Dementia, Diagnostic Disclosure, and Self-Reported Health Status

Effectiveness of physical exercise at improving functional capacity in older adults living with Alzheimer's disease: a systematic review of randomized controlled trials

PURPOSE

To investigate the effects of physical exercise at improving functional capacity in older adults living with Alzheimer's disease (AD).

METHODS

Medline, Embase, Web of Science, The Cochrane Library, Lilacs, and PEDro were searched from inception until January 2021. Randomized controlled trials (RCTs) that reported functional capacity outcomes were included. The evidence was assessed using the GRADE approach.

RESULTS

Thirteen RCTs were included, involving 811 older adults living with AD. Multimodal exercise (ME), aerobic exercise (AE), and resistance exercise (RE) were used. The interventions were mainly supervised by caregivers. The evidence was low and with effect for activities of daily living (ADLs), moderate and with no effect for mobility and very low and with no effect for muscle strength, postural balance and flexibility after treatment with ME, moderate and with no effect for cardiorespiratory function and ADLs after treatment with AE. It was not possible to synthesize any type of evidence for RE.

CONCLUSIONS

Multimodal exercise promotes improvements in functional capacity (ADLs). Therefore, the practice of physical exercise can be recommended for older adults living with AD. The involvement of the caregiver in the physical exercises should also be considered, as it could enhance the benefits of exercise for these older adults.Implications for rehabilitationHealthcare providers with clinical knowledge regarding physical exercise should promote, prescribe and support the daily practice of physical exercises for older adults living with Alzheimer's disease (AD).The involvement of caregivers in home-based physical exercise programs should be considered, as it could enhance the benefits of such programs for these older adults.It is important to consider the degree of cognitive impairment in older adults living with AD when outlining goals for the improvement in functional capacity through physical exercise.Multimodal exercise involving aerobic training, postural balance, muscle strengthening, and flexibility is capable of promoting an improvement in functional capacity (activities of daily living) for these older adults.

Dementia and Related Comorbidities in the Population Aged 90 and Over in the Vitality 90+ Study, Finland: Patterns and Trends From 2001 to 2018

OBJECTIVES

To examine trends in the prevalence of dementia and related comorbidities among the oldest old.

METHODS

Six repeated cross-sectional surveys were conducted between 2001 and 2018, each including all inhabitants aged over 90 in Tampere, Finland (n = 5386). Co-occurring conditions and their time trends among participants with dementia were examined using logistic regression and generalized estimating equations.

RESULTS

The prevalence of dementia decreased from 47% in 2007 to 41% in 2018. Throughout the study period, depression was more common among people with dementia compared to those without. The prevalence of hypertension, diabetes, and osteoarthritis increased and the prevalence of depression decreased among people with dementia. The mean number of comorbidities increased from 2.0 in 2001 to 2.3 in 2018.

DISCUSSION

Dementia remains highly prevalent among the oldest old and it is accompanied by an increasing burden of comorbidities, posing a challenge to people with dementia, their caregivers, and care systems.

Challenges in disclosing and receiving a diagnosis of dementia: a systematic review of practice from the perspectives of people with dementia, carers, and healthcare professionals

BACKGROUND

Disclosing a diagnosis of dementia is a key process involving people with dementia, carers, and healthcare professionals (HCPs) that can facilitate access to treatment and support. Receiving a diagnosis of dementia may represent a change in identity and loss of a planned-for future, resulting in an emotional impact for both people with dementia and carers. Delivering the diagnosis of dementia can be difficult and draining for HCPs.

METHODS

We conducted a systematic review that included studies which explored the experience of giving or receiving a diagnosis of dementia from the perspectives of people with dementia, carers, or HCPs. All study designs were eligible except for previous literature reviews. Findings were analyzed thematically and grouped into categories and then synthesized into a narrative review. The quality of all included studies was assessed.

RESULTS

Fifty-two studies were included in this review. Findings indicated that receiving a diagnosis is generally a negative process for people with dementia, carers, and HCPs and leaves carers in particular feeling uncertain over the prognosis and future of the person they care for. Disclosing a diagnosis of dementia is a difficult and complex process, for which formal training and guidance is lacking. Carers in particular would welcome more opportunity for realistic and hopeful discussions of the implications of receiving a diagnosis of dementia.

CONCLUSIONS

Changes in some aspects of disclosure, such as providing a truthful diagnosis to the person with dementia, have occurred over the last decade. A process approach involving pre-diagnostic counseling and follow-up appointments could enable discussions regarding prognosis and the future, create opportunities to clarify the diagnosis, and reduce emotional burden on HCPs. There is a need for more objective evidence that considers the perspectives of all individuals involved.

Racial and Ethnic Differences in Knowledge About One's Dementia Status

OBJECTIVES

To examine racial and ethnic differences in knowledge about one's dementia status.

DESIGN

Prospective cohort study.

SETTING

The 2000 to 2014 Health and Retirement Study.

PARTICIPANTS

Our sample included 8,686 person-wave observations representing 4,065 unique survey participants, aged 70 years or older, with dementia, as identified by a well-validated statistical prediction model based on individual demographic and clinical characteristics.

MEASUREMENTS

Primary outcome measure was knowledge of one's dementia status, as reported in the survey. Patient characteristics included race/ethnicity, age, sex, survey year, cognition, function, comorbidity, and whether living in a nursing home.

RESULTS

Among subjects identified as having dementia by the prediction model, 43.5% to 50.2%, depending on the survey year, reported that they were informed of the dementia status by their physician. This proportion was lower among Hispanics (25.9%-42.2%) and non-Hispanic blacks (31.4%-50.5%) than among non-Hispanic whites (47.7%-52.9%). Our fully adjusted regression model indicated lower dementia awareness among non-Hispanic blacks (odds ratio [OR] = 0.74; 95% confidence interval [CI] = 0.58-0.94) and Hispanics (OR = 0.60; 95% CI = 0.43-0.85), compared to non-Hispanic whites. Having more instrumental activity of daily living limitations (OR = 1.65; 95% CI = 1.56-1.75) and living in a nursing home (OR = 2.78; 95% CI = 2.32-3.32) were associated with increased odds of subjects reporting being told about dementia by a physician.

CONCLUSION

Less than half of individuals with dementia reported being told by a physician about the condition. A higher proportion of non-Hispanic blacks and Hispanics with dementia may be unaware of their condition, despite higher dementia prevalence in these groups, compared to non-Hispanic whites. Dementia outreach programs should target diverse communities with disproportionately high disease prevalence and low awareness. J Am Geriatr Soc 68:1763-1770, 2020.

Disclosing a dementia diagnosis: what do patients and family consider important?

BACKGROUND

The literature available on the format of the feedback session following assessment of memory impairment is minimal. This study explored how this information should be presented from the perspective of patients and their families.

METHODS

Thirty-two semi-structured interviews were conducted with memory clinic patients and their carer at the clinic visit that followed the feedback session, to ask: what they recalled, what they found helpful, and what they thought was the best way to disclose a diagnosis of dementia. A second interview was conducted with 14 patient/carer dyads at their next appointment.

RESULTS

Recall of information from the feedback session was variable. Most respondents (76% of patients; 66% of carers) thought that a direct approach was best when informing the patient of a dementia diagnosis, and that both written information and compassion demonstrated by the doctor were helpful. Opinions on whether all the information should be given at once or in stages were divided.

CONCLUSIONS

The current format of the feedback session needs revision to improve recall. Patients and their families want a direct approach to be used by a supportive and professional doctor with an opportunity to ask questions. They want the support of a family member or friend when they are told of their diagnosis and they would like a written summary to refer to afterwards.

Predictors of agreement between general practitioner detection of dementia and the revised Cambridge Cognitive Assessment (CAMCOG-R)

BACKGROUND

Dementia is a complex and variable condition which makes recognition of it particularly difficult in a low prevalence primary care setting. This study examined the factors associated with agreement between an objective measure of cognitive function (the revised Cambridge Cognitive Assessment, CAMCOG-R) and general practitioner (GP) clinical judgment of dementia.

METHODS

This was a cross-sectional study involving 165 GPs and 2,024 community-dwelling patients aged 75 years or older. GPs provided their clinical judgment in relation to each of their patient's dementia status. Each patient's cognitive function and depression status was measured by a research nurse using the CAMCOG-R and the 15-item Geriatric Depression Scale (GDS), respectively.

RESULTS

GPs correctly identified 44.5% of patients with CAMCOG-R dementia and 90% of patients without CAMCOG-R dementia. In those patients with CAMCOG-R dementia, two patient-dependent factors were most important for predicting agreement between the CAMCOG-R and GP judgment: the CAMCOG-R score (p = 0.006) and patient's mention of subjective memory complaints (SMC) to the GP (p = 0.040). A higher CAMCOG-R (p < 0.001) score, female gender (p = 0.005), and larger practice size (p < 0.001) were positively associated with GP agreement that the patient did not have dementia. Subjective memory complaints (p < 0.001) were more likely to result in a false-positive diagnosis of dementia.

CONCLUSIONS

Timely recognition of dementia is advocated for optimal dementia management, but early recognition of a possible dementia syndrome needs to be balanced with awareness of the likelihood of false positives in detection. Although GPs correctly agree with dimensions measured by the CAMCOG-R, improvements in sensitivity are required for earlier detection of dementia.

Agreement on diagnosis among patients, companions, and professionals after a dementia evaluation

A diagnosis of dementia is challenging to deliver and to hear; yet, agreement on diagnosis is essential for effective treatment for dementia. We examined consensus on the results of an evaluation of dementia in 90 patients assessed at an Alzheimer's Disease Research Center. Diagnostic impressions were obtained from 5 sources: (1) the physician's chart; (2) the patient who was evaluated; (3) a companion present at the evaluation; (4) a diagnostic summary written by a nurse present during the evaluation; and (5) raters who watched a video of the diagnostic disclosure conversation. Overall, diagnostic consensus was only moderate. Patients and companions exhibited just fair agreement with one another. Agreement was better between physicians and companions compared with that between physicians and patients, although it was imperfect between physicians and video raters and the written summary. Agreement among sources varied by dementia severity, with the lowest agreement occurring in instances of very mild dementia. This study documents discrepancies that can arise in diagnostic communication, which could influence adjustment to a diagnosis of dementia and decisions regarding future planning and care.

A method for partitioning the attributable fraction of multiple time-dependent coexisting risk factors for an adverse health outcome

OBJECTIVES

We decomposed the total effect of coexisting diseases on a timed occurrence of an adverse outcome into additive effects from individual diseases.

METHODS

In a cohort of older adults enrolled in the Precipitating Events Project in New Haven County, Connecticut, we assessed a longitudinal extension of the average attributable fraction method (LE-AAF) to estimate the additive and order-free contributions of multiple diseases to the timed occurrence of a health outcome, with right censoring, which may be useful when relationships among diseases are complex. We partitioned the contribution to death into additive LE-AAFs for multiple diseases.

RESULTS

The onset of heart failure and acute episodes of pneumonia during follow-up contributed the most to death, with the overall LE-AAFs equal to 13.0% and 12.1%, respectively. The contribution of preexisting diseases decreased over the years, with a trend of increasing contribution from new onset of diseases.

CONCLUSIONS

LE-AAF can be useful for determining the additive and order-free contribution of individual time-varying diseases to a time-to-event outcome.

Determinants of changes in self-rated health among Finnish war veterans: results from the Veteran Project 1992 and 2004 surveys

Self-rated health is a strong predictor of mortality, morbidity, future functional capacity and the quality of life. Measures of self-rated health have been collected fairly regularly since the 1980s, but few of them focus on self-rated health among the elderly war veterans. The aim of this study was to examine changes in self-rated health among Finnish war veterans from 1992 to 2004 and to analyze the independent determinants associated with changes in veterans' self-rated health. The study population was 4999 veterans living in Finland, who participated in data collection of both the Veteran Project 1992 and 2004. Logistic regression models were used to identify independent predictors for changes in self-rated health. Analyses were conducted separately for men with and without disability and for women. During the follow-up, self-rated health improved or remained unchanged among 88.8% of the men without disability, 90.5% of the men with disability and 87.9% of the women. Determinants for declined self-rated health were a new cardiovascular disease (CVD) among all veteran groups, increased walking difficulties among men without disability and women, a new neurological disease and institutionalization among men without disability, and a new musculoskeletal disease among men with disability. In conclusion, the majority of veterans rated their health improved or unchanged during the follow-up. The importance of mobility impairments and cardiovascular, musculoskeletal and neurological diseases as the predictors of declined self-rated health were confirmed.

The transition to dementia--individual and family experiences of receiving a diagnosis: a review

BACKGROUND

Consensus recommends early recognition of memory problems through multi-disciplinary assessment in memory clinics; however, little is known about the experiences of people accessing such services. The aim of this review was to synthesis empirical evidence on patient and carer experiences in the transition to dementia.

METHODS

This review updates an earlier review (Bamford et al., 2004) on the topic of disclosure of the diagnosis of dementia. Key electronic databases were searched including OVID Medline, CINAHL, Web of Science, EMBASE, and Sociological Abstracts; this was supplemented by hand searching of reference lists and contact with experts in the field. Only papers published after 2003 were included.

RESULTS

Of the 35 papers included in the review, only one study observed the process of disclosure and only two papers explored the effects on the person with dementia's health. The vast majority of people with dementia wished to know their diagnosis. The key challenges for the person with dementia were coming to terms with losses on multiple levels. Although there may be short-term distress, the majority of people with dementia do not appear to experience long-term negative effects on their psychological health. For family carers, becoming the main decision-maker and adjusting to increased responsibility were common concerns.

CONCLUSIONS

There is still little empirical research observing the process of diagnostic disclosure in dementia. Studies exploring the views of patients and their families suggest this should be an ongoing process with the provision of support and information tailored to individual needs. The term "Alzheimer's disease" appears to have more negative connotations than the word "dementia".

Knowledge of documented dementia diagnosis and treatment in veterans and their caregivers

We studied perceptions of dementia diagnosis and treatment in patient-caregiver dyads enrolled in a care coordination intervention trial for veterans with dementia. We compared patient and caregiver perceptions of diagnosis and treatment to information in the medical record and assessed concordance between patient and caregiver perceptions. Data were derived from medical record abstraction and structured interviews with 132 patients and 183 caregivers. Most caregivers, but only about one fourth of patients, reported having received information about a diagnosis related to memory loss. Caregivers were more accurate than patients in recalling the patient's use of memory-enhancing medications. Within dyads there was poor agreement regarding a diagnosis of dementia. Our findings suggest that there is substantial room for improvement in disclosure and education of dementia diagnosis, especially at the level of the patient-caregiver dyad.

What is self-rated health and why does it predict mortality? Towards a unified conceptual model

The association of self-rated health with mortality is well established but poorly understood. This paper provides new insights into self-rated health that help integrate information from different disciplines, both social and biological, into one unified conceptual framework. It proposes, first, a model describing the health assessment process to show how self-rated health can reflect the states of the human body and mind. Here, an analytic distinction is made between the different types of information on which people base their health assessments and the contextual frameworks in which this information is evaluated and summarized. The model helps us understand why self-ratings of health may be modified by age or culture, but still be a valid measure of health status. Second, based on the proposed model, the paper examines the association of self-rated health with mortality. The key question is, what do people know and how do they know what they know that makes self-rated health such an inclusive and universal predictor of the most absolute biological event, death. The focus is on the social and biological pathways that mediate information from the human organism to individual consciousness, thus incorporating that information into self-ratings of health. A unique source of information is provided by the bodily sensations that are directly available only to the individual him- or herself. According to recent findings in human biology, these sensations may reflect important physiological dysregulations, such as inflammatory processes. Third, the paper discusses the advantages and limitations of self-rated health as a measure of health in research and clinical practice. Future research should investigate both the logics that govern people's reasoning about their health and the physiological processes that underlie bodily feelings and sensations. Self-rated health lies at the cross-roads of culture and biology, therefore a collaborative effort between different disciplines can only improve our understanding of this key measure of health status.