Generational and Social Forces in the Life Events and Experiences of Lesbian and Gay Midlife and Older Adults Across the Iridescent Life Course

ObjectivesUtilizing Iridescent Life Course, we examine life events among three generations of lesbian and gay adults: Invisible (born 1920-1934), Silenced (born 1935-1949), and Pride (born 1950-1964) Generations. Methods: We utilized a subsample (n = 2079) from the 2014 wave of Aging with Pride: National Health, Aging, and Sexuality/Gender Study (NHAS). Demographic characteristics, life events, and gender and generational interactions were compared. Results: Compared to other generations, the Invisible Generation disclosed their identity at older ages, were more likely to be retired, served in the military, and survived a partner's death. Compared to the other generations, the Pride Generation was more likely to have disclosed their identities earlier and experienced higher levels of victimization/discrimination. Discussion: This paper is the first to examine the lived experiences of the oldest lesbians and gay men and compare them to other generations. The findings illustrate the heteronormative nature of most life course research.

Socioeconomic Positions and Midlife Health Trajectories in a Changing Social Context: Evidence from China, 1991-2006

Cumulative (dis)advantage theory posits that socioeconomic disparities in health may increase with age. This study examines individuals' midlife health trajectories, taking account of how their life courses are embedded within changing social contexts. Using the China Health and Nutrition Survey (1991-2006), it examines the health gap between Chinese rural peasants and urban nonpeasants in three adjacent time periods, during which a rapid process of social change increased the inequalities between rural and urban areas. Findings show that the health gap increases more rapidly in the more recent time periods, with higher levels of inequality, indicating that health inequalities between the two groups are contingent upon the social contexts in which individuals' lives unfold. To better understand the differences observed over these time periods, further analysis will examine the roles of two structural factors: income inequality and differential access to medical care.

Intersecting Early-Life Selection Mechanisms: Socio-Historical Changes in Racially Stratified Effects of Education on Functional Limitations in the United States

OBJECTIVE

Scant research has focused on the role of sociohistorical changes in shaping intersecting early-life selection mechanisms and their impacts on racially stratified effects of education on health across cohorts.

METHOD

Drawing from the Health and Retirement Survey, this study fitted negative binomial regression models to assess the impacts of childhood socioeconomic status (SES) on the relationship between education and functional limitations for Black and White adults across birth cohorts (n = 16,269, born 1931-1959).

RESULTS

The disparities between Black adults and White adults in impacts of childhood SES on both education and functional limitations were more pronounced in recent cohorts. The racial stratification in the impacts of education on functional limitations was documented across cohorts. However, after adjusting for childhood SES, this stratification narrowed considerably in recent cohorts.

DISCUSSION

This study underscores the role of a sociohistorical context in shaping the effects of education on health at the intersection of race and cohort.

The Long Arm of Childhood: Does It Vary According to Health Care System Quality?

Increasing evidence points to the salience of early life experiences in shaping health inequalities, but scant research has considered the role of institutional resources as buffers in this relationship. Health care systems in particular are an understudied yet important context for the generation of inequalities from childhood into adulthood. This research investigates associations between childhood disadvantage and adult morbidity and examines the role of health care system quality in this relationship. We also consider the role of adult socioeconomic status. We merge individual-level data on major disease (2014 European Social Survey) with nation-level health care indicators. Results across subjective and objective approaches to health care system quality are similar, indicating a reduced association between childhood socioeconomic status and adult disease in countries with higher quality health care. In total, our results reiterate the long-term influence of childhood disadvantage on health while suggesting health care's specific role as an institutional resource for ameliorating life course health inequalities.

Health outcomes of only children across the life course: An investigation using Swedish register data

Only children (with no full biological siblings) are a growing subgroup in many high-income settings. Previous studies have largely focused on the short-term developmental outcomes of only children, but there is limited evidence on their health outcomes. Using Swedish population register data for cohorts born 1940-75, we compare the health of only children with that of children from multi-child sibling groups, taking into account birth order, family size, and presence of half-siblings. Only children showed lower height and fitness scores, were more likely to be overweight/obese in late adolescence, and experienced higher later-life mortality than those with one or two siblings. However, only children without half-siblings were consistently healthier than those with half-siblings, suggesting that parental disruption confers additional disadvantages. The health disadvantage was attenuated but not fully explained by adjustment for parental characteristics and after using within-family maternal cousin comparison designs.

Socially stratified associations between self-employment and health among Chilean older people

Non-standard forms of employment, such as self-employment, are among the most prevalent routes for older people to access the workforce. While the financial benefits of any form of self-employment in later life have been widely acknowledged, less is known about their impact on health. This study explores the association between self-employment and 16 health outcomes among older people with different social stratification characteristics in Chile, a developing country experiencing rapid population ageing. We rely on a rich representative life history survey of Chilean men and women between the ages 65 and 75 years (N = 802) living in the capital Santiago, weighted sequence analysis to reconstruct employment histories and weighted regression analysis to measure the association between self-employment and health in later life. All our analyses are adjusted by both individual lifetime health indicators and employment trajectories. Our results show that being self-employed relative to not working is positively associated with health in seven out of 16 outcomes. More surprisingly, those in a self-employment position seem to enjoy better health outcomes, particularly among the less educated and lower-income levels. These stratified associations raise questions about how these individuals enjoy better health despite facing adverse social conditions.

Life course research in physical activity: Pathway to Global Action Plan 2030

Current global trends in physical activity levels demonstrate that the world is not on track to achieve the 2030 target set by the Global Action Plan. The Action Plan posited that physical activity should be an integral component of "daily lives" of all individuals "across the life course." Potential contributions to achieve global physical activity goals include the utilization of compositional data analysis and life course epidemiology to provide a framework for the composite nature of physical activity and complex life course relationships. Combining these two traditionally disconnected fields represents a paradigm shift in physical activity research. Here, we discuss how these combined fields enable a reinterpretation of previous research findings and explore their impact on policy and potential advantages and challenges. Careful consideration needs to be given to the implications of both fields remaining disconnected and the alternate option of consolidation to realize ambitions.

Social Support, Identity Affirmation, and Psychological Well-Being: A Developmental and Intersectional Comparison between Italian Cisgender and Non-Binary People with Bisexual Orientation

Incorporating the perspectives of positive psychology, intersectionality, and life course into minority stress theory, this study aimed to examine the relationships between social support, identity affirmation, and psychological well-being among 483 Italian individuals with bisexual orientation, accounting for differences in gender identity (cisgender vs. non-binary) and age groups (young, early, and middle adult). A mediation model was tested in which identity affirmation served as a presumed mediator between social support and psychological well-being. We also examined whether gender identity and age group moderated the hypothesized associations. Multivariate ANOVA and multigroup mediation analyses were conducted. Results showed that (a) cisgender individuals had higher social support and psychological well-being than non-binary individuals, but not identity affirmation, which was higher in the latter group, (b) psychological well-being, but not social support and identity affirmation, differed between groups, with the youngest cohort reporting worse health than their elders, (c) identity affirmation mediated the relationship between social support and psychological well-being, (d) mediation was significant only in binary individuals (compared to cisgender), whereas no age differences were found. Overall, this study highlights the need to consider bisexual individuals as a nonhomogeneous population living multiple life experiences, especially when minority identities intersect.

Parenthood as a Window of Opportunity for Dietary Changes: Perspectives From Uruguayan Parents

Research on behavioral and social science has demonstrated that transitions throughout a person's life course, as the life event of becoming a parent, represent an opportunity for dietary changes. However, research in this area has been mostly restricted to developed European and North American countries and has shown ambiguous results. The present work aimed to gain an in-depth understanding on the changes in eating habits caused by the transition to parenthood and to explore factors influencing those changes in Uruguay, a Latin American country. Forty-two in-depth interviews with Uruguayan parents from diverse social-economic backgrounds were conducted. The narrations by the interviewees evidenced mostly positive changes during three stages in the transition: pregnancy, the first months with the baby, and the beginning of complementary feeding. Most informants perceived changes mainly in terms of increased consumption of fruits, vegetables, and pulses; increased consumption of homemade meals; and decreased consumption of ultra-processed foods, fast foods, and fried foods. Reasons for these changes included adaptation of meals to the child's needs and schedule, feeling of responsibility for the child's health, and willingness to be a good role model. Factors influencing changes in eating habits were identified in some levels of the socioecological model and included socioeconomic status; price of fruits, vegetables, and fish; low accessibility of good quality fish; perceived time pressure; father's low interest on healthy eating; social support; and access to nutrition information. Findings suggest that parenthood represents a window of opportunity for favorable changes in eating habits. However, barriers constraining those changes should be addressed by stakeholders.

Exploring the Relationship Between Engagement in Enriching Early-Life Activities During Adolescence and Cognition in Later-Life: Results From the Health and Retirement Study

The cognitive benefits associated with mid- to late-life engagement have been demonstrated in several studies. However, the link between engagement in enriching early-life activities (EELAs) during adolescence and later-life cognition has been relatively unexplored in major epidemiological studies. We examined the EELA-cognition relationship in a nationally representative sample of adults aged 50+. A subset of Health and Retirement Study respondents (n=3482) completed cognitive tests and returned a retrospective early-life activity inventory. Linear regression models analyzed the EELA-cognition relationship, and multiple imputation addressed missingness. Each additional EELA was associated with a 0.36 point higher cognitive score (95% CI: 0.24, 0.47). This relationship remained significant after adjusting for potential confounders (B=0.16; 95% CI: [0.06, 0.26]). EELA engagement was associated with better later-life cognitive performance. This study is understood to be the first to examine the EELA-cognition relationship using a large, nationally representative dataset. The findings highlight the importance of early-life engagement during an important developmental period (e.g., adolescence).

Influence of Farm Environment on Asthma during the Life Course: A Population-Based Birth Cohort Study in Northern Finland

We investigated the influence of a farming environment on asthma at three time points from birth to 46 years using the Northern Finland Birth Cohort 1966 (n = 10,926). The prevalence of asthma was investigated by postal questionnaires at 14, 31 and 46 years of age. Exposure to a farming environment was assessed by a postal questionnaire at birth and at 31 and 46 years of age. Odds ratios (ORs) and their 95% confidence intervals (95% CIs) for the prevalence of asthma were obtained from multinomial logistic regression, stratified by sex. Being born in a farmer family was potentially causally associated with lower risk of asthma in males at 31 years of age (OR 0.56, 95% CI 0.37, 0.85) and in females at 46 years of age (OR 0.64, 95% CI 0.44, 0.95). Working as a farmer was not associated with asthma. Exposure to a farming environment in childhood may have a lifelong impact on developing asthma from birth through young adulthood and until middle age, indicating that 'immune deviation' may persist throughout life.

Women's Employment-Family Trajectories and Well-Being in Later Life: Evidence From France

Objective: Previous research in various countries has found that employment-family trajectories characterized by early or single motherhood, or weak ties to employment, are associated with poor well-being among older women. Our paper explores whether this differs (1) in France, characterized by a high female employment rate and supportive family policies; (2) across dimensions of well-being. Method: We used the Health and Occupational Itinerary survey to identify 10 common patterns of employment-family trajectories (derived from multi-channel sequence analysis) and analysed their association with six indicators of well-being in 2010 (N = 2882 50-78 years old women). Results: Continuous full-time employment is associated with better well-being, except for women who had a first child around 24 years old, who reported increased anxiety and lack of support. Discussion: Employed mothers' well-being seems to be protected in a context of family friendly policies, but we identified one group with lower well-being, which merits further study.

Adolescent Psychological Assets and Cardiometabolic Health Maintenance in Adulthood: Implications for Health Equity

Background Positive cardiometabolic health (CMH) is defined as meeting recommended levels of multiple cardiometabolic risk factors in the absence of manifest disease. Prior work finds that few individuals-particularly members of minoritized racial and ethnic groups-meet these criteria. This study investigated whether psychological assets help adolescents sustain CMH in adulthood and explored interactions by race and ethnicity. Methods and Results Participants were 3478 individuals in the National Longitudinal Study of Adolescent Health (49% female; 67% White, 15% Black, 11% Latinx, 6% other [Native American, Asian, or not specified]). In Wave 1 (1994-1995; mean age=16 years), data on 5 psychological assets (optimism, happiness, self-esteem, belongingness, and feeling loved) were used to create a composite asset index (range=0-5). In Waves 4 (2008; mean age=28 years) and 5 (2016-2018; mean age=38 years), CMH was defined using 7 clinically assessed biomarkers. Participants with healthy levels of ≥6 biomarkers at Waves 4 and 5 were classified as maintaining CMH over time. The prevalence of CMH maintenance was 12%. Having more psychological assets was associated with better health in adulthood (odds ratio [OR]_{linear trend}, 1.12 [95% CI, 1.01-1.25]). Subgroup analyses found substantive associations only among Black participants (OR, 1.35 [95% CI, 1.00-1.82]). Additionally, there was some evidence that racial and ethnic disparities in CMH maintenance may be less pronounced among participants with more assets. Conclusions Youth with more psychological assets were more likely to experience favorable CMH patterns 2 decades later. The strongest associations were observed among Black individuals. Fostering psychological assets in adolescence may help prevent cardiovascular disease and play an underappreciated role in shaping health inequities.

Does Education Influence Life-Course Depression in Middle-Aged and Elderly in China? Evidence from the China Health and Retirement Longitudinal Study (CHARLS)

Mental health problems have become a major public health problem worldwide and are more common among middle-aged and elderly people in China. Research on the effect of education on depression is limited, and whether the relationship between education and depression changes over the life course remains unclear. This study was based on the cross-sectional data of 15,767 middle-aged and elderly individuals in the 2018 tracking survey (Wave 4) of the China Health and Retirement Longitudinal Study (CHARLS) database. Multiple linear regression and bootstrap methods were developed to detect the mediating effect of education on depression. In all samples or different age groups, education was significantly positively associated with depression. Three mediators (economic level, health-related lifestyle, and cognitive level) were significantly positively associated with depression, and cognitive level had a greater effect on depression than economic level and health-related lifestyle. The total, direct, and indirect effects of the whole samples and elderly samples were significant; however, the direct effect of the middle-aged samples was insignificant, and the total and indirect effects of the three mediating pathways were all significant, that is, economic level, health-related lifestyle, and cognitive level should produce complete mediation. The multiple linear regression and bootstrap methods could successfully detect the mediating effect of education on depression. On the basis of the education, economic level, health-related lifestyle, cognitive level, and depression of middle-aged and elderly people, we established and compared the total, direct, and mediating effects of education on depression under the life course. The mediating variables should be further increased, and the measurement methods of depression should be developed to improve the credibility of the research results.

Prognostic accuracy of the one-legged balance test in predicting falls: 15-years of midlife follow-up in a British birth cohort study

Introduction

The one-legged balance test is a common screening tool for fall risk. Yet, there is little empirical evidence assessing its prognostic ability. The study aims were to assess the prognostic accuracy of one-legged balance performance in predicting falls and identify optimal cut-points to classify those at greater risk.

Methods

Data from up to 2,000 participants from a British birth cohort born in 1,946 were used. The times an individual could stand on one leg with their eyes open and closed were recorded (max: 30 s) at ages 53 and 60-64. Number of falls in the past year was self-reported at ages 53, 60-64 and 68; recurrent falls (0-1 vs. 2+) and any fall (0 vs. 1+) were considered binary outcomes. Four longitudinal associations between balance times and subsequent falls were investigated (age 53 → 60-64; age 53 → 68; age 60-64 → 68; age 53 & 60-64 → 68). For each temporal association, areas under the curve (AUC) were calculated and compared for a base sex-only model, a sex and balance model, a sex and fall history model and a combined model of sex, balance and fall history. The Liu method was used to identify optimal cut-points and sensitivity, specificity, and AUC at corresponding cut-points.

Results

Median eyes open balance time was 30 s at ages 53 and 60-64; median eyes closed balance times were 5 s and 3 s, respectively. The predictive ability of balance tests in predicting either fall outcome was poor (AUC range for sex and balance models: 0.577-0.600). Prognostic accuracy consistently improved by adding fall history to the model (range: 0.604-0.634). Optimal cut-points ranged from 27 s to 29 s for eyes open and 3 s to 5 s for eyes closed; AUC consistently indicated that using "optimal" cut-points to dichotomise balance time provided no discriminatory ability (AUC range:0.42-0.47), poor sensitivity (0.38-0.61) and poor specificity (0.23-0.56).

Discussion

Despite previous observational evidence showing associations between better one-legged balance performance and reduced fall risk, the one-legged balance test had limited prognostic accuracy in predicting recurrent falls. This contradicts ongoing translation of this test into clinical screening tools for falls and highlights the need to consider new and existing screening tools that can reliably predict fall risk.

Impact of Moderate-Vigorous Physical Activity Trajectories on Colon Cancer Risk over the Adult Life Course

BACKGROUND

Moderate-vigorous physical activity (MVPA) reduces colon cancer risk; however, it is unclear how the timing of MVPA throughout the adult life course impacts colon cancer risk. We evaluated whether maintenance and changes in MVPA levels over time are associated with colon cancer risk.

METHODS

We assessed 293,198 adults ages 50 to 71 years in the NIH-AARP Diet and Health Study. Participants completed baseline health and physical activity questionnaires between 1995 and 1997 and were followed through 2011, (average follow-up of 13.1 years). There were 5,072 colon cancer cases over the study period. Using latent class trajectory models, we identified seven distinct MVPA trajectories across the adult life course (15-18, 19-29, 30-35, and past 10-years) and ran Cox proportional hazards regression models.

RESULTS

Compared with those who maintained low MVPA levels, those who maintained high and moderate levels of MVPA had a lower risk of colon cancer [HR, 0.85; confidence interval (CI), 0.78-0.93; HR = 0.87; CI, 0.76-1.00)], and those who increased MVPA levels early and later during adulthood had a lower colon cancer risk (HR, 0.90; CI, 0.80-1.01) and (HR, 0.92; CI, 0.80-1.06), respectively. Those who decreased MVPA early in adulthood had an increased risk of colon cancer (HR, 1.12; CI, 1.02-1.23). These associations were stronger in adults ages <65 years at baseline and in men (P < 0.001).

CONCLUSIONS

Consistent participation in MVPA throughout life may reduce colon cancer risk.

IMPACT

These findings emphasize that engaging in MVPA throughout adulthood lowers risk of colon cancer.

Secondary Data Analysis of ENETS Survey: Different Age Workers have Different Priorities When Evaluating Life Satisfaction

Do factors impacting life satisfaction remain stable, or do they change, during the life course of workers? This study analyses the relationships between life satisfaction and age. This study is a secondary analysis of data from ENETS a health and working conditions survey. Workers were grouped into 5 age ranges. A scale of life satisfaction was analyzed, investigating aspects such as income, level of debt, physical and mental health, among others. The confirmatory factor analysis (CFA) showed that 4 of the 5 age ranges have a unifactorial structure, but for those under 30 years of age, 2 factors associated with "psychophysical well-being" and "material well-being" were identified. Thus, at different stages of productive life different priorities affect life satisfaction, this should be considered to optimize the human resources management.

Connecting Fathers: Fathers' Impact on Adult Children's Social Networks

We examine the relationship between having an emotionally close and active father in an adult child's social network compared to having a father who is not close, or a father who was not named. We hypothesize that fathers provide both essential and important contributions to their children's psychosocial development, and those contributions continue into active adulthood. Using the 2015 UC Berkeley Social Networks Study (UCNets), we find that adult children who name an emotionally close father in their network tend to have more males as social ties, but not more female ties. We conclude that fathers continue to play an important and active role in their children's lives long after childhood.

Life-course fertility and multimorbidity among middle-aged and elderly women in China: Evidence from China health and retirement longitudinal study

Background

Multimorbidity has become an important public health problem in China, especially among middle-aged and elderly women. Few studies have been reported on the association between multimorbidity and female fertility, which is an important stage in the life course. This study aimed to explore the association between multimorbidity and fertility history among middle-aged and elderly women in China.

Methods

Data from 10,182 middle-aged and elderly female participants in the China Health and Retirement Longitudinal Study (CHARLS) in 2018 were used in this study. Multimorbidity was defined as the presence of at least two or more chronic conditions. Logistic regression analysis, negative binomial regression analysis, and restrictive cubic splines (RCSs) were used to analyze the relationship between female fertility history and multimorbidity or the number of chronic conditions. Multivariable linear regression was used to analyze the relationship between female fertility history and multimorbidity pattern factor scores.

Results

The results of this study showed that high parity and early childbearing were significantly associated with an increased risk of multimorbidity and an increased number of chronic conditions among middle-aged and elderly women in China. Late childbearing was significantly associated with reduced risk of multimorbidity and lessened diseases. Parity and age of first childbirth were significantly correlated with the odds of multimorbidity. The association between fertility history and multimorbidity was found to be influenced by age and urban-rural dual structure. Women with high parity tend to have higher factor scores of cardiac-metabolic, visceral-arthritic, and respiratory-psychiatric patterns. Women with early childbearing tended to have higher factor scores of the visceral-arthritic pattern and those with late childbearing tended to have lower factor scores of the cardiac-metabolic pattern.

Conclusion

Fertility history has a significant effect on multimorbidity in the middle and later lives of Chinese women. This study is of great importance for reducing the prevalence of multimorbidity among Chinese women through their life course and promoting health during their middle and later lives.

Traditional and biomedical health practices of adolescent boys and young men living with perinatally-acquired HIV in the Eastern Cape Province of South Africa

Men are less vulnerable to HIV acquisition than women, but have poorer HIV-related health outcomes. They access HIV services less, and are more likely to die on antiretroviral therapy. The adolescent epidemic presents further challenges, and AIDS-related illness is the leading cause of death among adolescents in sub-Saharan Africa. We explored the health practices of adolescent boys and young men (aged 13-22) living with perinatally-acquired HIV and the processes through which these practices are formed and sustained. We engaged health-focused life history narratives (n = 35), semi-structured interviews (n = 32) and analysis of health facility files (n = 41), alongside semi-structured interviews with traditional and biomedical health practitioners (n = 14) in the Eastern Cape, South Africa. Participants did not access traditional products and services for HIV, a finding that deviates from much of the literature. Findings suggest that health practices are mediated not only by gender and culture, but also childhood experiences of growing up deeply embedded in the biomedical health system.

Association between adverse childhood experiences and later-life allostatic load in UK Biobank female participants

BACKGROUND

Adverse childhood experiences during key developmental periods have been shown to impact long-term health outcomes. Adverse childhood experiences may include psychological, physical, or sexual abuse; neglect; or socioeconomic factors. Adverse childhood experiences are linked with an increase in poor health behavior such as smoking and alcohol consumption, and may also influence epigenetic changes, inflammatory response, metabolic changes, and allostatic load.

OBJECTIVE

We sought to explore associations between adverse childhood experiences and allostatic load in adult female participants in the UK Biobank.

DESIGN

The UK Biobank is a multisite cohort study established to capture lifestyle, environment, exposure, health history, and genotype data on individuals in the United Kingdom.

METHODS

Adverse childhood experiences were assessed from the Childhood Trauma Screener, which measures abuse and neglect across five items. Biological measures at enrollment were used to construct allostatic load, including measures of metabolic, inflammatory, and cardiovascular function. Females with a cancer diagnosis prior to enrollment were removed as it may influence allostatic load. Poisson regression models were used to assess the association between adverse childhood experiences and allostatic load, accounting for a priori confounders.

RESULTS

A total of 33,466 females with complete data were analyzed, with a median age at enrollment of 54 (range = 40-70) years. Among the study sample, the mean allostatic load ranged from 1.85 in those who reported no adverse childhood experiences to 2.45 in those with all adverse childhood experiences reported. In multivariable analysis, there was a 4% increase in average allostatic load among females for every additional adverse childhood experience reported (incidence rate ratio = 1.04, 95% confidence interval = 1.03-1.05). Similar results were observed when assessing individual adverse childhood experience components.

CONCLUSION

This analysis supports a growing body of evidence suggesting that increased exposure to early life abuse or neglect is associated with increased allostatic load in females.

Filial Caregiving and Chinese Adults' Depressive Symptoms: Do Early-Life Parent-Child Relationships Matter?

This study investigated the association between caregiving time and depressive symptoms among Chinese adult children aged 45 and above, and whether early-life relationships with parents moderated the association. We used data from the 2011, 2013, and 2018 waves of China Health and Retirement Longitudinal Study (CHARLS) and the 2014 CHARLS Life History Survey, which included 4781 respondents with living mothers and 2710 respondents with living fathers. Results from multilevel models showed that caregiving time for mothers or fathers was not significantly associated with adults' depressive symptoms in general. However, more caregiving time for mothers was significantly associated with more depressive symptoms among respondents experiencing more frequent maternal childhood physical abuse. Altogether, childhood maltreatment may affect levels of caregiving stress decades later. Filial caregivers with a history of childhood physical abuse may require support.

Global pain and aging: A cross-sectional study on age differences in the intensity of chronic pain among middle-aged and older adults in 20 countries

OBJECTIVES

This study aims to examine age differences in the intensity of chronic pain among middle-aged and older adults, where intensity is measured on a scale differentiating between chronic pain that is often troubling and likely requires intervention versus more endurable sensations. We aim to explore whether individual health and national gross domestic product (GDP) explain these differences as well.

METHODS

Cross-nationally harmonized data from 20 countries on self-reported intensity of chronic pain (0=no, 1=mild, 2=moderate, 3=severe) in 104,826 individuals aged 50+ observed in 2012-2013. Two-level hierarchical ordinal linear models with individuals nested within countries were used to isolate estimations from heterogeneity explained by methodological differences across single-country studies.

RESULTS

Overall, mean participant age was 66.9 (SD=9.9), 56.1% were women, and 41.9% of respondents reported any chronic pain. Chronic pain intensity rose sharply with age in some countries (e.g., Korea and Slovenia), but this association waned or reversed in other countries (e.g., the USA and Denmark). Cross-country variation and age differences in chronic pain were partly explained (85.5% and 35.8%, respectively) by individual-level health (especially arthritis), country-level wealth (as indicated by GDP per capita), and demographics.

DISCUSSION

Chronic pain intensity is not an inevitable consequence of chronological age, but the consequence of potential selection effects and lower activity levels combined with individual-level health and country-level wealth. Our findings suggest further investigation of health conditions and country affluence settings as potential targets of medical and policy interventions aiming to prevent, reduce, or manage chronic pain among older patients and aging populations.