Objective: This study describes how subjective frequency of contact with friends changes over the lifespan, whether it has increased across cohorts, and if later-born cohorts maintain this contact into older ages.

Methods: Cross-sectional data from individuals aged 15–97 collected between 1968 and 2021 were used to create an age pattern, analyse changes within age groups, and compare self-reported age trajectories of frequent contact with friends across birth cohorts.

Results: Reported frequency of contact with friends follows a clear age pattern: decreasing from young adulthood, plateauing in midlife, and decreasing again in older age. Later-born cohorts are more likely to report frequent contact with friends, but this difference converges in older age. There is no strong evidence that later-born cohorts maintain frequent contact with friends into old age, though upcoming cohorts may show changes in this trend.

Discussion: As life expectancy and overall health in older age improve, understanding the role of contact with friends in supporting well-being becomes increasingly important. The convergence of the frequency of contact with friends across cohorts in older age could lead to unmet expectations of social contact in upcoming cohorts. Therefore, continued research and proactive measures to support social interactions throughout the ageing process could enhance social connectedness in ageing populations.

Aims: Social inequalities in mortality persist or even increase in high-income countries. Most evidence is based on a period approach to measuring mortality – that is, data from individuals born decades apart. A cohort approach, however, provides complementary insights using data from individuals who grow up and age under similar social and institutional arrangements. This study compares income inequalities in cohort life expectancy in two Swedish cohorts, one born before and one born after the expansion of the welfare state. Methods: Data on individuals born in Sweden in 1922–1926 and 1951–1955 were obtained from total population registries. These data were linked to individual disposable income from 1970 and 1999 and mortality between 50 and 61 years of age in 1972–1987 and 2001–2016, respectively. We calculated cohort temporary life expectancies in the two cohorts by income and gender. Results: Life expectancy, income, and income inequalities in life expectancy increased between the two cohorts, for both men and women. Women born in 1922–1926 had modest income differences in life expectancy, but pronounced differences emerged in the cohort born in 1951–1955. Men with low incomes born in 1951–1955 had roughly similar life expectancy as those with low incomes born in 1922–1926. Conclusions: Compared with a period approach to life expectancy trends, the cohort approach highlights the stagnation of mortality at the lowest income groups for men and the rapid emergence of a mortality gradient for women. Future research on health inequalities in welfare states should consider underlying factors both from a cohort and period perspective.

Loneliness has consistently been found to be associated with an increased probability of depressive symptoms among older adults. Yet, the relationship is complex, and it remains unclear whether loneliness is a cause of depressive symptomatology. The aim of this study is to investigate the possible causal effect of loneliness on subsequent depressive symptoms among older adults (65+) in Europe. We analyzed two waves of observational data (2015–2017) from the Study of Health, Aging, and Retirement in Europe (SHARE) (n = 6808) and attempted to identify a causal effect of loneliness on depressive symptomatology by accounting for confounding by potential unmeasured factors using an endogenous treatment-effect model. The results showed a substantial positive association between loneliness in 2015 and depressive symptoms in 2017 in the sample. However, there was no support for the hypothesis that loneliness in 2015 was a cause of depressive symptoms in 2017. Additionally, there was no evidence of unmeasured factors confounding the relationship. Thus, loneliness may not be a cause of depressive symptoms among older adults in the short term. These findings suggest that there might be other reasons why lonely individuals are at an increased risk of depressive symptoms. Therefore, a shift in focus when aiming to reduce depressive symptoms among lonely older adults may be warranted.

Background  This study explores recent cohort trends in cognitive performance among older Europeans from 2007 to 2017, addressing three key questions: (1) Did cognitive performance improve universally and across the performance distribution during this period? (2) Did these improvements occur across educational levels and for both men and women? (3) Can established risk factors explain these performance gains?

Methods  Using data from the Survey of Health, Ageing and Retirement in Europe (SHARE) across 12 European countries, we assessed immediate recall, delayed recall, and verbal fluency in individuals aged 60 to 94 in both 2007 and 2017 (n = 32 773). Differences between the two time points were estimated with linear mixed effects regression models and quantile regression.

Results  Cognitive performance improved in all age groups, across educational levels, and for both men and women between 2007 and 2017. Notably, improvements were more pronounced at the upper end of the performance distribution for delayed recall and verbal fluency. Education explained approximately 20% of the observed improvements. Risk factors did not explain the observed improvements.

Conclusions  European cohorts of both younger-old and older adults continue to exhibit improvements in cognitive performance. Variation in the size of the cohort improvements across the performance distributions in delayed recall and in verbal fluency may contribute to growing inequalities in cognitive outcomes. Future research should further investigate the potential heterogeneity in cognitive performance gains.

Purpose: We aim to investigate systematic differences in reporting spousal care between caregivers and cared-for persons and their possible effects for the analysis of care regimes and correlation of care with health. Materials and methods: Using information on care provided/received from the Survey on Health, Ageing and Retirement in Europe (SHARE), we estimate the prevalence of spousal care and discordance between caregivers and cared-for persons in the reporting of care among caregiving dyads. Multinomial regressions are used to estimate systematic differences in reporting spousal care. We then use multivariable logistic regressions to assess the association between discordance in reporting informal care and carer's self-rated health (SRH) and depression using the EURO-D scale. Results: Only 53.9 % of dyads report care that is confirmed by both spouses. Multinomial regressions show that agreement on care being provided/received is more common when women are caregivers, while men are likely to underreport when providing or receiving personal care. Prevalence of spousal care across care regimes is sensitive to who reports care. There is no effect on the association of care with SRH regardless of who identifies the carer, while the magnitude and statistical significance of the association between depression symptoms and care varies according to the choice of respondent. Conclusions: Informal care may be understated across Europe when relying solely on carer self-identification through description of tasks in surveys. From a policy standpoint, relying on self-identification of carers to access support or social benefits may potentially reduce the take-up of such benefits or support.

Background: The objective of this study is to explore the bidirectional, longitudinal associations between self-reported sensory functions (hearing/vision) and cognitive functioning among older adults in Sweden and Denmark during the period 2004–2017.

Methods: The study is based on data from The Survey of Health, Ageing and Retirement in Europe and consists of 3164 persons aged 60 to 93 years. Within-person associations between sensory and cognitive functions were estimated using random intercept cross-lagged panel models.

Results: The results indicated that cognitive and sensory functions were associated within their respective domains over time. The results on the bidirectional associations between sensory functions and cognition over time showed weak and statistically non-significant estimates.

Conclusion: Our study showed no clear evidence for cross-lagged effects between sensory functions and cognitive functioning. Important to note, however, is that using longitudinal data to estimate change within persons is a demanding statistical test and various factors may have contributed to the absence of conclusive evidence in our study. We discuss several of these factors.

Introduction: Educational differences in cognitive performance among older adults are well documented. Studies that explore this association typically estimate a single average effect of education on cognitive performance. We argue that the processes that contribute to the association between education and cognitive performance are unlikely to have equal effects at all levels of cognitive performance. In this study, we employ an analytical approach that enables us to go beyond averages to examine the association between education and five measures of global and domain-specific cognitive performance across the outcome distributions. Methods: This cross-sectional study included 1,780 older adults aged 58–68 years from the Longitudinal Aging Study Amsterdam. Conditional quantile regression was used to examine variation across the outcome distribution. Cognitive outcomes included Mini-Mental State Examination (MMSE) score, crystallized intelligence, information processing speed, episodic memory, and a composite score of global cognitive performance. Results: The results showed that the associations between education and different cognitive measures varied across the outcome distributions. Specifically, we found that education had a stronger association with crystallized intelligence, MMSE, and a composite cognitive performance measure in the lower tail of performance distributions. The associations between education and information processing speed and episodic memory were uniform across the outcome distributions. Conclusion: Larger associations between education and some domains of cognitive performance in the lower tail of the performance distributions imply that inequalities are primarily generated among individuals with lower performance rather than among average and high performers. Additionally, the varying associations across some of the outcome distributions indicate that estimating a single average effect through standard regression methods may overlook variations in cognitive performance between educational groups. Future studies should consider heterogeneity across the outcome distribution.

Old age disabilities are more common among women than men, and adverse socioeconomic conditions are associated with a higher prevalence of disabilities among older adults. The goal of this study was to complete a mapping review of the available evidence assessing the extent to which the observed sex differences in older adults´ disabilities can be attributed to sex differences in socioeconomic status. We searched three databases for articles published between 2009 and 2019, and after screening and looking at eligibility criteria, 6 articles were included in the review. For those studies that did not directly analyse the contribution of socioeconomic conditions, we used the´difference method´ to estimate the proportion of the sex gap in disabilities among older adults that could be attributed to socioeconomic conditions. Our review demonstrated that women generally have a higher prevalence of disabilities than men. In several studies, these differences could be partly attributed to sex differences in the distribution of socioeconomic conditions. We also find great elasticity in the magnitude of both the sex gap in disabilities and in the proportion that could be attributed to differences in socioeconomic conditions. 

Several factors associated with loneliness are also considered indicators of social exclusion. While loneliness has been proposed as an outcome of social exclusion, there is limited empirical evidence of a link. This study examines the associations between social exclusion indicators and loneliness in older adults (60+ years) in four Nordic countries. Data from four waves of the European Social Survey were pooled, providing a total of 7755 respondents (Denmark n = 1647; Finland n = 2501, Norway n = 1540; Sweden n = 2067). Measures of loneliness, demographic characteristics, health, and eight indicators of social exclusion were selected from the survey for analysis. Country-specific and total sample hierarchical logistic regression models of loneliness were developed. Significant model improvement occurred for all models after social exclusion indicators were added to models containing only demographic and health variables. Country models explained between 15.1 (Finland) and 21.5% (Sweden) of the variance in loneliness. Lower frequency of social contacts and living alone compared to in a two-person household was associated with a higher probability of loneliness in all countries, while other indicators were associated with loneliness in specific countries: lower neighbourhood safety (Sweden and Denmark); income concern (Sweden and Finland); and no emotional support (Denmark, Finland, and Sweden). A robust relationship was apparent between indicators of social exclusion and loneliness with the direction of associations being highly consistent across countries, even if their strength and statistical significance varied. Social exclusion has considerable potential for understanding and addressing risk factors for loneliness.

As the population of Europe grows older, one crucial issue is how the incidence and prevalence of disabilities are developing over time in the older population. In this study, we compare cohort-specific disability trajectories in old age across subsequent birth cohorts in Europe, during the period 2004–2017.We used data from seven waves of data from the Survey of Health, Ageing and Retirement in Europe (SHARE). Mixed effects logistic regression models were used to model trajectories of accumulation of ADL limitations for subsequent birth cohorts of older women and men in different European regions. The results showed that there were sex differences in ADL and IADL limitations in all regions for most cohorts. Women reported more limitations than men, particularly in Eastern and Southern rather than Northern and Western Europe. Among men in Eastern, Northern and Western Europe, later born cohorts reported more disabilities than did earlier born birth cohorts at the same ages. Similar patterns were observed for women in Northern and Western Europe. In contrast, the risk of disabilities was lower in later born cohorts than in earlier born birth cohorts among women in Eastern Europe. Overall, results from this study suggest that disability trajectories in different cohorts of men and women were by and large similar across Europe. The trajectories varied more depending on sex, age and region than depending on cohort.