Life-course income trajectories of men and women in Norway: implications for self-rated health in later life.

BACKGROUND: Socioeconomic inequalities in health are well-established, but studies addressing lagged effects of income or of fluctuations in income over the life course are relatively rare. The current study aims to (i) identify and describe life-course income trajectories for men and women who are currently in later life; and (ii) assess the association of income trajectories with self-rated health in older adults. METHODS: The study sample consisted of 1625 men and 1634 women born between 1937 and 1955 who participated in the third wave of the Norwegian Life course, Ageing and Generation Study. Latent class growth analyses were used to estimate dominant income trajectories from ages 30 through 62 in men and women. Stepwise logistic regression analyses were specified to analyze the association of income trajectories with self-rated health in later life. RESULTS: Four trajectories in women and three trajectories in men were estimated as dominant patterns of income over the life course. Differences in the level of income were considerable at age 30 and accumulated over time. Continued exposure to low income showed statistically significant higher odds for poor self-rated health in older men and women. This association remained significant after taking differences in educational attainment, working life, family formation and accumulated wealth into account. CONCLUSION: The findings suggested remarkable rigidity in income groups that had formed by age 30. A significant share of men and women remain mired in relatively low-income status across the life course with negative implications for health in later life.

How Welfare Regimes Moderate the Associations Between Cognitive Aging, Education, and Occupation.

OBJECTIVES: Previous studies have shown the importance of individual markers of cognitive reserve, such as education and occupation, for cognitive health in old age. However, there has been only little investigation so far on how this relationship varies across contexts. METHODS: We analyzed data from the Survey of Health, Ageing, and Retirement in Europe, using second-order latent growth models, to assess the moderating role of welfare regimes on the relationship between education and occupation skill level in explaining overall cognitive functioning and decline in old age. Our sample includes 13 European countries using data from 5 regular waves of the survey (2004-2007 and 2011-2015) and 2 retrospective ones (2008-2009 and 2017). Cognitive functioning was modeled as a latent variable measured by immediate and delayed recall, verbal fluency, and numeracy. RESULTS: 74,193 participants were included from the survey. Our analysis showed that the association of education with cognition was weaker overall in Scandinavian countries, but stronger in Southern European countries, relative to Bismarckian ones. However, educational differences in the decline of cognition were more pronounced only in Scandinavian compared to Bismarckian countries. Additionally, higher-skilled occupations in Scandinavian countries had better overall functioning compared to the same occupations in Bismarckian countries, but there was no difference in the decline in cognitive functioning. DISCUSSION: Our findings indicate that the associations of cognitive functioning and its decline with individuals' cognitive reserve markers (education and occupational skill level) vary according to welfare regimes, showing the importance of contextual factors in cognitive aging processes.

Exclusion from Social Relations in Later Life: Micro- and Macro-Level Patterns and Correlations in a European Perspective.

Older adults face particular risks of exclusion from social relationships (ESR) and are especially vulnerable to its consequences. However, research so far has been limited to specific dimensions, countries, and time points. In this paper, we examine the prevalence and micro- and macro-level predictors of ESR among older adults (60+) using two waves of data obtained four years apart across 14 European countries in the Survey of Health, Ageing and Retirement in Europe (SHARE). We consider four ESR indicators (household composition, social networks, social opportunities, and loneliness) and link them to micro-level (age, gender, socioeconomic factors, health, and family responsibilities) and national macro-level factors (social expenditures, unmet health needs, individualism, social trust, and institutional trust). Findings reveal a northwest to southeast gradient, with the lowest rates of ESR in the stronger welfare states of Northwest Europe. The high rates of ESR in the southeast are especially pronounced among women. Predictably, higher age and fewer personal resources (socioeconomic factors and health) increase the risk of all ESR dimensions for both genders. Macro-level factors show significant associations with ESR beyond the effect of micro-level factors, suggesting that national policies and cultural and structural characteristics may play a role in fostering sociability and connectivity and, thus, reduce the risk of ESR in later life.

Do Welfare Regimes Moderate Cumulative Dis/advantages Over the Life Course? Cross-National Evidence from Longitudinal SHARE Data.

OBJECTIVES: This study aimed to examine the cumulative disadvantage of different forms of childhood misfortune and adult-life socioeconomic conditions (SEC) with regard to trajectories and levels of self-rated health in old age and whether these associations differed between welfare regimes (Scandinavian, Bismarckian, Southern European, and Eastern European). METHOD: The study included 24,004 respondents aged 50-96 from the longitudinal SHARE survey. Childhood misfortune included childhood SEC, adverse childhood experiences, and adverse childhood health experiences. Adult-life SEC consisted of education, main occupational position, and financial strain. We analyzed associations with poor self-rated health using confounder-adjusted mixed-effects logistic regression models for the complete sample and stratified by welfare regime. RESULTS: Disadvantaged respondents in terms of childhood misfortune and adult-life SEC had a higher risk of poor self-rated health at age 50. However, differences narrowed with aging between adverse-childhood-health-experiences categories (driven by Southern and Eastern European welfare regimes), categories of education (driven by Bismarckian welfare regime), and main occupational position (driven by Scandinavian welfare regime). DISCUSSION: Our research did not find evidence of cumulative disadvantage with aging in the studied life-course characteristics and age range. Instead, trajectories showed narrowing differences with differing patterns across welfare regimes.

Life Course Socioeconomic Conditions and Frailty at Older Ages.

OBJECTIVES: This article aimed to assess associations of childhood socioeconomic conditions (CSC) with the risk of frailty in old age and whether adulthood socioeconomic conditions (ASC) influence this association. METHODS: Data from 21,185 individuals aged 50 years and older included in the longitudinal Survey of Health, Ageing, and Retirement in Europe were used. Frailty was operationalized as a sum of presenting weakness, shrinking, exhaustion, slowness, or low activity. Confounder-adjusted multilevel logistic regression models were used to analyze associations of CSC and ASC with frailty. RESULTS: While disadvantaged CSC was associated with higher odds of (pre-)frailty in women and men (odds ratio [OR] = 1.73, 95% confidence interval [CI] 1.34, 2.24; OR = 1.84, 95% CI 1.27, 2.66, respectively), this association was mediated by ASC. Personal factors and demographics, such as birth cohort, chronic conditions, and difficulties with activities of daily living, increased the odds of being (pre-)frail. DISCUSSION: Findings suggest that CSC are associated with frailty at old age. However, when taking into account ASC, this association no longer persists. The results show the importance of improving socioeconomic conditions over the whole life course in order to reduce health inequalities in old age.

Life-Course Circumstances and Frailty in Old Age Within Different European Welfare Regimes: A Longitudinal Study With SHARE.

OBJECTIVES: This study aimed to assess whether cumulative disadvantage in childhood misfortune and adult-life socioeconomic conditions influence the risk of frailty in old age and whether welfare regimes influence these associations. METHOD: Data from 23,358 participants aged 50 years and older included in the longitudinal SHARE survey were used. Frailty was operationalized according to Fried's phenotype as presenting either weakness, shrinking, exhaustion, slowness, or low activity. Confounder-adjusted mixed-effects logistic regression models were used to analyze associations of childhood misfortune and life-course socioeconomic conditions with frailty. RESULTS: Childhood misfortune and poor adult-life socioeconomic conditions increased the odds of (pre-)frailty at older age. With aging, differences narrowed between categories of adverse childhood experiences (driven by Scandinavian welfare regime) and adverse childhood health experiences (driven by Eastern European welfare regime), but increased between categories of occupational position (driven by Bismarckian welfare regime). DISCUSSION: These findings suggest that childhood misfortune is linked to frailty in old age. Such a disadvantaged start in life does not seem to be compensated by a person's life-course socioeconomic trajectory, though certain types of welfare regimes affected this relationship. Apart from main occupational position, our findings do not support the cumulative dis/advantage theory, but rather show narrowing differences.

Are there educational disparities in health and functioning among the oldest old? Evidence from the Nordic countries.

With the ageing of the population and recent pressures on important welfare state arrangements, updated knowledge on the linkage between socioeconomic status and health in old age is pertinent for shedding light on emerging patterns of health inequalities in the Nordic countries. This study examined self-rated health (SRH), mobility and activities of daily living (ADL) according to level of education in the three oldest old age groups 75-84, 85-94, and 95+, in four Nordic countries. Altogether, 6132 individuals from Danish Longitudinal Study of Ageing, Norwegian Life Course, Ageing and Generation study, Swedish Panel Study of Living Conditions of the Oldest Old, the 5-Country Oldest Old (Sweden) and Vitality 90 + Study were analysed. First, associations of education level with SRH, mobility, and ADL were estimated for each individual study by means of age- and gender-adjusted logistic regression. Second, results from individual studies were synthesized in a meta-analysis. Older adults with higher education level were more likely to report good SRH, and they were more often independent in mobility and ADL than those with basic education when all age groups were combined. In mobility and ADL, differences between education groups remained stable across the age groups but for SRH, differences seemed to be weaker in older ages. With only a few exceptions, in all age groups, individuals with higher education had more favourable health and functioning than those with basic education. This study shows remarkable persistence of health and functioning inequalities in the Nordic countries throughout later life.

Advantaged socioeconomic conditions in childhood are associated with higher cognitive functioning but stronger cognitive decline in older age.

Cognitive aging is characterized by large heterogeneity, which may be due to variations in childhood socioeconomic conditions (CSC). Although there is substantial evidence for an effect of CSC on levels of cognitive functioning at older age, results on associations with cognitive decline are mixed. We examined by means of an accelerated longitudinal design the association between CSC and cognitive trajectories from 50 to 96 years. Cognition included two functions generally found to decline with aging: delayed recall and verbal fluency. Data are from six waves of the Survey of Health, Aging, and Retirement in Europe (SHARE), conducted between 2004 and 2015 (n = 24,066 at baseline; 56% female, age 50+). We found a consistent CSC pattern in levels of cognitive functioning in later life. Older people with disadvantaged CSC had lower levels of cognitive functioning than those with more advantaged CSC. We also find that decline is almost 1.6 times faster in the most advantaged group compared with the most disadvantaged group. The faster decline for people with more advantaged CSC becomes less pronounced when we additionally control for adulthood socioeconomic conditions and current levels of physical activity, depressive symptoms, and partner status. Our findings are in line with the latency, pathway, and cumulative model and lend support to theories of cognitive reserve, stating that neuronal loss can no longer be repaired in people with more cognitive reserve once the underlying pathology is substantial and speed of decline is accelerated.

Welfare regimes modify the association of disadvantaged adult-life socioeconomic circumstances with self-rated health in old age.

BACKGROUND: Welfare regimes in Europe modify individuals' socioeconomic trajectories over their life-course, and, ultimately, the link between socioeconomic circumstances (SECs) and health. This paper aimed to assess whether the associations between life-course SECs (early-life, young adult-life, middle-age and old-age) and risk of poor self-rated health (SRH) trajectories in old age are modified by welfare regimes (Scandinavian [SC], Bismarckian [BM], Southern European [SE], Eastern European [EE]). METHODS: We used data from the longitudinal SHARE survey. Early-life SECs consisted of four indicators of living conditions at age 10. Young adult-life, middle-age, and old-age SECs indicators were education, main occupation and satisfaction with household income, respectively. The association of life-course SECs with poor SRH trajectories was analysed by confounder-adjusted multilevel logistic regression models stratified by welfare regime. We included 24 011 participants (3626 in SC, 10 256 in BM, 6891 in SE, 3238 in EE) aged 50 to 96 years from 13 European countries. RESULTS: The risk of poor SRH increased gradually with early-life SECs from most advantaged to most disadvantaged. The addition of adult-life SECs differentially attenuated the association of early-life SECs and SRH at older age across regimes: education attenuated the association only in SC and SE regimes and occupation only in SC and BM regimes; satisfaction with household income attenuated the association across regimes. CONCLUSIONS: Early-life SECs have a long-lasting effect on SRH in all welfare regimes. Adult-life SECs attenuated this influence differently across welfare regimes.

Cognitive functioning among Dutch older adults: Do neighborhood socioeconomic status and urbanity matter?

Positive associations of neighborhood socioeconomic characteristics and older adults' cognitive functioning have been demonstrated in previous studies, but overall results have been mixed and evidence from European countries and particularly the Netherlands is scarce. We investigated the effects of socioeconomic status (SES) and urbanity of neighborhoods on four domains of cognitive functioning in a sample of 985 Dutch older adults aged 65-88 years from the Longitudinal Aging Study Amsterdam. Besides cross-sectional level differences in general cognitive functioning, processing speed, problem solving and memory, we examined cognitive decline over a period of six years. Growth models in a multilevel framework were used to simultaneously assess levels and decline of cognitive functioning. In models not adjusting for individual SES, we found some evidence of higher levels of cognitive functioning in neighborhoods with a higher SES. In the same models, urbanity generally showed positive or inversely U-shaped associations with levels of cognitive functioning. Overall, effects of neighborhood urbanity remained significant when adjusting for individual SES. In contrast, level differences by neighborhood SES were largely explained by the respondents' individual SES. This suggests that neighborhood SES does not influence levels of cognitive functioning beyond the fact that individuals with a similar SES tend to self-select into neighborhoods with a corresponding SES. No evidence of systematically faster decline in neighborhoods with lower SES or lower degrees of urbanity was found. The findings suggest that neighborhood SES has no independent effect on older adults cognitive functioning in the Netherlands. Furthermore, the study reveals that neighborhood urbanity should be considered a determinant of cognitive functioning. This finding is in line with theoretical approaches that assume beneficial effects of exposure to complex environments on cognitive functioning. We encourage further investigations into the effect of urbanity in other contexts before drawing firm conclusions.

Types of Non-kin Networks and Their Association With Survival in Late Adulthood: A Latent Class Approach.

OBJECTIVES: Integration into social networks is an important determinant of health and survival in late adulthood. We first identify different types of non-kin networks among older adults and second, investigate the association of these types with survival rates. METHOD: Official register information on mortality is combined with data from the Longitudinal Aging Study Amsterdam (LASA). The sample includes 2,440 Dutch respondents aged 54-85 at baseline in 1992 and six follow-ups covering a time span of 20 years. Using latent class analysis, respondents are classified into distinct types of non-kin networks, based on differences in number and variation of non-kin relations, social support received from non-kin, and contact frequency with non-kin. Next, membership in network types is related to mortality in a Cox proportional hazard regression model. RESULTS: There are four latent types of non-kin networks that vary in network size and support. These types differ in their associations with mortality, independent of sociodemographic and health confounders. Older adults integrated into networks high in both number and variation of supportive non-kin contacts have higher chances of survival than older adults embedded in networks low in either amount or variation of support or both. DISCUSSION: A combination of structural and functional network characteristics should be taken into account when developing intervention programs aiming at increasing social integration outside the family network.

Capturing the Diversity of Successful Aging: An Operational Definition Based on 16-Year Trajectories of Functioning.

Purpose of the Study: To determine the prevalence and extent of successful aging (SA) when various suggestions proposed in the previous literature for improving models of SA are incorporated into one holistic operational definition. These suggestions include defining and measuring SA as a developmental process, including subjective indicators alongside more objective ones, and expressing SA on a continuum. Design and Methods: Data were used from 2,241 respondents in the Longitudinal Aging Study Amsterdam, a multidisciplinary study in a nationally representative sample of older adults in the Netherlands. Latent class growth analysis was used to identify successful 16-year trajectories within nine indicators of physical, cognitive, emotional, and social functioning. SA was quantified as the number of indicators in which individual respondents showed successful trajectories (range 0-9). Results: Successful trajectories were characterized by stability, limited decline, or even improvement of functioning over time. Of the respondents, 39.6% of men and 29.3% of women were successful in at least seven indicators; 7% of men and 11% of women were successful in less than three indicators. Proportions of successful respondents were largest in life satisfaction (>85%) and smallest in social activity (<25%). Correlations of success between separate indicators were low to moderate (range r = .02-.37). Implications: Many older adults age relatively successfully, but the character of successful functioning over time varies between indicators, and the combinations of successful indicators vary between individuals.

The Effects of Life Events and Socioeconomic Position in Childhood and Adulthood on Successful Aging.

OBJECTIVES: Building on social stress theory, this study has 2 aims. First, we aim to estimate the effects of stressful life events in childhood and adulthood on Successful Aging (SA). Second, we examine how unequal exposure to such life events between individuals with different socioeconomic position (SEP) contributes to socioeconomic inequalities in SA. METHOD: We used 16-year longitudinal data from 2,185 respondents aged 55-85 years in 1992 in the Dutch nationally representative Longitudinal Aging Study Amsterdam. Measurement of SA was based on earlier work, in which we integrated trajectories in 9 indicators of functioning into an index of SA. Using path analysis, we investigated direct and indirect effects of parental and adulthood SEP as well as of self-reported childhood and adulthood life events on SA. RESULTS: Almost all included life events had negative direct effects on SA. Parental SEP had no direct effect on SA, whereas adulthood SEP had. Higher Parental SEP increased the likelihood of parental problems and parental death in childhood, resulting in negative indirect effects on SA. Higher adulthood SEP had both positive and negative indirect effects on SA, through increasing the likelihood of divorce and unemployment, but decreasing the likelihood of occupational disability. DISCUSSION: SEP and particular stressful life events are largely, but not entirely independent predictors of SA. We found that high and low SEP may increase exposure to particular events that negatively affect SA. Findings suggest that low (childhood) SEP and stressful life events are interrelated factors that may limit individual opportunities to age successfully.

Social pathways to health: On the mediating role of the social network in the relation between socio-economic position and health.

Good health is one of the key qualities of life, but opportunities to be and remain healthy are unequally distributed across socio-economic groups. The beneficial health effects of the social network are well known. However, research on the social network as potential mediator in the pathway from socio-economic position (SEP) to health is scarce, while there are good reasons to expect a socio-economical patterning of networks. We aim to contribute to our understanding of socio-economic inequalities in health by examining the mediating role of structural and functional characteristics of the social network in the SEP-health relationship. Data were from the second wave of the Norwegian study on the life course, aging and generation study (NorLAG) and comprised 4534 men and 4690 women aged between 40 and 81. We applied multiple mediation models to evaluate the relative importance of each network characteristic, and multiple group analysis to examine differences between middle-aged and older men and women. Our results indicated a clear socio-economical patterning of the social network for men and women. People with higher SEP had social networks that better protect against loneliness, which in turn lead to better health outcomes. The explained variance in health in older people by the social network and SEP was only half of the explained variance observed in middle-aged people, suggesting that other factors than SEP were more important for health when people age. We conclude that it is the function of the network, rather than the structure, that counts for health.

Socioeconomic inequalities in a 16-year longitudinal measurement of successful ageing.

BACKGROUND: This study examines to what extent education, occupation and income are associated with the multidimensional process of successful ageing, encompassing trajectories of physical, mental and social functioning in old age. METHODS: We employed 16-year longitudinal data from 2095 participants aged 55-85 years at baseline in the Dutch, nationally representative Longitudinal Aging Study Amsterdam. For 9 indicators of successful ageing, separate Latent Class Growth models were used to identify subgroups of older adults with a 'successful' trajectory. A 'Successful Aging Index' expressed the number of indicators for which individual respondents had a successful trajectory (range 0-9). Using multivariate regression models, we investigated associations between socioeconomic position and the Successful Ageing Index, and with separate indicators of successful ageing. RESULTS: Higher education, occupational skill level and income were independently associated with higher numbers of successful trajectories. Education (ß=0.09) was a slightly stronger correlate of successful ageing than income (ß=0.08). Analyses of separate indicators of successful ageing showed that cognitive functioning, functional limitations and emotional support given were associated with all three components of socioeconomic position, while other indicators were associated with only one (eg, life satisfaction) or none (eg, social loneliness). For some indicators of successful ageing, socioeconomic inequalities were present at baseline, and also increased or decreased during follow-up. CONCLUSIONS: Education, occupation and income represent distinct socioeconomic life course factors, each of which contribute in a specific way to inequalities in successful ageing. Physical and cognitive functioning were associated more strongly with socioeconomic position than social and emotional functioning.

Differences in impact of long term caregiving for mentally ill older adults on the daily life of informal caregivers: a qualitative study.

BACKGROUND: Owing to the policy of extramuralization of care in most Western countries older people with severe mental illness have to rely more and more on informal caregivers for daily care. Caregivers themselves are often aged, and although caregiving implies an impact on daily life that exceeds the boundaries of usual informal care, the impact differs across caregivers. Some caregivers seem to suffer more than others, and the differences cannot be fully understood by factors currently known to exacerbate the burden of caregiving. In order to help caregivers reduce the impact of caregiving it is important to gain a deeper understanding of factors influencing the burden and its impact on the caregiver's life. With this in mind, the aim of the study is to explore and understand differences in the impact of long-term caregiving on the quality of life of caregivers who look after older adults with severe mental illness. METHODS: A qualitative, associative, inductive strategy and continuous simultaneous coding were used to interpret the data of 19 semi-structured interviews. RESULTS: We identified an underlying psychological factor "perceived freedom of choice" which explains the gross differences in impact, leading to a definition of two main types of caregivers. Depending on how people perceive freedom of choice to provide care, the consequences of caregiving can be characterized as a process of gain (type 1) or loss (type 2). Four influential factors deepen the impact of caregiving for the type 2 caregivers, and two subtypes are identified for this category. Consequences of caregiving are most readily seen in a deteriorating quality of the relationship with the care recipient and in the psychosocial well-being of the caregiver. CONCLUSIONS: The concept of freedom of choice adds to our understanding of the differences and explains the variation in impact on the caregivers' life. The type 1 caregiver generally experiences gain whereas type 2 generally experiences loss, which puts the latter group typically at risk of becoming overloaded. Whether people perceive that they have freedom of choice in caregiving is an important consideration in evaluating the type of intervention needed to support caregivers.

Activity in older adults: cause or consequence of cognitive functioning? A longitudinal study on everyday activities and cognitive performance in older adults.

The impact of three types of everyday activities (i.e., social, experiential, and developmental) on four cognitive functions (i.e., immediate recall, learning, fluid intelligence, and information-processing speed) and one global indicator of cognitive functioning (Mini-Mental State Exam score) over a period of 6 years was studied in a large 55--85 year-old population-based sample (N = 2,076). A cross-lagged regression model with latent variables was applied to each combination of 1 cognitive function and 1 type of activity, resulting in 15 (3 x 5) different models. None of the activities were found to enhance cognitive functioning 6 years later when controlling for age, gender, level of education, and health, as well as for unknown confounding variables. Conversely, one cognitive function (i.e., information-processing speed) appeared to affect developmental activity. It is suggested that no specific activity, but rather socioeconomic status to which activities are closely connected, contributes to maintenance of cognitive functions.