Age- and time-varying associations between subjective health and episodic memory in older adults

Modelling Age-Varying Associations among Group Memberships, Neighborhood Connectedness, and Well-Being

Individuals who maintain group memberships in their community tend to experience improved well-being relative to those who participate in few or no groups. There are, however, few investigations targeting variability in the correlates of group membership across the lifespan. The present examination probed age-related variability in the association between group memberships and subjective connectedness as well as well-being. Participants included 3,940 (mean age = 45.61 years, standard deviation [SD] = 15.62) Canadian and American respondents who completed an online survey during August of 2020 (i.e., amidst the COVID-19 pandemic). Time-varying effects modelling was used to estimate coefficients for group membership at each age within the sample. Memberships in social groups positively predicted connectedness, and this association was strongest in middle-to-older age; a similar association was also evident when predicting well-being. Connectedness was also a positive predictor of well-being throughout most ages. These findings build on emerging research conveying how group memberships have significance for people currently in middle-to-older age.

Negative attitudes of healthy older adults toward unhealthy older adults: Focus on the subjective health

Negative attitudes toward older adults, especially those with declining physical function and/or advanced dementia (i.e., unhealthy older adults), are serious. It is important to identify psychological factors associated with such negative attitudes toward unhealthy older adults. In this study, we focused on subjective health (subjective perception of one's own health status). We tested the hypothesis that healthy older adults with lower subjective health have more negative attitudes toward unhealthy older adults. We also examined whether this association is still pronounced after controlling for the participants' physical health status and demographics. In this study, an online survey was conducted among Japanese older adults who were not certified as needing long-term care (N = 1,082, aged 65-88). To control for the participants' physical health status, we focus on frailty. We conducted a factor analysis and multiple regression analysis on negative attitudes toward unhealthy older adults. As a result, healthy older participants with lower subjective health perceived unhealthy older adults negatively, and this association was still pronounced even after controlling for the participants' frailty score and demographics. Based on our findings, it is suggested that increasing the subjective health of older adults may help them view each other more positively. Therefore, it is important to devise gerontological and psychological interventions to improve older adults' subjective health. This study has limitations, such as the fact that we conducted only an online survey. Previous studies on how older adults perceive the social group of older adults are scarce, and further studies are expected.

Multidimensional Assessment of Subjective Well-Being and Risk of Dementia: Findings from the UK Biobank Study

This study aimed to examine the associations between subjective well-being (SWB) and risk of all-cause dementia, Alzheimer's disease (AD), and vascular dementia (VD). We adopted a multidimensional approach to SWB that included the level and breadth of SWB, the latter indicating the extent to which SWB spreads across life domains. Participants (N=171,197; mean age=56.78; SD=8.16 years) were part of the UK Biobank and were followed up to 8.78 years. Domain-general and domain-specific SWB were measured by single items, and the breadth of SWB was indexed with a cumulative score of satisfaction across domains. Dementia incidence was ascertained through hospital and death records. Cox regression was used to examine the association between SWB indicators and risk of all-cause dementia, AD, and VD. General happiness, health and family satisfaction, and satisfaction breadth (satisfaction in multiple domains) were associated with lower risk of all-cause dementia. The associations held after accounting for socio-demographics, health, behavioral, and economic covariates, and depressive symptoms. Health satisfaction and the breadth of satisfaction were also associated with lower risk of AD and VD, with a pattern of slightly stronger associations for VD compared to AD. Some life domains (e.g., health) may be more fruitfully targeted to promote well-being and help protect against dementia, but it is also important to enhance well-being across multiple domains to maximize the protective effects.