well-being. Few studies tracked self and/or proxy-report of quality of life longitudinally.

CONCLUSIONS

More research is needed to develop evidence to inform guidance on self-report versus proxy-report of quality of life for older people receiving health and aged care services. Until then, the collection of both self and proxy reports as complementary measures is indicated.

Awareness for People With Alzheimer’s Disease: Profiles and Weekly Trajectories

Objective: To understand awareness and fluctuations of awareness in Alzheimer’s disease (AD), it is fruitful to consider the objects of awareness, e.g., cognitive functioning or recognition of the disease, as well as the mechanisms and modes of expression underlying awareness. With a holistic and discourse-centered approach, we aimed to identify different awareness profiles and test whether these profiles were stable or whether transitions from one profile to another occurred over short time intervals.

Methods: Twenty-eight residents of nursing homes with a diagnosis of AD participated in four semistructured interviews at biweekly intervals. These interviews were cluster analyzed to determine profiles of awareness. A Markov chain was applied to model their fluctuation.

Results: Five awareness profiles were observed that differed in terms of objects and underlying processes. Awareness proved to be quite stable for four of the five profiles. Interindividual variability in awareness was also observed through numerous different trajectories that were identified.

Discussion: Self-awareness and disease awareness are characterized by profiles that vary subtly between individuals. Fluctuations in awareness underscore the need to employ assessment intervals that closely reflect daily life in institutions.

Awareness of Cognitive Decline in Patients With Alzheimer's Disease: A Systematic Review and Meta-Analysis

Background: Identifying a poor degree of awareness of cognitive decline (ACD) could represent an early indicator of Alzheimer's disease (AD). Objectives: (1) to understand whether there is evidence of poor ACD in the pre-dementia stages of AD; (2) to summarize the main findings obtained investigating ACD in AD; (3) to propose a conceptual framework. Data Sources: We searched Scopus, Pubmed, and the reference lists for studies published up to August 2020. Original research articles must report a measure of ACD and included individuals with AD dementia, or prodromal AD (or MCI), or being at risk for AD. Data Synthesis: All studies covering preclinical, prodromal, and AD dementia were systematically reviewed. We intended to perform a meta-analysis of empirical studies on preclinical AD or prodromal AD (or MCI), to compare ACD between clinical groups. Due to the paucity of literature on preclinical AD, meta-analysis was only possible for prodromal AD (or MCI) studies. Results: We systematically reviewed 283 articles, and conducted a meta-analysis of 18 articles on prodromal AD (or MCI), showing that ACD was not significantly different between patients with amnestic and non-amnestic MCI (SMD = 0.09, p = 0.574); ACD was significantly poorer in amnestic MCI (SMD = -0.56, p = 0.001) and mild AD (SMD = -1.39, p < 0.001) than in controls; ACD was also significantly poorer in mild AD than in amnestic MCI (SMD = -0.75, p < 0.001), as well as poorer than in non-amnestic MCI (SMD = -1.00, p < 0.001). We also discuss key findings on ACD in AD, such as its neural and cognitive correlates. Conclusions and Implications: We propose that patients may be complaining of their initial subtle cognitive changes, but ACD would soon start to decrease. The individual would show mild anosognosia in the MCI stage, and severe anosognosia in dementia. The evaluation of ACD (comparing self-report to cognitive scores or to informant-report) could be useful to guide the clinician toward a timely diagnosis, and in trials targeting early-stage AD.

Patient-Reported Outcome Measures to Inform Care of People With Dementia-A Systematic Scoping Review

BACKGROUND AND OBJECTIVES

Patient-reported outcome measures (PROMs) captures the patient's perspective regarding quality of life, daily functioning, symptom severity, and overall health, and how these may be impacted by health care or other interventions. PROMs are used in clinical quality registries (CQRs) for a number of diseases to assess the patient's perspective of the impact of clinical care on quality-of-life. This scoping review aimed to identify dementia-specific PROMs, determine how the PROMs are being used, and whether they are used within dementia registries.

RESEARCH DESIGN AND METHODS

Three electronic databases were searched using Medical Subject Heading terms for dementia, quality of life, and patient-reported outcomes. Data were extracted on the PROMs used and the methods and mode of administering the PROM.

RESULTS

Seven dementia-specific PROMs were identified, however none were used in a dementia registry. All the PROMs were used at the patient level to identify patient needs and health service impacts. Three PROMs were also used at a system level to examine difference in care models. The majority of the PROMs were administered via a researcher or clinician and were predominantly completed by a proxy.

DISCUSSION AND IMPLICATIONS

PROMs provide an opportunity for a patient with dementia to share experiences and perspectives of care. A number of dementia-specific PROMs exist, yet none are used in dementia registries and the majority of studies utilize PROMs via a proxy. The use of PROM for patients with dementia, particularly in the context of dementia registries, requires further exploration and consideration.

Domains of awareness in Alzheimer's disease: The influence of executive function

OBJECTIVE

Awareness is a developing area in dementia research and the evaluation of its domains has been increasingly included as part of care for people with Alzheimer's disease (PwAD). Our aim is to examine whether executive dysfunction is associated with awareness domains.

METHODS

A consecutive series of 75 people with mild-to-moderate Alzheimer's disease completed assessments about global cognitive function, executive functioning, and their awareness of disease. Their primary caregivers' dyad provided information about demographics, awareness of disease, dementia severity, neuropsychiatric symptoms, and functional status.

RESULTS

Different types of executive dysfunction were presented as a predictor for awareness of disease (cognitive flexibility, inhibitory control, and working memory), of emotional state (short-term memory and attention) and of social functioning and relationships (visuospatial organization, integrative functions, and abstract thinking). Awareness of cognitive functioning and health condition and of functional activity impairments exhibit only global cognitive function as a predictor.

CONCLUSIONS

Findings confirm some degree of independence between awareness domains. The importance of identifying differences in domains of awareness relies in the understanding of awareness as a clinical phenomenon in order to guide the management and support of PwAD and their caregivers.

Awareness in severe Alzheimer's disease: a systematic review

Objective: There is limited understanding about how people in the severe stages of Alzheimer's disease (AD) experience and demonstrate awareness. We synthesised all available evidence with the aim of understanding how awareness is preserved or impaired in severe AD and what evidence there is for different levels of awareness according to the levels of awareness framework.Method: A systematic search of the following databases: Embase, PsycINFO, MEDLINE and Web of Science was carried out. A narrative synthesis and analysis was conducted of all included studies. All studies were assessed for quality using the AXIS and CASP tools.Results: Our findings suggest that lower level sensory awareness is relatively maintained in severe AD. Findings for higher level awareness are variable and this may be related to the diversity of methods that have been used to explore awareness in these circumstances.Conclusion: Awareness is complex, heterogeneous and varies significantly between individuals. Environmental and contextual factors have a significant impact on whether awareness is observed in people with severe AD. Adaptation of the environment has the potential to facilitate the expression of awareness while education of caregivers may increase understanding of people with severe AD and potentially improve the quality of care that is received.

Understanding Alzheimer's disease as a disorder of consciousness

People with Alzheimer's disease (AD) demonstrate a range of alterations in consciousness. Changes in awareness of cognitive deficit, self-awareness, and introspection are seen early in AD, and dysfunction of awareness and arousal progresses with increasing disease severity. However, heterogeneity of deficits between individuals and a lack of empirical studies in people with severe dementia highlight the importance of identifying and applying biomarkers of awareness in AD. Impairments of awareness in AD are associated with neuropathology in regions that overlap with proposed neural correlates of consciousness. Recent developments in consciousness science provide theoretical frameworks and experimental approaches to help further understand the conscious experience of people with AD. Recognition of AD as a disorder of consciousness is overdue, and important to both understand the lived experience of people with AD and to improve care.

Value of Personalized Dementia-Specific Quality of Life Scales: An Explorative Study in 3 European Countries

Measuring Quality of Life (QOL) can be difficult due to its individual character. To explore the value of personalized QOL measurement for people with dementia, personalized versions of two dementia-specific QOL scales (Dementia quality of Life (DQoL) and Quaility of Life in Alzheimer's Disease (QoL-AD)) were constructed. This study investigated whether the personalized measures are more valid to detect variations in QOL than their standard versions for people with mild to moderate dementia, with sufficient internal consistency. Moreover, the relationship between the personalized QOL measures and severity of dementia was investigated. Finally, the study explored the differences between countries regarding the personalized overall QOL and differences in the importance of QOL domains. This explorative one-group design study used baseline data from the MEETINGDEM study into the implementation of the Meeting Centres Support Programme in Italy, Poland and the UK. The personalized versions of the DQoL and QoL-AD were reliable, but not more valid than their standard versions. No relationship between severity of dementia and personalized QOL was found. While no differences were found between countries for the overall QOL score, some QOL domains were valued differently: people with dementia from the UK rated self-esteem, mood, physical health, energy level and the ability to do chores around the house significantly less important than people from Italy and Poland. The personalized versions of the DQoL and QoL-AD may offer dementia care practice important insights into what domains contribute most to an individual's QOL.

Antonovsky's sense of coherence and resistance resources reduce perception of burden in family carers of people with Alzheimer's disease

Objectives: Taking care of people with dementia (PWD) has been associated with some degree of burden. The variability of the carer's burden can be partially explained by their personal characteristics. Antonovsky's model of health defined the resistance resources (RRs) as essential mechanisms to cope with stressors, and to shape the personal sense of coherence (SOC). This study identifies the RRs related with carer's SOC, and their implications in the perception of burden in family dementia carers.Methods: A sample of 308 participants from the 'SOC & DEM study' (154 carers and 154 PWD) was recruited from two memory clinics. Carer's personal characteristics of burden, SOC, self-efficacy, coping strategies, perceived social support, and depression were evaluated using standardized instruments. PWD's degree of dependence and behaviour and psychological symptoms of dementia (BPSD) were assessed too. A path analysis was used to test the relationship between caregiver burden and SOC including the personal RRs of the carers and clinical data of PWD.Results: The path model identified SOC as a major factor related to carer's burden perception (r = -.327). Self-efficacy (r = .285), two coping strategies, 'use instrumental support' (r = -.235) and 'behavioural disengagement' (r = -.219), and social support perceived (r = .304) were the main carer's personal characteristics directly related with SOC. Caring experience (r = -.281) was the main carer factor related with burden while dependence (r = .156) and BPSD (r = .157) were the dementia factors.Conclusion: The SOC has previously related with carer's burden. The results contributed to identify relevant and modifiable personal characteristics as RRs that could reduce this burden.

Untreated depressive symptoms significantly worsen quality of life in old age and may lead to the misdiagnosis of dementia: a cross-sectional study

BACKGROUND

Several studies demonstrated the role of depressive mood and cognitive impairment in the background of elevated mortality and decreased Quality of Life (QoL) in old age. Our aim was to assess depressive and cognitive symptoms among older people in order to determine if those are recognized and treated or not, to elucidate the association between them and to investigate their impact on QoL.

METHODS

In the framework of the ICT4Life project self-administered questionnaires and clinical screening tools were used to assess QoL, depressive symptoms and cognitive functions of 60 older persons over the age of 65.

RESULTS

Males found to be depressed (53.8 vs. 40.4%) and cognitively declined (53.8 vs. 48.9%) more frequently; and had higher scores on the depression (6.85 vs. 5.32) and lower on the QoL (47.38 vs. 50.19) scales. Depressed older persons had lower cognitive levels (24.39 vs. 21.52) and their QoL was significantly poorer (53.97 vs. 43.85) than that of the non-depressed subjects. Depressive symptoms were detected in almost half of the older adults (43.9%), and the majority (80.77%) did not receive antidepressant medication.

CONCLUSIONS

Depressive and cognitive symptoms found to be common among older people, but were not recognized and treated in most cases. Close correlation between depression and cognitive impairment was also confirmed, as well as the key role of depression in the background of pseudo-dementia and QoL decline. Early recognition of depressive symptoms is important not only to treat the underlying mood disorder, but also to improve QoL of older persons.

Quality of life and factors affecting it in patients with Alzheimer's disease: a cross-sectional study

Background

Quality of life (QoL) is a growing area of interest in dementia research. However, it remains a controversial topic. This study aimed to determine the QoL of people with Alzheimer’s disease (PwAD) and investigate the factors affecting patients’ and caregivers’ QoL scores.

Methods

A cross-sectional study design was used. A total of 98 home-dwelling PwADs and their primary caregivers were recruited in the study. Sociodemographic characteristics and QoL scores, activities of daily living (ADL) and instrumental ADL (IADL), Mini-mental State Examination (MMSE) scores, neuropsychiatric inventory (NPI), and NPI–distress were determined to assess the relevant outcomes. All statistical analyses were performed using SPSS version 22.0. Descriptive statistics, t-test, Pearson correlation, and multinomial regression were used for analysis.

Results

The patients’ ratings of their QoL were higher than those of the caregivers. Caregiver education, patients’ ADL, and IADL were associated with the patients’ score on the Quality of Life in Alzheimer’s Disease (QoL-AD) scale. In addition to these variables, MMSE, NPI, and NPI–distress were associated with the caregiver scores on QoL-AD.

Conclusion

From a clinical point of view, the proxy-rated scores of QoL cannot replace the self-ratings of the patients. This study suggests that both self- and proxy-rated QoL scores should be applied whenever possible. Focusing on the management of behavioral problems and supporting functionality and cognitive functions may be modifiable factors that may represent targets for intervention to improve the QoL. The findings of this study should also be used to design caregiver educational programs about the determinants of QoL.

The impact of depressive mood and cognitive impairment on quality of life of the elderly

BACKGROUND

The quality of life (QOL) of the elderly can be influenced by numerous factors. We assessed QOL, cognitive functions, depression and clinical data in elderly aged 65 and over with the aim of analysing factors affecting their QOL.

METHODS

Semi-structured interviews were conducted with elderly over the age of 65, and their QOL, cognitive functions and depressive symptoms were assessed by validated clinical tests and screening tools.

RESULTS

The correlation between QOL scales and cognitive tests was not significant. In contrast, the results of depression scales showed significant negative correlation with the scores of the QOL scales. A better QOL was determined by lower age, lack of depressive symptoms, and higher scores in the QOL-AD (Alzheimer's disease) scale. Depressive mood has much more negative impact on the QOL of the elderly than cognitive impairment.

CONCLUSIONS

Our results demonstrated a close correlation between QOL and depressive mood in the elderly. The early detection and effective management of affective and cognitive symptoms in the elderly can not only restore mental health but may also improve their QOL.

Predictors of Perceived Social Support for Patients with Dementia: A Mixed-Methods Study

Purpose

Perceived social support (PSS) is closely linked to health outcomes in dementia patients. However, its continuous benefits are unclear. This mixed-methods study examined the impact of social support perceptions and differentiation among patients and carers during disease progression.

Patients and Methods

Persons with dementia (PWDs), family caregivers, and community family physicians were recruited from nine community health centers. Semi-structured interviews conducted with 12 PWDs (7 PWDs in mild dementia and 5 in moderate dementia), 12 family caregivers, and 6 community family physicians and conventional content analysis were used to explore social support perspectives at different dementia stages. A total of 470 PWDs were divided into mild (n=224), moderate (n=190), and severe (n=56) groups. Demographic, physical, and psychological factors related to PSS were examined by the group using multiple regression analysis. The group-based characteristics were entered into three prediction models.

Results

In the qualitative study, three themes of social support were identified: two viewpoints refer to social support; different needs and preferences in each stage; non-personalized support services. Quantitatively, the mild group scored lowest in perceived social support, while the severe group scored highest (χ²=64.70, P<0.001). The mild group PSS was predicted by depression (β=−0.07, P=0.04), cognitive capacity (β=−0.18, P<0.001), and instrumental ability (β=−0.78, P<0.001), which differed from the moderate and severe groups.

Conclusion

This study provided comprehensive insight into PSS from PWDs’ perspective at different stages of the disease. Results indicated the need for a stratified care approach and direction for further research on intervention.

Factors associated with self- and informant ratings of quality of life, well-being and life satisfaction in people with mild-to-moderate dementia: results from the Improving the experience of Dementia and Enhancing Active Life programme

BACKGROUND

a large number of studies have explored factors related to self- and informant ratings of quality of life in people with dementia, but many studies have had relatively small sample sizes and mainly focused on health conditions and dementia symptoms. The aim of this study is to compare self- and informant-rated quality of life, life satisfaction and well-being, and investigate the relationships of the two different rating methods with various social, psychological and health factors, using a large cohort study of community-dwelling people with dementia and carers in Great Britain.

METHODS

this study included 1,283 dyads of people with mild-to-moderate dementia and their primary carers in the Improving the experience of Dementia and Enhancing Active Life study. Multivariate modelling was used to investigate associations of self- and informant-rated quality of life, life satisfaction and well-being with factors in five domains: psychological characteristics and health; social location; capitals, assets and resources; physical fitness and health; and managing everyday life with dementia.

RESULTS

people with dementia rated their quality of life, life satisfaction and well-being more highly than did the informants. Despite these differences, the two approaches had similar relationships with social, psychological and physical health factors in the five domains.

CONCLUSION

although self- and informant ratings differ, they display similar results when focusing on factors associated with quality of life, life satisfaction and well-being. Either self- or informant ratings may offer a reasonable source of information about people with dementia in terms of understanding associated factors.

Differences in Awareness of Disease Between Young-onset and Late-onset Dementia

INTRODUCTION

Awareness of disease is the ability to acknowledge changes caused by deficits related to the disease process. We aimed to investigate whether there are differences in awareness of disease between young-onset dementia (YOD) and late-onset dementia (LOD) and examined how awareness interacts with cognitive and clinical variables.

MATERIALS AND METHODS

Using a cross-sectional design, 49 people with YOD and 83 with LOD and their caregivers were included. We assessed awareness of disease, cognition, functionality, stage of dementia, mood, neuropsychiatric symptoms, and caregivers' quality of life (QoL) and burden.

RESULTS

We found that people with YOD were more aware of the disease than people with LOD (P<0.005). Multivariate linear regression revealed that higher impairment in functional level was associated with unawareness in both groups (YOD=P<0.001; LOD=P<0.001). In the YOD group, preserved awareness was related to worse self-reported QoL (P<0.05), whereas, in LOD, deficits in awareness were related to caregivers' worst perceptions about people with dementia QoL (P<0.001).

CONCLUSIONS

The findings highlight the distinct nature of awareness between YOD and LOD. The YOD group had higher levels of disease awareness compared with the LOD group, even though the first group had a greater impairment in functionality.

Translational Aspects of the Multidisciplinary Study of Metacognition

Metacognition, self-awareness, self-knowledge, and insight each refer to the process by which individuals reflect upon and appraise their own abilities. Self-awareness is a complex, dynamic, and multifactorial construct that spans various domains such as motor, sensory, functional and cognitive abilities. Various disciplines including cognitive psychology, neuropsychology, psychiatry and neurology have attempted to understand healthy and pathologic self-awareness of cognition in particular. Although intrinsically connected, the study of healthy and pathologic states of self-awareness have remained relatively discrete from one another. Indeed, different disciplines examining self-awareness of cognition have operationalized and measured awareness through distinct theoretical frameworks. More recently, however, various authors have attempted to bridge constructs across disciplines in an effort to develop a unitary theoretical model for self-awareness of cognitive abilities. In this commentary, we summarize the study of self-awareness of cognitive abilities across various disciplines, highlighting translational aspects between them.

Factor structure of the Japanese version of the Quality of Life in Alzheimer's Disease Scale (QOL-AD)

BACKGROUND

The Quality of Life in Alzheimer's Disease Scale (QOL-AD) developed by Logsdon et al. in1999 is believed to be useful for evaluating responses from both patients and their caregivers. We previously confirmed both the reliability and the validity of the Japanese version of the QOL-AD. However, the factor structure of this scale should be confirmed because the QOL-AD covers multiple facets of dementia patients' lives. Thus, we performed a factor analysis of the Japanese QOL-AD. Then, we examined the correlations between each of the identified QOL factor scores and the results of other scales.

METHODS

The Japanese version of the QOL-AD was given to 132 AD patients and 132 caregivers. Four other tests were also performed at the same time: the Mini-Mental State Examination, the Neuropsychiatric Inventory (NPI), the Hyogo Activities of Daily Living Scale (HADL), and the Short Memory Questionnaire. A factor analysis using Varimax rotation was used to examine the dimensions underlying the QOL-AD. In addition, we examined the Pearson correlations between each of the identified QOL factor scores and the results of the other four tests.

RESULTS

Factor analyses of both versions of the Japanese QOL-AD (both the patients' and the caregivers' responses) revealed three factors that were named 'psychological wellbeing', 'human relationships', and 'physical and social environment'. The 'psychological wellbeing' factor was significantly correlated with the Mood factor of the NPI. The 'human relationships' factor was significantly correlated with the Psychosis factor of the NPI. The 'physical and social environment' factor was significantly correlated with the HADL.

CONCLUSIONS

Both the patients' and the caregivers' responses to the Japanese version of the QOL-AD were composed of three factors: 'psychological wellbeing', 'human relationships', and 'physical and social environment'. The present results support the multi-domain concept of QOL proposed by Lawton.

Change in quality of life and potentially associated factors in patients receiving home-based primary care: a prospective cohort study

Background

The trajectories for health-related quality of life of patients receiving home-based primary care are not well identified. Our objective was to investigate changes in the quality of life (QOL) and factors that affected the QOL of patients receiving home-based primary care.

Methods

Our prospective cohort study, the Observational study of Nagoya Elderly with HOme MEdical (ONE HOME) study, recruited 184 patients undergoing home-based primary care with a 5-year follow-up period. Patients’ demographic data, socioeconomic status, physical diseases, medication use, feeding intake status, nutritional status, and functional status were measured annually. The 4-item quality of life index (QOL-HC [home care]) including self-perceived and family-reported QOL ratings that had been developed and previously validated in home care settings was used. Linear regression models were used for cross-sectional and longitudinal analyses.

Results

The participants’ mean age was 78.8 ± 10.8 years, and 55.9% of the sample was male. Most patients were frail, disabled, and/or malnourished. Self-perceived and family-reported QOL scores dropped sequentially on annual follow-ups. In the multivariate longitudinal analysis, patients who were divorced (β = 1.74) had high baseline QOL scores (β = 0.75) and reported higher QOL ratings. In addition, high functional dependency was associated with a low self-perceived QOL rating, with a β-value of − 1.24 in the pre-bedridden group and − 1.39 in the bedridden group. Given the family-reported QOL rating, the baseline QOL scores (β = 0.50) and Mini-Nutritional Assessment–Short-Form scores (β = 0.37) were found to have positive associations with the QOL rating.

Conclusions

For the disabled receiving home-based primary care, independent functional status and divorce were positively associated with better self-perceived QOL, whereas nutritional status was correlated with better family-reported QOL.

Longitudinal changes in quality of life among elderly people with and without dementia

ABSTRACTObjective:To study longitudinal changes in the quality of life (QoL) in persons with and without dementia, and explore the factors associated with baseline QoL and changes of QoL over the follow-up period.

DESIGN

Prospective longitudinal study.

SETTING

Data were collected from 17 municipalities in Norway in the period from January 2009 to August 2012. A total of 412 persons were included, 254 (61.7 %) persons without dementia and 158 (38.3 %) with dementia at baseline.

SUBJECTS

Persons 70 years of age or older, receiving municipal care services. Main outcome measures include the following: self-rated and proxy-rated QoL over a period of 18 months, cognitive status, functional status, neuropsychiatric symptoms, and demographics.

RESULTS

Longitudinal changes in QoL were small, despite changes in clinical variables. Proxy ratings of patients QoL were lower than the patients' own ratings. Belonging to a group with low QoL trajectory was associated with symptoms of depression, reduced physical and instrumental functioning, and more severe dementia.

CONCLUSION

Patients and proxies evaluated the patients' QoL differently and QoL did not necessarily correspond with deterioration in clinical parameters. To prevent impaired QoL, we need to address identified factors and keep an approach open to the individual perceptions of QoL.

Cognitive functioning and quality of life: Diverging views of older adults with Alzheimer and professional care staff

OBJECTIVE

Staff ratings of quality of life (QOL) in dementia are often lower and more strongly related to the cognitive functioning of the person with dementia than self-ratings. However, cognition-related items in QOL measures and limited cognitive screening measures hamper a clear understanding of the relationship, 2 issues we addressed in the current study.

METHODS

We collected data of 88 pairs of older adults with Alzheimer disease and their professional caregivers in 9 residential care settings. Both self-report and staff report of the QOL of residents were assessed with the Quality of Life in Alzheimer's Disease. Cognitive functioning was assessed with the Mini-Mental State Examination and a battery of specific cognitive measures.

RESULTS

Intraclass correlations and a paired sample t test confirmed a discrepancy between self-rating and staff rating, with staff significantly underestimating QOL as experienced by the resident. After removing the possibly confounding memory item of the Quality of Life in Alzheimer's Disease, Mini-Mental State Examination score remained a significant predictor of staff ratings but not self-ratings in regression analyses. Exploratory analyses of specific cognitive measures showed a significant contribution of a memory test of intentional visual association learning in the prediction of staff-rated QOL.

CONCLUSIONS

Staff reports cannot simply substitute reports of the subjective experience of residents with Alzheimer, so both judgments should be taken into account to form an adequate picture of QOL. Staff might be guided more strongly by a cognitive point of view when evaluating QOL of residents with Alzheimer disease, while the latter might have shifted their evaluation standards to cope adequately with the challenges posed by their disease.

Inter-rater agreement of the Quality of Life-Alzheimer's Disease (QoL-AD) self-rating and proxy rating scale: secondary analysis of RightTimePlaceCare data

BACKGROUND

To assess the quality of life of people with dementia, measures are required for self-rating by the person with dementia, and for proxy rating by others. The Quality of Life in Alzheimer's Disease scale (QoL-AD) is available in two versions, QoL-AD-SR (self-rating) and QoL-AD-PR (proxy rating). The aim of our study was to analyse the inter-rater agreement between self- and proxy ratings, in terms of both the total score and the items, including an analysis specific to care setting, and to identify factors associated with this agreement.

METHODS

Cross-sectional QoL-AD data from the 7th Framework European RightTimePlaceCare study were analysed. A total of 1330 cases were included: n = 854 receiving home care and n = 476 receiving institutional long-term nursing care. The proxy raters were informal carers (home care) and best-informed professional carers (institutional long-term nursing care). Inter-rater agreement was investigated using Bland-Altman plots for the QoL-AD total score and by weighted kappa statistics for single items. Associations were investigated by regression analysis.

RESULTS

The overall QoL-AD assessment of those with dementia revealed a mean value of 33.2 points, and the proxy ratings revealed a mean value of 29.8 points. The Bland-Altman plots revealed a poor agreement between self- and proxy ratings for the overall sample and for both care settings. With one exception (item 'Marriage' weighted kappa 0.26), the weighted kappa values for the single QoL-AD items were below 0.20, indicating poor agreement. Home care setting, dementia-related behavioural and psychological symptoms, and the functional status of the person with dementia, along with the caregiver burden, were associated with the level of agreement. Only the home care setting was associated with an increase larger than the predefined acceptable difference between self- and proxy ratings.

CONCLUSIONS

Proxy quality of life ratings from professional and informal carers appear to be lower than the self-ratings of those with dementia. QoL-AD-SR and QoL-AD-PR are therefore not interchangeable, as the inter-rater agreement differs distinctly. Thus, a proxy rating should be judged as a complementary perspective for a self-assessment of quality of life by those with dementia, rather than as a valid substitute.

Association of Lower Spiritual Well-Being, Social Support, Self-Esteem, Subjective Well-Being, Optimism and Hope Scores With Mild Cognitive Impairment and Mild Dementia

Introduction: Positive psychology (PP) constructs contribute significantly to a better quality of life for people with various diseases. There are still few studies that have evaluated the evolution of these aspects during the progression of dementia. Objective: To compare the scores for self-esteem, life satisfaction, affect, spirituality, hope, optimism and perceived support network between elderly people with mild cognitive impairment (MCI), mild dementia and moderate dementia and control group. Methods: Cross-sectional study. The sample consisted of 66 healthy controls, 15 elderly people with MCI, 25 with mild dementia and 22 with moderate dementia matched by age, gender, and schooling. The instruments used were: Spirituality Self Rating Scale (SSRS), Rosenberg Self-Esteem Scale, Medical Outcomes Study's Social Support Scale, Life Satisfaction Scale (LSS), Positive and Negative Affect Schedule (PANAS), Revised Life Orientation Test (LOT-R), and Adult Dispositional Hope Scale (ADHS). Results: The scores for spiritual well-being, social support, self-esteem, life satisfaction, positive affect, optimism, negative affect, and hope differed significantly between the groups (p < 0.05). The individuals with MCI and mild dementia had lower spiritual well-being, social support, self-esteem, life satisfaction, positive affect, optimism and hope scores, and higher negative affect scores compared with the controls. The scores for PP constructs did not differ between the group of people with moderate dementia and the control group. Conclusion: Dementia was found to impact several PP constructs in the early stages of the disease. For individuals with greater cognitive impairment, anosognosia appears to suppress the disease's impact on these constructs.

How Different are Quality of Life Ratings for People with Dementia Reported by Their Family Caregivers from Those Reported by the Patients Themselves?

BACKGROUND

Measurements of patient quality of life (QoL) play a major role in the management of dementia.

OBJECTIVE

We investigated the self-proxy discrepancy of QoL ratings in the elderly and the impact of dementia severity on the discrepancy.

METHODS

QoL of 718 patients with dementia and 651 non-demented elderly were rated by themselves and their caregivers (CG) using the Quality of Life-Alzheimer's Disease (QoL-AD). The impact of the rater on the total and item scores of QoL-AD was analyzed using repeated measures ANOVA and differential response patterns between self and proxy were analyzed using differential item functioning (DIF) analysis.

RESULTS

Self-rated scores were higher than CG-rated scores in all diagnostic groups. The interaction between rater and diagnostic group was significant in total QoL-AD score and 5 item scores ('memory', 'marriage', 'chores around the house', 'do things for fun', and 'life as a whole'). The strength of the DIF increased with advancing dementia in these items.

CONCLUSION

Self-proxy rating discrepancy of QoL was influenced by the presence and severity of dementia only in five items.

Cross domain self-monitoring in anosognosia for memory loss in Alzheimer's disease

Anosognosia for memory loss is a common feature of Alzheimer's disease (AD). Recent theories have proposed that anosognosia, a disruption in awareness at a global level, may reflect specific deficits in self-monitoring, or local awareness. Though anosognosia for memory loss has been shown to relate to memory self-monitoring, it is not clear if it relates to self-monitoring deficits in other domains (i.e., motor). The current study examined this question by analyzing the relationship between anosognosia for memory loss, memory monitoring, and motor monitoring in 35 individuals with mild to moderate AD. Anosognosia was assessed via clinical interview before participants completed a metamemory task to measure memory monitoring, and a computerized agency task to measure motor monitoring. Cognitive and psychological measures included memory, executive functions, and mood. Memory monitoring was associated with motor monitoring; however, anosognosia was associated only with memory monitoring, and not motor monitoring. Cognition and mood related differently to each measure of self-awareness. Results are interpreted within a hierarchical model of awareness in which local self-monitoring processes are associated across domain, but appear to only contribute to a global level awareness in a domain-specific fashion.

The Longitudinal Association Between a Discrepancy Measure of Anosognosia in Patients with Dementia, Caregiver Burden and Depression

BACKGROUND

According to cross-sectional studies, there is an association between anosognosia in people with dementia and caregiver's burden and depression. Anosognosia in patients may be a cause of caregiver burden and depression. However, variability in caregiver anosognosia ratings may exist as caregivers with burden and depression may have a more pessimistic view of the patients' health.

OBJECTIVE

To assess the variability of caregiver anosognosia ratings of patients with dementia using a widely used anosognosia scale and its longitudinal relationship with caregiver burden and depression.

METHODS

A convenience cohort of 221 consecutive dementia outpatient and caregiver dyads was followed up at 12 and 24 months. The main instruments used were the Anosognosia Questionnaire-Dementia (AQ-D), Caregiver Burden Interview, and Geriatric Depression Scale. Linear mixed models were used including time as a factor in every model. Multivariate analyses controlled for caregiver's socio-demographic and possible confounding factors.

RESULTS

Attrition at 12 and 24 months was 24.9% and 42.5% respectively. Patients at baseline were on average 77.8 years of age, 63.3% were women, and 63.3% had < 5 years of education. In the bivariate analyses, caregiver burden, depression, and gender were associated with caregiver ratings of total, cognitive, and personality AQ-D of the patient at different time points. Multivariate analyses revealed burden as the caregiver variable most consistently associated with total, cognitive, and personality caregiver AQ-D ratings of the patient.

CONCLUSION

Some caregiver characteristics, especially burden, are associated with caregiver ratings of AQ-D with regard to the patient.

[Self- and informant-rating mood scales applied in elderly persons with Alzheimer's dementia, with or without a language disorder]

INTRODUCTION

Alzheimer's Dementia (AD) may be associated with symptoms of depression. In AD, problems of language expression or understanding will arise sooner or later. The aim of this study was to determine whether elderly persons with AD, with or without a language disorder, experience difficulties understanding and answering mood related questions. In addition to this, it was our object to test the validity of the answers of nurses as informants, on the mood of an elderly client.

METHODS

53 elderly persons, living in care homes, and their nurses, took part in the study. 25 participants had been diagnosed with Alzheimer's disease, 28 participants had no cognitive impairment. Language skills were tested using the SAN-test (Stichting Afasie Nederland) and subtests of the Aachen Aphasia Test (AAT). Mood was assessed with the Beck Depression Inventory-second edition (BDI-II-NL) and the Geriatric Depression Scale (GDS-30).

RESULTS

There were no significant differences in scores on the mood related questionnaires between participants without cognitive impairment and participants with Alzheimer's disease, with or without a language disorder. The correlation between self- and informant-rating was very limited. In general, nurses reported more depressive symptoms than the elderly persons did themselves. Disparities between self- and informant-ratings varied from informant scores overestimating low self-ratings of depression to informant scores underestimating high self-ratings.

CONCLUSION

Alzheimer's disease, whether or not it is complicated by a language disorder, does not disturb the normal score distribution on either test (BDI or GDS). This means that elderly persons with Alzheimer's disease are capable of adequately answering questions related to their own mood. However, considerable discrepancies were found between observer- and self-ratings of emotional wellbeing. Therefore it is important to not only take into account the information of an informant when testing for depression, but also the elderly person's own assessment of their mood.

Subjective Age and Dementia

OBJECTIVE

Existing evidence indicates that a younger subjective age is a marker of successful aging, including better health and cognition. Building upon this evidence, it is likely that individuals with dementia might feel older. However, subjective evaluation of age might not be affected by dementia because these individuals tend to be anosognosic and report positive health-related quality of life.

METHODS

Data from two cross-sectional samples from France and the United States were used to compare the subjective age ratings of individuals with and without dementia.

RESULTS

Results from both samples revealed that individuals with dementia felt younger than their age but did not differ from the controls, even after controlling for sex, chronological age, education, and self-rated health.

CONCLUSION

The present study suggests that there are no large differences in the subjective experience of age between healthy individuals and those with dementia.

Health-Related Quality of Life in Patients with Alzheimer's Disease in Different German Health Care Settings

The purpose of this study is to evaluate the health-related quality of life (HrQoL) of patients with Alzheimer's disease (AD) in different care settings (institutionalized versus community-dwelling) across all severity stages of dementia. Patients were consecutively recruited with their primary caregivers (123 inpatients and 272 outpatients), and the impact of patient-related parameters such as behavioral and psychological symptoms of dementia (BPSD) (Geriatric Depression Scale [GDS] and Neuropsychiatric Inventory [NPI]) and functional capacity (Alzheimer's Disease Cooperative Study-Activities of Daily Living [ADCS-ADL]) on HrQoL was analyzed. Patients' HrQoL was assessed using self-reported and caregiver-rated generic (EuroQoL Instrument) and dementia-specific (Quality of Life-Alzheimer's Disease [Qol-AD]) scales. Patients reported a considerably higher HrQoL than their caregivers on the QoL-AD, EQ-5D, and EQ VAS (p <  0.001). Different dementia severity groups showed significantly worse results in HrQoL for patients with lower MMSE scores. The mean self-reported QoL-AD decreased from 32.3±5.7 in the group with the highest MMSE scores to 27.1±5.5 in patients with the lowest MMSE scores (p <  0.001). A considerably lower HrQoL was shown for institutionalized patients versus participants in outpatient settings (proxy-rated QoL-AD 19.7±4.6 versus 26.0±7.1, p <  0.001). Depressive symptoms (GDS), BPSD (NPI), and reduced functional capacity (ADCS-ADL) were evaluated for their impact on patients' HrQoL. Multivariate models explained between 22% and 54% of the variance in patients' HrQoL. To analyze the causative direction of the reported associations, further longitudinal studies should be conducted.

Characteristics Associated with Quality of Life in Long-Term Care Residents with Dementia: A Cross-Sectional Study

BACKGROUND

To determine which characteristics are associated with quality of life (QOL) in residents with moderate to very severe dementia in long-term care facilities (LTCFs).

MATERIAL AND METHODS

This was a cross-sectional analysis of a cluster randomized controlled study in 12 Dutch LTCFs that enrolled 288 residents, with moderate to severe dementia assessed with the Reisberg Global Deterioration Scale (Reisberg GDS) and QOL with the QUALIDEM. Characteristics that were hypothesized to be associated with the six domains of QOL (applicable to very severe dementia) included demographic variables, activities of daily living (Katz ADL), cognitive performance (Cognitive Performance Scale; CPS), pain (Pain Assessment Checklist for Seniors with Limited Ability to Communicate; PACSLAC-D), neuropsychiatric symptoms (Neuropsychiatric Inventory-Nursing Home Version; NPI-NH) and comorbidities.

RESULTS

Multivariate logistic regression modelling showed associations with age in the domain Social isolation [odds ratio, OR, 0.95 (95% confidence interval, CI, 0.91-0.99)], ADL level in the domain Positive affect [OR 0.89 (95% CI 0.83-0.95)] and the domain Social relations [OR 0.87 (95% CI 0.81-0.93)], severity of dementia in the domain Social relations [OR 0.28 (95% CI 0.12-0.62)] and in the domain Social isolation [OR 2.10 (95% CI 1.17-3.78)], psychiatric disorders in the domain Positive affect [OR 0.39 (95% CI 0.17-0.87)] and pulmonary diseases in the domain Negative affect [OR 0.14 (95% CI 0.03-0.61)] of the QUALIDEM. Neuropsychiatric symptoms were independently associated with all six domains of the QUALIDEM [OR 0.93 (95% CI 0.90-0.96) to OR 0.97 (95% CI 0.95-0.99)]. Pain was associated with the domains Care relationship [OR 0.92 (95% CI 0.84-1.00)] and Negative affect [OR 0.92 (95% CI 0.85-1.00)].

CONCLUSION

QOL in dementia is independently associated with age, ADL, dementia severity, pain, psychiatric disorders, pulmonary diseases and neuropsychiatric symptoms. It is possible to detect persons with dementia at risk for a lower QOL. This information is important for developing personalized interventions to improve QOL in persons with dementia in LTCFs.

A revised interview for deterioration in daily living activities in dementia reveals the relationship between social activities and well-being

Background:

The ability to perform instrumental activities of daily living deteriorates early in dementia and affects people with dementia and their carers. However, little is known about individual instrumental activities of daily living impairments. This study therefore investigated instrumental activities of daily living deficits in mild dementia by exploring the relationship between instrumental activities of daily living initiative and performance and general cognition, people with dementia quality of life and carer stress. Moreover, this study explored the contribution of social instrumental activities of daily livings, which to date have received little or no attention.

Methods:

Twenty carers were administered a revised Interview for Deterioration for Daily Living Activities in Dementia and measures of carer stress (General Health Questionnaire-12) and quality of life in dementia (Quality of Life in Alzheimer’s Disease). The people with dementia completed measures of general cognition (Mini-Mental State Examination and Montreal Cognitive Assessment). Data were analysed using frequency and bivariate correlation analyses and basic thematic analysis was employed to the qualitative data on carer stress.

Results:

Carer interviews showed that instrumental activities of daily living impairments were associated more with performance than with initiative deficits. Increased social isolation and reluctance to engage in hobbies were particularly stressful to carers and impacted negatively on the people with dementia quality of life, yet were not reported as critical in the qualitative assessment.

Conclusions:

This study shows that people with mild dementia are impaired to different degrees on their initiative and performance of instrumental activities of daily livings and that impairments relating to social activities particularly relate to well-being. The revised Interview for Deterioration for Daily Living Activities in Dementia with its social instrumental activities of daily livings can help shift the focus of interventions to address those activities that are frequently impaired in mild dementia and relate to people with dementia and carer well-being.

Concepts and objects of awareness in Alzheimer’s disease: an updated systematic review

ABSTRACT Objectives To compare and discuss the objects of awareness in Alzheimer’s disease (AD): awareness of cognitive deficits, of functional activities, of social-emotional functioning and behavioral impairment. Methods A search in the PsycINFo, Pilots, PubMed/Medline and ISI electronic databases according to Prisma methodology was performed. We included studies about awareness in people with AD published between 2010 and 2015, with the combination of keywords: “Alzheimer AND awareness of deficits”, “Alzheimer AND anosognosia”, “Alzheimer AND insight”, “dementia AND awareness of deficits”, “dementia AND anosognosia”, “dementia AND insight”. The articles were categorized according to the specific object of awareness. Results Seven hundred and ten records were identified and, after application of the exclusion criteria, 191 studies were retrieved for potential use. After excluding the duplicates, 46 studies were included. Most studies assessed the cognitive domain of awareness, followed by the functional, social-emotional, and behavioral impairment domains. Memory deficits were not sufficient to explain impaired awareness in AD. Longitudinal studies did not find discrepancies between patients and caregivers’ reports, indicating that awareness is not related to cognition. Conflicting findings were observed, including the relation between awareness, mood, severity of disease, and personal characteristics. Conclusions The studies show lack of conceptual consensus and significant methodological differences. The inclusion of samples without differentiation of dementia etiology is associated to symptomatic differences, which affect awareness domains. Awareness in AD is a complex and multidimensional construct. Different objects elicit different levels of awareness.

Effects of anosognosia and neuropsychiatric symptoms on the quality of life of patients with Alzheimer's disease: a 24-month follow-up study

OBJECTIVES

Neuropsychiatric symptoms and anosognosia are known to influence the perceived quality of life of patients (QoL-p) with Alzheimer's disease (AD). This study analysed their impact on patient and caregiver ratings of QoL-p and how these ratings changed in relation to the severity of dementia.

METHODS

A baseline sample of 221 patients and caregivers was followed up over 24 months. Instruments: Neuropsychiatric Inventory (NPI), Anosognosia Questionnaire-Dementia (AQ-D), Quality of life-Alzheimer's Disease (QoL-AD) and the Global Deterioration Scale (GDS). Longitudinal data were analysed using generalized linear models.

RESULTS

In the multivariate analysis, greater anosognosia was always associated with higher ratings of QoL-p among patients, especially at 24 months (p < 0.001), and with more negative ratings among caregivers, especially at baseline (p < 0.001). A higher total NPI score was associated with a more negative rating of QoL-p among caregivers (p < 0.001), and it also had a smaller negative effect on patients' self-ratings (p = 0.001). The neuropsychiatric symptoms (NPI) associated with a more negative view of QoL-p were depression, for patients' self-ratings, and apathy and agitation for caregiver ratings. The discrepancy between patient and caregiver ratings increased in line with the severity of dementia.

CONCLUSION

Neuropsychiatric symptoms had a similarly negative effect on the QoL-p ratings of both patients and caregivers, whereas the effect of anosognosia differed according to the rater (positive for patients, negative for caregivers).

Quality of life in mild dementia: patterns of change in self and caregiver ratings over time

Objectives:

To determine changes over time in self and caregiver ratings of quality of life (QoL) in people with dementia (PwD) and to identify factors associated with changes in QoL ratings.

Methods:

In this longitudinal study, 69 people with mild Alzheimer’s disease and their caregivers were assessed at baseline and after 1 year. We examined the association of QoL ratings with the following variables at the two time points: awareness of disease, cognitive status, mood, functionality, neuropsychiatric symptoms, and caregiver burden. Multivariate regression analyses were conducted to examine the contribution of co-factors.

Results:

At baseline, PwD self-ratings of QoL were associated with caregiver ratings of PwD QoL (p = 0.001). Caregiver ratings were associated with PwD mood (p = 0.001) and self-rated QoL (p = 0.001). After 1 year, caregiver ratings of PwD QoL changed significantly (p = 0.049, d = -0.27), whereas PwD self-ratings did not (p = 0.89, d = 0.09). PwD awareness of disease changed significantly (p = 0.001) at 1 year, having declined in 25.4% and improved in 12.3% of participants. PwD QoL self-ratings were associated with caregiver ratings (p = 0.001). Caregiver ratings of PwD QoL after 1 year were associated with PwD mood (p = 0.029), self-reported QoL (p = 0.001), and awareness of disease (p = 0.033).

Conclusions:

The association between self and caregiver ratings of PwD QoL was maintained over 1 year. The primary factors accounting for the change in caregiver ratings were PwD mood and awareness of disease. QoL and cognitive impairment seem to be relatively independent in mild dementia.

Quality of life of institutionalized older adults by dementia severity

BACKGROUND

The goal of the study was to analyze the factors associated with quality of life (QoL) in institutionalized older adults with dementia, based on self and proxy ratings, and if these characteristics differ by dementia severity.

METHODS

Cross-sectional study of 525 people with dementia (PwD) and their caregivers (professional or family caregivers). Two different QoL questionnaires, leading to three measures, were used: QoL in Alzheimer's disease scale (QOL-AD), self and proxy-rated, and QoL in late-stage dementia scale (QUALID), proxy-rated. Multivariate linear regression models were tested for each QoL measure and for mild/moderate and severe stages of dementia.

RESULTS

Multiple regression analyses showed a significant association between the three QoL measures and depression. Functional ability was significantly associated with QoL when assessed by proxy. Other factors such as education level, leisure activities and frequency of visits were significantly related with QOL-AD by proxy. The associated factors that differed by dementia severity were education level for moderate dementia, and frequency of visits and who answered the questionnaire (professional vs. family member) for severe dementia.

CONCLUSIONS

QoL was consistently associated with depressive symptoms independently of the measures as well as functional ability and social leisure activities when the QoL questionnaire was rated by proxy. Treating depressive symptoms, increasing social activities and maintaining the functional ability may decrease the deterioration of QoL in institutionalized older adults with dementia.

The Italian validation of the Anosognosia Questionnaire for Dementia in Alzheimer's disease

Although the Anosognosia Questionnaire-Dementia (AQ-D) is one of the main instruments for assessing awareness in Alzheimer's disease (AD), the normative data were until now limited to people from Argentina and Japan. This study aims to validate this instrument in an European context, in particular in an Italian sample. In a multicenter project (Verona, Padova, and Trapani), 130 patients with AD and their caregivers participated in the study. Psychometric characteristics of AQ-D are confirmed indicating that the scale permits the early identification of anosognosia and the correct care management of patients. Indeed, anosognosia results to be present also in patients with very mild AD (moderate: 44.44%; mild: 47.17%; and very mild: 23.73%). Moreover, the results indicate that deficits in awareness may vary in severity and that different types of anosognosia may be identified.

The hypothalamus in Alzheimer's disease: a Golgi and electron microscope study

Alzheimer's disease (AD) is a progressive neurodegenerative disorder, characterized by irreversible decline of mental faculties, emotional and behavioral changes, loss of motor skills, and dysfunction of autonomic nervous system and disruption of circadian rhythms (CRs). We attempted to describe the morphological findings of the hypothalamus in early cases of AD, focusing our study mostly on the suprachiasmatic nucleus (SCN), the supraoptic nucleus (SON), and the paraventricular nucleus (PVN). Samples were processed for electron microscopy and silver impregnation techniques. The hypothalamic nuclei demonstrated a substantial decrease in the neuronal population, which was particularly prominent in the SCN. Marked abbreviation of dendritic arborization, in association with spinal pathology, was also seen. The SON and PVN demonstrated a substantial number of dystrophic axons and abnormal spines. Alzheimer's pathology, such as deposits of amyloid-β peptide and neurofibrillary degeneration, was minimal. Electron microscopy revealed mitochondrial alterations in the cell body and the dendritic branches. The morphological alterations of the hypothalamic nuclei in early cases of AD may be related to the gradual alteration of CRs and the instability of autonomic regulation.

Identifying the components of clinical vignettes describing Alzheimer's disease or other dementias: a scoping review

Background

Clinical vignettes are often used to elicit information about health conditions in research studies. This review summarizes the components of clinical vignettes describing Alzheimer’s disease (AD) or other dementias. The purpose is to provide recommendations for the development of standardized vignettes that may be used in future studies.

Methods

MEDLINE, EMBASE, PsycINFO, ASSIA, CINAHL were searched from their inception to June 2014. Primary English-language studies employing vignettes to describe AD or similar disorders (including other dementias and Parkinson’s disease) were included in the review. Included studies had to describe the content of the vignettes in the published manuscripts. The characteristics of the included studies and the vignettes were extracted in tabular form and summarized qualitatively.

Results

Forty-two studies were included in the review. Twenty-four of the studies contained at least one AD vignette, 11 had vignettes focusing on non-AD dementias, and seven contained vignettes describing conditions other than dementia. In total, 58 vignettes were obtained from the 42 included studies.

Conclusions

Key aspects to consider when constructing vignettes for AD or other dementias include writing the vignettes from a third-person perspective and presenting hypothetical patients as being at least 65 years of age. Researchers should develop standardized vignettes for use across studies.

Electronic supplementary material

The online version of this article (doi:10.1186/s12911-015-0179-x) contains supplementary material, which is available to authorized users.

Predictors of self- and caregiver-rated quality of life for people with dementia living in the community and in nursing homes in northern Taiwan

BACKGROUND

Factors affecting quality of life (QOL) ratings for people with dementia (PWD) have been well studied, but few studies have examined the effect of residence on PWD- and caregiver-rated QOL for PWDs. We designed this study to determine the factors related to PWD- and caregiver-rated QOL in dementia as well as factors related to the discrepancy in these ratings.

METHODS

For this cross-sectional study, we analyzed data from a convenience sample of 106 PWD-family caregiver dyads (58 community-dwelling dyads and 48 nursing-home dyads). PWDs' data included socio-demographic variables, QOL (assessed by the Quality of Life-Alzheimer's Disease [QOL-AD] scale), cognition, dementia severity, depression, comorbidities, and quality of the dyadic relationship. Caregivers' data included socio-demographic variables, depressive symptoms, and mutuality of the dyadic relationship.

RESULTS

QOL-AD scores were lower when rated by caregivers than by PWDs. The key factors positively related to both PWD- and caregiver-rated QOL for PWDs were fewer PWD depressive symptoms and higher quality of the PWD-caregiver relationship. The key factors related to the discrepancy in PWD- and caregiver-rated QOL in dementia were PWD residence in a nursing home and lower dementia severity, as well as higher caregiver depression, being an adult child caregiver, and lower caregiver-PWD mutuality.

CONCLUSION

Caregiver-rated QOL for PWDs and the discrepancy in rated QOL were significantly associated with PWD residence. If caregiver-rated QOL is needed, the effect of residence of PWD should be taken into consideration. Caregivers' depressive status and mutuality with PWD must be also carefully assessed.

Depressive symptomatology in severe dementia in a European sample: prevalence, associated factors and prescription rate of antidepressants

BACKGROUND

Depression is a common comorbid disorder of dementia. This study explores the prevalence of and factors associated with depressive symptomatology, and antidepressant prescription rates in severe dementia across eight European countries.

METHODS

In total, 414 people with severe dementia completed measures of cognition and quality of life (QoL), whilst carers completed proxy measures of activities of daily living (ADLs), depression, neuropsychiatric symptoms, QoL and comorbidity.

RESULTS

Findings indicated that 30% of the sample had depression, whilst the highest and lowest prevalence of depression was reported in Germany and Finland, respectively. Lower QoL, the presence of pain and more frequent neuropsychiatric symptoms were associated with depressive symptomatology, whilst no significant relationship between impairment of ADLs, comorbidity, and depression emerged. Spain and Estonia had the highest and lowest rates of antidepressant prescribing, respectively, whilst Germany had the highest discrepancy between depressive symptomatology and prescription.

CONCLUSIONS

The study highlights variations across countries in the prevalence of depressive symptomatology in severe dementia and prescription of antidepressants. Information about factors associated with depressive symptomatology may help to better identify and manage depression.

[Clinical presentation of Moroccan cases with Alzheimer's disease]

INTRODUCTION

The diagnostic approach for Alzheimer's disease is based on the presence of cerebral atrophy combined with the score of the mini-examination of the mental state. In this context, this study was conducted to assess the correlation between imaging and neuropsychological testing for cases of early-onset and late-onset Alzheimer's disease.

AIM OF THE STUDY

Analysis of the clinical and paraclinical aspects of Moroccan cases with Alzheimer's disease.

METHODS

Seventeen sporadic cases and 8 family cases were seen at the memory clinic of the Neurology Department of the University of Casablanca Ibn Rochd Hospital. A family history was obtained through a clinical interview of the patient and a yes or no self-reporting questionnaire from the guardian or other family member. The disease was considered familial if at least one additional first degree relative suffered from early-onset AD-type dementia. All patients underwent standard somatic neurological examination, cognitive function assessment, brain imaging and laboratory tests. Written consent was obtained from the patients and their guardians prior to the study.

RESULTS

In our study of 25 individuals, the observed mean age of AD patients was 64.52 ± 9.30 and we observed a slight female predominance (56% versus 44%). In addition, we found a prevalence of AD of approximately 20%, increasing with age, in the population below 60 years of age. Approximately half of our patients (48%) had a score lower than 10 and were affected by severe insanity, while 28% were affected by moderate severe insanity and 24% were light to moderately insane. Twenty-five patients underwent neuroimaging, 18 of whom were assessed by MRI, while 7 were assessed by CT. All patients had hippocampal atrophy, which progressed to affect others brain regions. The blood tests showed no abnormalities in the 25 enrolled AD cases.

DISCUSSION

Age is undoubtedly the main risk factor for AD; this is also the true for our cases where advanced age was responsible for the exponential increase of the disease's frequency; it reached a peak in the age group of 60-69 years. The AD diagnosis approach is based on the presence of cerebral atrophy combined with the score of the mini-examination of the mental state (MMSE). In our study, in addition to the MMSE, depending on the level of education, the clinician used other tests that do not necessarily require a level of education such as the BEC96, visual short-term or digital memory assessment, work memory assessment, language assessment test (DO80) and apraxia. Neuropsychological examination of the cases with a score of less than 10 showed severe cognitive impairment. The cases presented memory and language impairments, aphasia, visual spatial disorientation, decreased autonomy, executive dysfunction and praxis deficits, all major causes of severe dementia. Neuroimaging revealed hippocampal and cortical atrophy. Correlated with the other studies that aimed to establish links between brain alterations and neuropsychological disorders, we can conclude that a higher level of atrophy reflects a decrease in neuropsychological performance.