The link between social and emotional isolation and dementia in older black and white Brazilians

Social Frailty and Social Isolation in the Context of Dementia: A Simultaneous Concept Analysis

OBJECTIVES

Early management of risk factors related to social health such as social frailty and social isolation could modify the progression of dementia and reduce its impact on people with dementia. However, due to overlapping definitions and interchangeable use of measurement tools, the precise distinction between these two concepts is unclear. This simultaneous concept analysis aimed to examine the definitions and interrelationships between the concepts of social frailty and social isolation within the context of dementia.

METHODS

The simultaneous concept analysis method developed by Haase et al. was employed. A literature search was conducted across six databases (Ovid Medline, CINAHL, PsycINFO, Scopus, Embase and Cochrane Library) to retrieve original research, review and theoretical papers, published in English. Data from the literature was synthesised and analysed thematically following Braun and Clarke's six steps.

RESULTS

The attributes of concepts of social frailty and social isolation overlap, including being alone and having limited or less social activities, engagements or interactions. The specific attributes of social frailty are financial difficulties and less talk while social isolation is distinctly marked by a lack of social networks or social relationships. Socio-economic welfare is a specific antecedent of social frailty, while decreased access to social resources and lower social well-being are distinctive consequences of social isolation. Cognitive decline and dementia are distinctive antecedents of social isolation; however, they also exist as shared consequences of both social frailty and social isolation.

CONCLUSIONS

This simultaneous concept analysis clarified the similarities and differences between social frailty and social isolation in the context of dementia. A clearer understanding of the interrelationships between social frailty and social isolation and distinct and overlapping characteristics of them will support strategies to comprehensively address social health issues experienced by people with dementia.

Contributions of loneliness to cognitive impairment and dementia in older adults are independent of other risk factors and Alzheimer's pathology: a narrative review

Loneliness significantly contributes to cognitive impairment and dementia in older adults. Loneliness is a distressing feeling resulting from a perceived lack of social connection (i.e., a discrepancy between desired and actual social relationships), while social isolation is a related term that can be defined by number and type of social relationships. Importantly, loneliness is distinct from social isolation in that it is associated with a distressing self-perception. The primary focus of this narrative review is the impact of chronic loneliness on cognitive impairment and dementia among older adults. Loneliness has a significant association with many factors that are related to worse cognition, and therefore we include discussion on health, mental health, as well as the physiological effects of loneliness, neuropathology, and potential treatments. Loneliness has been shown to be related to development of dementia with a hazard ratio (HR) risk comparable to having a single APOE4 gene. The relationship of dementia to loneliness appears to be at least partially independent of other known dementia risk factors that are possibly associated with loneliness, such as depression, educational status, social isolation, and physical activity. Episodic memory is not consistently impacted by loneliness, which would be more typically impaired if the mild cognitive impairment (MCI) or dementia was due to Alzheimer's disease (AD) pathology. In addition, the several longitudinal studies that included neuropathology showed no evidence for a relationship between loneliness and AD neuropathology. Loneliness may decrease resilience, or produce greater cognitive change associated with the same level of AD neuropathology. Intervention strategies to decrease loneliness in older adults have been developed but need to consider key treatment targets beyond social isolation. Loneliness needs to be assessed in all studies of cognitive decline in elders, since it significantly contributes to the variance of cognitive function. It will be useful to better define the underlying mechanism of loneliness effects on cognition to determine if it is similar to other psychological factors related to excessive stress reactivity, such as neuroticism or even depression, which are also associated with cognitive decline. It is important from a health perspective to develop better strategies to decrease loneliness in older adults.

Association between sensation, perception, negative socio-psychological factors and cognitive impairment

Background

Evidence has suggested that sensation and socio-psychological factors may be associated with cognitive impairment separately in older adults. However, the association between those risk factors and cognitive impairment is still unknown.

Objective

To investigate the association between sensation, perception, negative socio-psychological factors, and cognitive impairment in institutionalized older adults.

Methods

From two public aged care facilities, 215 participants were investigated. The Mini-mental State Examination was applied to assess cognitive function. The sensory function was bifurcated into auditory and somatosensory realms which were evaluated using pure tone audiometry and Nottingham Sensory Assessment, respectively. Albert's test, left and right resolution, and visuospatial distribution were used to evaluate perception. Depression and social isolation were selected as negative socio-psychological factors and were evaluated by the Geriatric Depression Scale and the Lubben Social Network Scale. The multivariate analysis was performed utilizing binary logistic regression.

Results

Participants with moderately severe or severe hearing loss exhibited significant cognitive impairment compared to those with mild hearing loss. It was observed that perceptual dysfunction and depression were independently related to cognitive impairment. However, there was no significant association between somatosensory function, social isolation, and cognitive impairment in the institutionalized older adults.

Conclusion

More profound hearing loss, abnormal perception, and depression are associated with cognitive impairment in older adults. Subsequent research endeavors should delve into the causal mechanisms underpinning these associations and explore whether combined interventions have the potential to postpone the onset of cognitive impairment.

Mediating role of homebound status between depressive symptoms and cognitive impairment among community-dwelling older adults in the USA: a cross-sectional analysis of a cohort study

OBJECTIVE

Depressive symptoms are known modifiable factors of cognitive impairment in older adults. However, the pathway through which depressive symptoms lead to cognitive impairment is not well understood. This study aimed to investigate whether homebound status (defined as usually unable to leave home unassisted) mediates the association between depressive symptoms and cognitive impairment in community-dwelling older adults in the USA.

DESIGN

A secondary analysis of cross-sectional data.

SETTINGS

Communities in the USA.

PARTICIPANTS

Community-dwelling older adults (N=7537) from the 2011 National Health and Aging Trends Study, a nationally representative survey of Medicare Beneficiaries in the USA.

MAIN OUTCOME MEASURES

Participants' cognitive impairment status was classified using a composite measure. Depressive symptoms were assessed using Patient Health Questionnaire-2. Homebound status was determined by the frequency, difficulty and needing help in getting outdoors. We used logistic regression and the Paramed command in STATA to analyse whether homebound mediated the association between depressive symptoms and cognitive impairment.

RESULTS

Participants were on average, 77.7 years old, female (58.3%) and non-Hispanic white (68.1%). About 26% of the participants were classified as having cognitive impairment, 16% reported depressive symptoms and 25% were homebound. Depressive symptoms (adjusted OR, 1.60; 95% CI 1.36 to 1.89) and homebound status (adjusted OR, 1.58; 95% CI 1.34 to 1.86) were independently associated with cognitive impairment. Homebound significantly mediated 12.5% of the total effect between depressive symptoms and cognitive impairment, with significant indirect effect (OR, 1.07; 95% CI 1.04 to 1.10), direct effect (OR, 1.61; 95% CI 1.36 to 1.91) and total effect (OR, 1.72; 95% CI 1.46 to 2.03).

CONCLUSIONS

This study supports a mediating role of homebound status in the relationship between depressive symptoms and cognitive impairment. Interventions to promote outdoor mobility should be studied for their ability to delay cognitive impairment for older adults with depressive symptoms.

The Concept of Social Health From an Iranian Perspective: A Qualitative Exploration

Objective

As one of the health aspects, social health is less well-known than physical and mental aspects. In order to better understand this aspect and considering the importance of social context in its conceptualizing, the present study was performed aiming at explaining the social health and identification of its various aspects in the perspective of Iranian adults.

Methodology

The present study was conducted in 2021 with a qualitative approach and with the participation of Iranian adults and social health professionals. Data were collected through semi-structured interviews with 36 participants who were selected by purposive sampling. The obtained data were analyzed using qualitative (conventional) content analysis and Granheim and Lundman method in the MAXQDA-2020. Guba and Lincoln criteria were observed to evaluate the quality of research results.

Results

Using data analysis, 3 main categories and 17 subcategories were obtained, including: (1) Conceptual scope of social health (social health as social capital, social health as mental health, social health as moral health), (2) Characteristics of social health (biologic, continual, acquired, evolutionary, relative), and (3) Social health dimensions (openness to interactions, social adaptability, social dutifulness, social self-esteem, mutual trust, communicational capability, social optimism, enjoying social support, public-oriented personality).

Conclusion

Since social health has a conceptual scope, it is important to try to strengthen and reproduce the dimensions of social health and at the same time use planning, policymaking and appropriate interventions to improve and to promote the dimensions of social health.

Brain health: Key to health, productivity, and well-being

Brain health is essential for physical and mental health, social well-being, productivity, and creativity. Current neurological research focuses mainly on treating a diseased brain and preventing further deterioration rather than on developing and maintaining brain health. The pandemic has forced a shift toward virtual working environments that accelerated opportunities for transdisciplinary collaboration for fostering brain health among neurologists, psychiatrists, psychologists, neuro and socio-behavioral scientists, scholars in arts and humanities, policymakers, and citizens. This could shed light on the interconnectedness of physical, mental, environmental, and socioeconomic determinants of brain disease and health. We advocate making brain health the top priority worldwide, developing common measures and definitions to enhance research and policy, and finding the cause of the decline of incidence of stroke and dementia in some countries and then applying comprehensive customized cost-effective prevention solutions in actionable implementation units. Life cycle brain health offers the best single individual, communal, and global investment.