Socioeconomic position and health: the differential effects of education versus income on the onset versus progression of health problems

Integrating the social determinants of health into curriculum: AMEE Guide No. 162

The World Health Organization (WHO) defines the Social Determinants of Health (SDOH) as the non-medical factors influencing health outcomes. SDOH is associated with conditions in which people are born, grow, work, and live. Medical schools and licensing bodies are increasingly recognizing the need for doctors and healthcare professionals to be aware of their patient's social context and how it impacts their states of health and disease. However, there is considerable variation in the approaches of different institutions and countries to incorporating SDOH into their curricula. In order to allow clinicians to adopt a holistic approach to patient health, equipping them with extensive knowledge of SDOH would give learners the confidence, skills, knowledge, and attitudes needed to effectively engage with patients and their families. This approach aids health professionals with knowledge of the influence of the social context and cultural factors that affect patients' behaviors in relation to health. Incorporating the SDOH in medical and health professional school curricula would contribute towards adequately preparing future healthcare practitioners to provide effective, comprehensive, and equitable care, especially to marginalized and underserved populations. The Guide will take an evidence-based approach grounded in the available contemporary literature and case studies. The focus will be on integrating SDOH into undergraduate and postgraduate medical curricula to promote an understanding of the social factors that influence patients' and communities' health. Ultimately, this guide seeks to contribute to the reduction of inequalities in health.

Socioeconomic position indicators and risk of alcohol-related medical conditions: A national cohort study from Sweden

BACKGROUND

Alcohol consumption contributes to excess morbidity and mortality in part through the development of alcohol-related medical conditions (AMCs, including alcoholic cardiomyopathy, hepatitis, cirrhosis, etc.). The current study aimed to clarify the extent to which risk for these outcomes differs as a function of socioeconomic position (SEP), as discrepancies could lead to exacerbated health disparities.

METHODS AND FINDINGS

We used longitudinal Swedish national registries to estimate the individual and joint associations between 2 SEP indicators, educational attainment and income level, and risk of AMC based on International Classification of Diseases codes, while controlling for other sociodemographic covariates and psychiatric illness. We conducted Cox proportional hazards models in sex-stratified analyses (N = 1,162,679 females and N = 1,196,659 males), beginning observation at age 40 with follow-up through December 2018, death, or emigration. By the end of follow-up, 4,253 (0.37%) females and 11,183 (0.93%) males had received an AMC registration, corresponding to overall AMC incidence rates among females and males of 2.01 and 5.20, respectively. In sex-stratified models adjusted for birth year, marital status, region of origin, internalizing and externalizing disorder registrations, and alcohol use disorder (AUD) registration, lower educational attainment was associated with higher risk of AMC in both females (hazard ratios [HRs] = 1.40 to 2.46 for low- and mid-level educational attainment across 0 to 15 years of observation) and males (HRs = 1.13 to 1.48). Likewise, risk of AMC was increased for those with lower income levels (females: HRs = 1.10 to 5.86; males: HRs = 1.07 to 6.41). In secondary analyses, we further adjusted for aggregate familial risk of AUD by including family genetic risk scores for AUD (FGRSAUD), estimated using medical, pharmacy, and criminal registries in extended families, as covariates. While FGRSAUD were associated with risk of AMC in adjusted models (HR = 1.17 for females and HR = 1.21 for males), estimates for education and income level remained largely unchanged. Furthermore, FGRSAUD interacted with income level, but not education level, such that those at higher familial liability to AUD were more susceptible to the adverse effect of low income. Limitations of these analyses include the possibility of false negatives for psychiatric illness registrations, changes in income after age 40 that were not accounted for due to modeling restrictions, restriction to residents of a high-income country, and the inability to account for individual-level alcohol consumption using registry data.

CONCLUSIONS

Using comprehensive national registry data, these analyses demonstrate that individuals with lower levels of education and/or income are at higher risk of developing AMC. These associations persist even when accounting for a range of sociodemographic, psychiatric, and familial risk factors. Differences in risk could contribute to further health disparities, potentially warranting increased screening and prevention efforts in clinical and public health settings.

The differential influence of self-construal on the effect of self-efficacy on the help-seeking process: A quasi-experimental online study among people with untreated depressive symptoms

BACKGROUND

Despite available professional healthcare, people often delay or avoid help-seeking. Understanding the underlying reasons is crucial and research has explored the role of self-efficacy in this context. Additionally, studies have highlighted the significance of culturally influenced self-construals in individuals' health behaviour. There seems to be a relationship between self-efficacy and self-construal. The aim of the study is to explore the influence of self-efficacy on help-seeking, considering self-construal as a moderator. Differential experiences of self-efficacy and varying associations among help-seeking variables based on self-construal are posited.

METHODS

A quasi-experimental online study is conducted with a baseline assessment, including self-efficacy interventions, and follow-ups at three and six months. Self-construal groups are compared, i.e., independent vs. interdependent individuals. A series of multi-group path analyses are conducted to examine potential variations in the interventional effects and among the help-seeking variables respective of help-seeking instance, i.e. professional mental health care or informal care. Self-construal functions as the global moderator.

RESULTS

The study included N = 1'368 participants, 65.6 % identifying as female and an average age of 42.38 (SD = 15.22). More independent compared to more interdependent individuals were older, more frequently identified as male, had higher socioeconomic status, fewer depressive symptoms, and greater self-efficacy. Multi-group path analyses for professional mental health care (CFI = 0.992, RMSEA = 0.018, SRMR = 0.004) and informal help (CFI = 0.999, RMSEA = 0.004, SRMR = 0.006) demonstrated excellent model fits. The analysis for informal help was interpretable, as the unconstrained model had a significantly better fit than the constrained model. There were varying associations among help-seeking variables based on self-construals. The intervention effect was differential, with independent participants benefiting significantly (β = 0.203), while the effect was non-significant for interdependent participants.

DISCUSSION

The study's findings, strengths, and limitations are discussed in relation to current research. Results indicate differential experiences of self-efficacy interventions based on individuals' self-construal. Moreover, varying associations among help-seeking variables suggest self-construal-based differences in their interrelationships. These findings highlight the importance of considering self-construal in health related research.

Functional limitation in the older Brazilian adults: Association with multimorbidity and socioeconomic conditions

The aim of this study was to assess the association between multimorbidity and the presence of functional limitation in basic (BADL) and instrumental activities of daily living (IADL) among Brazilian older adults and to verify whether this association is moderated by socioeconomic conditions. Cross-sectional study with data from the Brazilian National Health Survey (PNS) (2019) for the Brazilian population aged 60 years and over. The dependent variables were functional limitation, based on self-reported difficulty in performing one or more activities of daily living, including six BADL (feeding, bathing, using the toilet, dressing, crossing a room on the same floor and getting out of bed) and four IADL (shopping, managing money, taking medication and using transportation). The independent variables were multimorbidity (presence of two or more self-reported chronic diseases) and socioeconomic measures (per capita household income, asset score, and education level). The association between multimorbidity and outcomes was assessed using adjusted logistic regression models. The moderating effect of socioeconomic conditions on the association between multimorbidity and functional limitations was assessed by including an interaction term. The final sample consisted of 22,725 individuals. The prevalence of functional limitation was 8.5% (95%CI: 7.9-9.2) and 18.6% (95%CI: 17.8-19.5) in BADL and IADL, respectively. Multimorbidity was associated with BADL [OR: 2.30 (95%CI: 1.93-2.74)] and IADL [OR: 2.26 (95%CI: 1.98-2.57)]. The odds of functional limitation were higher among individuals with lower levels of education and income, but there was no interaction between multimorbidity and socioeconomic position measures. Multimorbidity was associated with functional limitation (BADL and IADL) and socioeconomic conditions, and this association was constant across socioeconomic position levels.

The Incidence, Prevalence and Mortality Rates of Black and White Persons with HIV in the United States in 2019

INTRODUCTION

This study examines the experience of non-Hispanic Black Americans (hereinafter referred to as Black persons) and non-Hispanic White Americans (hereinafter referred to as White persons) with regard to the incidence (i.e., number of persons diagnosed with HIV), prevalence (i.e., number of persons living with HIV), and mortality rates of persons with HIV in the United States in 2019. With regard to mortality rates, this study examines the mortality rate of all Black persons and White persons with HIV in 2019 as well as the mortality rate of hospitalized Black persons and White persons with HIV in 2019.

METHODS

Data on the racial characteristics of all persons in the United States in 2019 were obtained from the United States Census Bureau, and data on the racial characteristics of all persons with HIV in the United States were obtained from HIV Surveillance Reports produced by the Centers for Disease Control and Prevention (CDC). In addition, data on all hospital patients in seven states (California, Florida, Michigan, New Jersey, New York, South Carolina and Wisconsin) in 2019 were obtained from the Agency for Healthcare Research and Quality (AHRQ) Hospital Cost and Utilization Project (HCUP) State Inpatient Database (SID). These seven states included 44 percent of all persons living with HIV in the United States in 2019.

RESULTS

This study found that Black persons were more likely to be diagnosed with HIV, live with HIV, and die with HIV than White persons in the United States. This is illustrated by the fact that in 2019 Black persons comprised 13.4 percent of the population, yet they comprised 42.1 percent of persons diagnosed with HIV, 40.4 percent of persons living with HIV, and 42.9 percent of persons who died with HIV. By comparison, in 2019 White persons comprised 76.3 percent of the population, yet they comprised 24.8 percent of persons diagnosed with HIV, 29.1 percent of persons living with HIV, and 31.8 percent of persons who died with HIV. Nevertheless, this study did not find a statistically significant difference between the in-hospital mortality rates of Black and White persons in seven states in 2019.

CONCLUSIONS

The burden of HIV was considerably greater on Black persons than White persons in the United States in 2019.

The association between socioeconomic status and C-reactive protein in Bayesian perspective

•This study analyzed the total health inequality on risks of chronic inflammation.•We used Bayesian multiple and distributional regression models.•Between-group posterior distributions show a robust educational gradient in health.•Within-group posterior distributions show polarized risks for individuals.

COVID-19 Pandemic as an Equalizer of the Health Returns of Educational Attainment for Black and White Americans

BACKGROUND

COVID-19 pandemic has immensely impacted the social and personal lives of individuals around the globe. Marginalized-related diminished returns (MDRs) theory suggests that educational attainment shows a weaker protective effect for health and behavioral outcomes for Black individuals compared to White individuals. Previous studies conducted before the COVID-19 pandemic demonstrated diminished returns of educational attainment for Black individuals compared to White individuals.

OBJECTIVES

The study has three objectives: First, to test the association between educational attainment and cigarette smoking, e-cigarette vaping, presence of chronic medical conditions (CMC), self-rated health (SRH), depressive symptoms, and obesity; second, to explore racial differences in these associations in the USA during the COVID-19 pandemic; and third, to compare the interaction of race and return of educational attainment pre- and post-COVID-19 pandemic.

METHODS

This study utilized data from the Health Information National Trends Survey (HINTS) 2020. Total sample included 1313 adult American; among them, 77.4% (n = 1017) were non-Hispanic White, and 22.6% (n = 296) were non-Hispanic Black. Educational attainment was the independent variable operationalized as years of education. The main outcomes were cigarette smoking, e-cigarette vaping, CMC, SRH, depressive symptoms, and obesity. Age, gender, and baseline physical health were covariates. Race/ethnicity was an effect modifier.

RESULTS

Educational attainment was significantly associated with lower CMC, SRH, depressive symptoms, obesity, cigarette smoking, and e-cigarette vaping. Educational attainment did not show a significant interaction with race on any of our outcomes, suggesting that the health returns of education is similar between non-Hispanic White and non-Hispanic Black individuals.

CONCLUSION

COVID-19 may have operated as an equalizer of the returns of educational attainment. This observation may be because White may have more to lose; Black communities may be more resilient or have economic and social policies that buffered unemployment and poverty regardless of historical anti-Black oppression.

Education level as a predictor of the onset of health problems among China's middle-aged population: Cox regression analysis

Background

Despite the importance of midlife with reference to one's health, educational inequalities in midlife health have attracted little attention in China. Using Cox proportional hazards regression analysis, this study examined the association between educational attainment and the onset of midlife health problems and investigated the potential mediating effects of socioeconomic position (SEP) other than educational attainment, depression, and health behavior.

Methods

Data were extracted from the China Health and Retirement Longitudinal Survey (CHALRS) from 2011 (baseline) to 2018 (latest data). Participants aged 45-59 years at baseline were studied (N = 8,050). Health outcomes included the onset of poor self-rated health (SRH), limitation in activities of daily living (ADL) and instrumental ADL (IADL), multimorbidity, hypertension, dyslipidemia, heart diseases, and stroke over the 7-year follow-up period. Cox proportional hazard models were used to examine the associations of the outcomes with educational attainment, while controlling for potential mediators (other SEP, depression, and health behaviors).

Results

Lower educational level was associated with increased incidences of poor SRH and ADL/IADL limitations, but with decreased incidences of dyslipidemia and heart disease. After adjusting for baseline covariates, the RII was 2.17 (95% confidence interval [CI]: 1.74, 2.70) for poor SRH, 2.15 (95% CI: 1.42, 3.26) for ADL limitation, 3.84 (95% CI: 2.98, 4.94) for IADL limitation, 0.52 (95% CI: 0.40, 0.68) for dyslipidemia, and 0.55 (95% CI: 0.40, 0.74) for heart disease. Significant proportions (2.1 to 27.0%) of the RII were explained by the mediators. No sex or urban-rural differences were found in this study.

Conclusion

Our findings suggest that educational attainment is an important predictor of the incidences of key midlife health problems, with significant mediating effects exerted by other indicators of SEP, depression, and health behavior.

The role of physical and cognitive/emotional functioning in the associations between common health conditions and working

The degree to which functional abilities explain the negative associations between chronic disease and employment is not well understood. If functional limitations play an important role, then increasing access to accommodations and rehabilitation could facilitate employment among people with chronic illness. If not, other barriers related to living with chronic illness may be at play, calling for other interventions. The goal of this study was to 1) assess how health conditions were associated with employment for adults ages 30-69, and 2) test how much of these illness-employment associations was explained by physical and cognitive/emotional functioning. We fielded the state-of-the-art Work Disability Functional Assessment Battery (WD-FAB) in the nationally-representative RAND American Life Panel (N = 1774) in 2020, stratifying the sample by age and educational attainment. We found that mental health conditions, nervous system/sensory conditions, and cardiovascular conditions were significantly associated with large reductions in the probability of working, at -8, -10, and -19 percentage points (pp) respectively, while there were no significant associations for other conditions. Functional abilities were positively associated with employment to different degrees depending on education. Among those without college degrees, physical functioning (+16 pp) but not cognitive/emotional functioning was significantly associated with working. Among those with college degrees, both physical (+6 pp) and cognitive/emotional (+4 pp) functioning were associated with working. Older workers (ages 51-69) showed a larger association between physical functioning and work with no association between cognitive/emotional functioning and work. Importantly, accounting for functioning reduced the negative associations with employment for mental health and nervous system/sensory conditions but not for cardiovascular conditions. This implies that, for the former conditions, accommodating functional limitations could promote greater employment. However, broader accommodations, such as paid sick leave, increased control over work schedules, and other improvements to working conditions may be necessary to reduce work exits due to cardiovascular conditions.

Knowledge of the abortion law and key legal issues of sexual and reproductive health and rights among recently arrived migrants in Sweden: a cross-sectional survey

Background

Sexual and reproductive health and rights (SRHR), including access and information on the laws and policies related to abortion, varies considerably between countries. Migrants may have limited knowledge of SRHR and related resources in their new country. This study investigates migrants’ knowledge of the right to safe and legal abortion and other associated factors including the recent law on sexual consent, the legal age for sexual consent and age to marry in Sweden.

Methods

We conducted a cross-sectional study from 2018 to 2019 among recent migrants attending high schools or Swedish language schools. Descriptive statistics were computed on the knowledge of the Swedish abortion law and other legal aspects. Univariable and multivariable logistic regression analyses were conducted to assess if migrants’ socio-demographic characteristics were associated with knowledge (i.e. correct/incorrect) of the Swedish abortion law and other key SRHR-related legal issues.

Results

Of the total 6,263 participants, 3,557 (57%) responded about whether it is legal to have an induced abortion in Sweden, and of these, 2,632 (74%) answered incorrectly. While more than half (61%) of the respondents knew the sexual consent law, nearly half (48%) did not know that sexual consent is also required for married couples. About 90% correctly responded that it is illegal to have sex with a minor (under the age of 15) and were aware of the legal age (18 years) to marry in Sweden. Incorrect knowledge of the Swedish abortion law was associated with being religious (adjusted odds ratio (AOR), 2.12; 95% confidence interval (CI), 1.42–3.15), not having previous sexual health education (AOR, 1.68; 95% CI, 1.38–2.05), coming from a country with predominantly restrictive abortion laws (AOR, 1.46; 95% CI, 1.16–1.84), low level of education (AOR, 1.29; 95% CI, 1.04–1.61) and having a temporary residence permit (AOR, 1.27; 95% CI, 1.02–1.57).

Conclusion

We found a substantial lack of knowledge among migrants of reproductive age in Sweden regarding important laws and policies of SRHR, particularly the right to abortion. SRHR-related programmes and comprehensive sexual health education for recently arrived migrants could include components to increase knowledge of legal and safe abortions and other laws concerning SRHR.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-023-15399-z.

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.

Frailty trajectories and associated factors in the years prior to death: evidence from 14 countries in the Survey of Health, Aging and Retirement in Europe

BACKGROUND

Age-related changes in frailty have been documented in the literature. However, the evidence regarding changes in frailty prior to death is scarce. Understanding patterns of frailty progression as individuals approach death could inform care and potentially lead to interventions to improve individual's well-being at the end of life. In this paper, we estimate the progression of frailty in the years prior to death.

METHODS

Using data from 8,317 deceased participants of the Survey of Health, Ageing, and Retirement in Europe, we derived a 56-item Frailty Index. In a coordinated analysis of repeated measures of the frailty index in 14 countries, we fitted growth curve models to estimate trajectories of frailty as a function of distance to death controlling both the level and rate of frailty progression for age, sex, years to death and dementia diagnosis.

RESULTS

Across all countries, frailty before death progressed linearly. In 12 of the 14 countries included in our analyses, women had higher levels of frailty close to the time of death, although they progressed at a slower rate than men (e.g. Switzerland (-0.008, SE = 0.003) and Spain (-0.004, SE = 0.002)). Older age at the time of death and incident dementia were associated with higher levels and increased rate of change in frailty, whilst higher education was associated with lower levels of frailty in the year preceding death (e.g. Denmark (0.000, SE = 0.001)).

CONCLUSION

The progression of frailty before death was linear. Our results suggest that interventions aimed at slowing frailty progression may need to be different for men and women. Further longitudinal research on individual patterns and changes of frailty is warranted to support the development of personalized care pathways at the end of life.

High rates of impaired quality of life and social and economic problems at 6 months after COVID-19-related ARDS

Purpose

Assess long-term quality of life (HR-QoL) and socio-economic impact in COVID-19-related ARDS (C-ARDS) survivors.

Methods

C-ARDS survivors were followed up at 6 months in this prospective, cohort study. HR-QoL was assessed using SF-36 and EQ-5D-5L, and the socio-economic burden of COVID-19 was evaluated with a dedicated questionnaire. Clinical data were prospectively recorded.

Results

Seventy-nine survivors, age 63 [57-71], 84% male, were enrolled. The frequency of EQ-5D-5L reported problems was significantly higher among survivors compared to normal, in mobility, usual activities, and self-care; anxiety and depression and pain were not different. SF-36 scores were lower than the reference population, and physical and mental summary scores were below normal in 52% and 33% of the subjects, respectively. In the multivariable analysis, prolonged hospital length of stay (OR 1.45; p 0.02) and two or more comorbidities on admission (OR 7.42; p 0.002) were significant predictors of impaired “physical” and “mental” HR-QoL, respectively. A total of 38% subjects worsened social relations, 42% changed their employment status, and 23% required personal care support.

Conclusions

C-ARDS survivors have long-term impairment in HR-QoL and socio-economic problems. Prolonged hospital stay and previous comorbidities are risk factors for developing health-related issues.

Supplementary Information

The online version contains supplementary material available at. 10.1186/s44158-022-00048-5

The Long Arm of Prospective Childhood Income for Mature Adult Health in the United States

Pioneering scholarship links retrospective childhood conditions to mature adult health. We distinctively provide critical evidence with prospective state-of-the-art measures of parent income observed multiple times during childhood in the 1970s to 1990s. Using the Panel Study of Income Dynamics, we analyze six health outcomes (self-rated health, heart attack, stroke, life-threatening chronic conditions, non-life-threatening chronic conditions, and psychological distress) among 40- to 65-year-olds. Parent relative income rank has statistically and substantively significant relationships with five of six outcomes. The relationships with heart attack, stroke, and life-threatening chronic conditions are particularly strong. Parent income rank performs slightly better than alternative prospective and retrospective measures. At the same time, we provide novel validation on which retrospective measures (i.e., father's education) perform almost as well as prospective measures. Furthermore, we inform several perennial debates about how relative versus absolute income and other measures of socioeconomic status and social class influence health.

Using non-parametric Bayes shrinkage to assess relationships between multiple environmental and social stressors and neonatal size and body composition in the Healthy Start cohort

BACKGROUND

Both environmental and social factors have been linked to birth weight and adiposity at birth, but few studies consider the effects of exposure mixtures. Our objective was to identify which components of a mixture of neighborhood-level environmental and social exposures were driving associations with birth weight and adiposity at birth in the Healthy Start cohort.

METHODS

Exposures were assessed at the census tract level and included air pollution, built environment characteristics, and socioeconomic status. Prenatal exposures were assigned based on address at enrollment. Birth weight was measured at delivery and adiposity was measured using air displacement plethysmography within three days. We used non-parametric Bayes shrinkage (NPB) to identify exposures that were associated with our outcomes of interest. NPB models were compared to single-predictor linear regression. We also included generalized additive models (GAM) to assess nonlinear relationships. All regression models were adjusted for individual-level covariates, including maternal age, pre-pregnancy BMI, and smoking.

RESULTS

Results from NPB models showed most exposures were negatively associated with birth weight, though credible intervals were wide and generally contained zero. However, the NPB model identified an interaction between ozone and temperature on birth weight, and the GAM suggested potential non-linear relationships. For associations between ozone or temperature with birth weight, we observed effect modification by maternal race/ethnicity, where effects were stronger for mothers who identified as a race or ethnicity other than non-Hispanic White. No associations with adiposity at birth were observed.

CONCLUSIONS

NPB identified prenatal exposures to ozone and temperature as predictors of birth weight, and mothers who identify as a race or ethnicity other than non-Hispanic White might be disproportionately impacted. However, NPB models may have limited applicability when non-linear effects are present. Future work should consider a two-stage approach where NPB is used to reduce dimensionality and alternative approaches examine non-linear effects.

Effects of Education and Income on Incident Type 2 Diabetes and Cardiovascular Diseases: a Dutch Prospective Study

BACKGROUND

Education and income, as two primary socioeconomic indicators, are often used interchangeably in health research. However, there is a lack of clear distinction between these two indicators concerning their associations with health.

OBJECTIVE

This study aimed to investigate the separate and combined effects of education and income in relation to incident type 2 diabetes and cardiovascular diseases in the general population.

DESIGN AND PARTICIPANTS

Participants aged between 30 and 65 years from the prospective Dutch Lifelines cohort study were included. Two sub-cohorts were subsequently created, including 83,759 and 91,083 participants for a type 2 diabetes cohort and a cardiovascular diseases cohort, respectively.

MAIN MEASURES

Education and income level were assessed by self-report questionnaires. The outcomes were incident type 2 diabetes and cardiovascular diseases (defined as the earliest non-fatal cardiovascular event).

KEY RESULTS

A total of 1228 new cases of type 2 diabetes (incidence 1.5%) and 3286 (incidence 3.6%) new cases of cardiovascular diseases were identified, after a median follow-up of 43 and 44 months, respectively. Low education and low income (<1000 euro/month) were both positively associated with a higher risk of incident type 2 diabetes (OR 1.24 [95%CI 1.04-1.48] and OR 1.71 [95%CI 1.30-2.26], respectively); and with a higher risk of incident cardiovascular diseases (OR 1.15 [95%CI 1.04-1.28] and OR 1.24 [95%CI 1.02-1.52], respectively); independent of age, sex, lifestyle factors, BMI, clinical biomarkers, comorbid conditions at baseline, and each other. Results from the combined associations of education and income showed that within each education group, a higher income was associated with better health; and similarly, a higher education was associated with better health within each income group, except for the low-income group.

CONCLUSIONS

Education and income were both independently associated with incident type 2 diabetes and cardiovascular diseases. The combined associations of these two socioeconomic indicators revealed that within each education or income level, substantial health disparities existed across strata of the other socioeconomic indicator. Education and income are two equally important socioeconomic indicators in health, and should be considered simultaneously in health research and policymaking.

Disrupting Monolithic Thinking about Black Women and Their Mental Health: Does Stress Exposure Explain Intersectional Ethnic, Nativity, and Socioeconomic Differences?

Guided by the intersectionality framework and social stress theory, this study provides a sociological analysis of Black women's psychological health. Using data from the National Survey of American Life (N=2972), we first examine U.S. Black women's psychological health through the intersections of their ethnicity, nativity, and socioeconomic status. Next, we assess the extent to which stress exposure (e.g., discrimination, financial strain, and negative interactions with family members) explains any discovered status differences in psychological health among Black women. Results reveal that foreign-born Afro-Caribbean women living in the United States experience a mental health advantage vis-á-vis their U.S.-born African American female counterparts. In addition, college-educated African American women experience fewer depressive symptoms but similar rates of lifetime PTSD relative to African American women without a college education. Last, though stress exposure was associated with poor mental health, it did not explain status differences in mental health. Overall, this study reveals that Black women, despite shared gendered and racialized oppression, are not a monolithic group, varying along other dimensions of stratification. The results suggest that other stress exposures and psychological resources should be explored in future work examining status differences in mental health among Black women.

Social isolation and health among family caregivers of older adults: Less community participation may indicate poor self-reported health

Social isolation is associated with adverse health outcomes in the general older adult population, but little is known about indicators of social isolation in family caregiver populations. This cross-sectional study examined the prevalence of social isolation in the 2015 National Survey of Caregiving. Using the Convoy Model of social relations, a life-course social support framework, we also examined associations between social isolation and caregiver self-reported health. Using multiple ordinal logistic regression models, we examined social isolation - operationalised with a five-item summative measure and, alternatively, with each social isolation item - as a predictor of self-reported general health status. On the dichotomised summative measure, 24.74% (n = 2,175) were more isolated. Younger caregivers were more isolated (M = 56.77 years, SE = 0.76) compared with those who were not (M = 60.86 years, SE = 0.41). Self-reported general health was as follows: 4.93% poor; 15.67% fair; 25.62% good; 34.81% very good and 18.97% excellent. Less social isolation was associated with higher odds of better self-reported health (Adjusted odds ratio [AOR] = 1.19; CI = 1.05-1.35). Of the individual social isolation indicators, only a lack of community participation was associated with higher odds of worse self-reported health (AOR = 1.57; CI = 1.25-1.97). Social isolation and particularly community participation were associated with caregiver health status. It may be necessary for healthcare providers to consider these factors in caregiver health assessments. Future research is recommended to understand the consequences of various social isolation indicators in diverse samples including younger caregivers.

The Moderating Role of Maternal Education and Employment on Child Health in Pakistan

BACKGROUND

Pakistan has challenges in fulfilling its universal responsibilities of providing better health facilities to everyone. The Sustainable Development Goals (SDGs) aim to reduce maternal and infant mortality rates. Despite declines in mother and child death, the total mortality ratio has marginally increased. However, neonatal death has not decreased significantly. Family planning is important for controlling population growth and improving child as well as maternal health. Pakistan's government has unceasingly tried to enhance the provision of contraceptive facilities, but still, an unmet need for family planning (UMNFP) exists in our country. Women are said to have UMNFP if they want to limit or space childbearing, but they are not using contraception methods for any reason. The study aimed to explore the effect of the UMNFP and to investigate the moderating role of a mother's education and employment status on a child's health.

METHODS

We analyzed the data of 2,244 women in this study. To investigate the study objectives, we utilized the secondary dataset of the Pakistan Demographic and Health Survey (PDHS) 2017-18 (publicly available on the website of the National Institute of Population Studies) and applied binary logistic regression using SPSS 24.

RESULTS

Results suggest a positive effect of a woman's age (25 to 39 years), maternal education (higher), father's education (higher), family's wealth status (richest), mass media exposure, and adequate birth spacing (at least for 33 months) on a child's health. On the other hand, there is an indirect association between maternal employment, unmet need for family planning, and a child's health. The moderating role of maternal education and employment on the relationship between household wealth status and a child's health is positive.

CONCLUSIONS

We conclude that the strong predictors of child health are UMNFP, maternal education, and employment. The link between the met need for family planning and the child's health is positive. The moderating effect of maternal education and household wealth status on a child's health is progressive. Similarly, the interaction effect of a mother's employment and household wealth status on a child's health is positive. Finally, we concluded that the link between the health of the child and household wealth status is much more diverse and positive when the mother is highly educated and currently employed.

Sick of social status: A Bourdieusian perspective on morbidity and health inequalities

Self-reported health (SRH) is one of the most frequently used measures for examining socioeconomic inequalities in health. Studies find that when faced with 'identical objective health', individuals in lower socioeconomic groups consistently report worse SRH than those in higher socioeconomic groups. Such findings are often dismissed as being the result of reporting bias, and existing literature dominated by the biomedical conception of SRH has not investigated the underlying social mechanisms at work. To address this limitation, drawing on the work of Bourdieu we employ a relational thinking between health and social position. By way of multiple correspondence analysis, we construct social space of health determinants for three European countries from different welfare states and map the trajectories of educational groups experiencing similar levels of morbidity and their relation to SRH. Differences in SRH observed among social groups for the same level of morbidity are understood in relation to the position and the relative power of individuals in different educational groups to maintain or improve their social conditions, especially with increasing levels of health loss. Our analysis indicates that reporting differences in SRH among educational groups emerges from objectively healthy individuals and follows differences in accumulation of social advantages and disadvantages.

Student Debt and Cardiovascular Disease Risk Among U.S. Adults in Early Mid-Life

INTRODUCTION

Student loan debt has become common for young adults in the U.S. and is correlated with poor physical and mental health. It is unclear how the accumulation or repayment of student debt is associated with longer-term cardiovascular risks and chronic inflammation.

METHODS

Nationally representative data collected between 1994 and 2018 from >4,000 participants of a U.S. cohort study were analyzed in 2021 to assess the associations among change in student debt between young adulthood and early mid-life, 30-year Framingham cardiovascular disease risk scores, and C-reactive protein levels.

RESULTS

Ordinary least squares regression revealed higher cardiovascular disease and C-reactive protein risks among those in households who became indebted or were consistently in debt between young adulthood and early mid-life than among those in households who were either never in debt or repaid their loans. This pattern persisted after adjustments for degree completion, socioeconomic measures, and other sources of debt.

CONCLUSIONS

These findings provide a benchmark for widening health inequalities among a cohort bearing more student debt than any other in U.S.

HISTORY

As student debt accumulates, within-cohort disparities in cardiovascular disease and related morbidities may undermine the health benefits of postsecondary education.

Is altering the availability of healthier vs. less-healthy options effective across socioeconomic groups? A mega-analysis

Background

Availability interventions have been hypothesised to make limited demands on conscious processes and, as a result, to be less likely to generate health inequalities than cognitively-oriented interventions. Here we synthesise existing evidence to examine whether the impact of altering the availability of healthier vs. less-healthy options differs by socioeconomic position.

Methods

Individual-level data (21,360 observations from 7,375 participants) from six studies (conducted online (n = 4) and in laboratories (n = 2)) were pooled for mega-analysis. Multilevel logistic regressions analysed the impact of altering the availability of healthier options on selection of a healthier (rather than a less-healthy) option by socioeconomic position, assessed by (a) education and (b) income.

Results

Participants had over threefold higher odds of selecting a healthier option when the available range was predominantly healthier compared to selections when the range offered was predominantly less-healthy (odds ratio (OR): 3.8; 95%CIs: 3.5, 4.1). Less educated participants were less likely to select healthier options in each availability condition (ORs: 0.75–0.85; all p < 0.005), but there was no evidence of differences in healthier option selection by income. Compared to selections when the range offered was predominantly less-healthy, when predominantly healthier options were available there was a 31% increase in selecting healthier options for the most educated group vs 27% for the least educated. This modest degree of increased responsiveness in the most educated group appeared only to occur when healthier options were predominant. There was no evidence of any differential response to the intervention by income.

Conclusion

Increasing the proportion of healthier options available increases the selection of healthier options across socioeconomic positions. Availability interventions may have a slightly larger beneficial effect on those with the highest levels of education in settings when healthier options predominate.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12966-022-01315-y.

Association of subjective social status with epigenetic aging among Black and White women

OBJECTIVE

Subjective social status (SSS), an individual's assessment of their own social status in relation to others, is associated with health and mortality independently of objective SES; however, no studies have tested whether SSS influences epigenetic aging. The current study examines if SSS is associated with epigenetic age acceleration in both Black and White women, independently of objective SES measured during both childhood and adulthood.

METHOD

For 9- and 10-year-old Black and White girls, parental education and annual household income was obtained. At ages 39-42, 361 participants (175 Black, 186 White) reported their current education, household income, and SSS, and provided saliva to assess age acceleration using the GrimAge epigenetic clock. Linear regression estimated the association of SSS with epigenetic age acceleration, controlling for objective SES (current education, current income, parents' education, income during childhood), smoking, and counts of cell types.

RESULTS

When all objective SES variables were included in the model, SSS remained significantly associated with epigenetic age acceleration, b = - 0.31, p = .003, ß = - 0.15. Black women had significantly greater age acceleration than White women, (t(359) = 5.20, p > .001, d = 0.55) but race did not moderate the association between SSS and epigenetic age acceleration.

CONCLUSIONS

Women who rated themselves lower in SSS had greater epigenetic age acceleration, regardless of income and education. There was no difference by race for this association.

Educational attainment in young adulthood and self-rated health in midlife - Does allostatic load mediate the association?

This study aimed to examine the extent to which allostatic load (AL), measured in midlife, mediates the association between educational attainment in young adulthood and self-rated health (SRH) in midlife among women and men. The study used data from the Copenhagen Aging and Midlife Biobank (CAMB; n = 5467 participants, aged 48-62 years, 31.5% women). Educational attainment was assessed as years of education. SRH was assessed with one item: 'In general, how would you say your health is?' with response options from "excellent" to "poor". AL mediated 31.7% and 19.7% of the association between educational attainment and SRH in women and men, respectively. We observed that higher educational attainment was associated with better SRH and lower AL in both women and men. Our study showed that AL partly mediates the association between educational attainment in young adulthood and SRH in adulthood among both men and women. This study indicates that educational attainment in young adulthood affects health throughout life. Such knowledge of a potential mediator may be important in breaking the social heritage.

A call for a new perspective in social work and health care: the developmental-clinical social work perspective. COVID-19 pandemic through the human rights perspective

Human rights are essential in shaping the pandemic response both for the public health emergency and the broader impact on people's well-being. Utilizing the human rights lenses, this article expatiates on a developmental-clinical social work approach to the COVID-19 pandemic response. The disquisition explores human rights to health, education, adequate food and nutrition, water and sanitation, and development. It conducts projections and a cost-benefit analysis of remedial and developmental focus on health. The paper emphasizes that it is criminal to deprive human beings of their entitlements. The paper argues that socio-economic inequalities deprive people of their human rights. To this end, it calls for the equal distribution of wealth to end poverty and ultimately address human rights concerns. It advances for the integration of health in all policies. The article calls for the social work profession and other helping professions to rethink of their priorities in the enhancement of people's welfare: either to be an agent of social control or an agent of social change. Social work should face the socio-economic inequalities head-on if it is to truly reflect its professional philosophy of social justice.

Using sibling models to unpack the relationship between education and cognitive functioning in later life

As the population ages and the prevalence of dementia increases, unpacking robust and persistent associations between educational attainment and later life cognitive functioning is increasingly important. We do know, from studies with robust causal designs, that policies that increase years of schooling improve later life cognitive functioning. Yet these studies don't illuminate why older adults with greater educational attainment have relatively preserved cognitive functioning. Studies focused on why, however, have been hampered by methodological limitations and inattention to some key explanations for this relationship. Consequently, we test explanations encompassing antecedent factors, specifically family environments, adolescent IQ, and genetic factors, as well as adult mediating mechanisms, specifically health behaviors and health. We employ the Wisconsin Longitudinal Study, which includes 80 years of prospectively collected data on a sample of 1 in every 3 high school graduates, and a selected sibling, from the class of 1957. Sibling models, and the inclusion of prospectively collected early and midlife covariates, allows us to address the explanatory and methodological limitations of the prior literature to better unpack the relationship between education and later life cognitive functioning. We find little evidence that early life genetic endowments and environments, or midlife health and health behaviors, explain the relationship. Adolescent cognition, however, does matter; higher educational attainment, linked to antecedent adolescent cognitive functioning, helps protect against lower levels of cognitive functioning in later life. Both adolescent cognition and education, however, independently associate with later life cognitive functioning at relatively similar magnitudes. Educational attainment's relationship to later life cognitive functioning is not simply a function of adolescent cognitive functioning.

Differences in awareness of positive and negative age-related changes accounting for variability in health outcomes

Higher awareness of positive age-related changes (AARC gains) is related to better mental health, whereas higher awareness of negative age-related changes (AARC losses) is related to poorer mental and physical health. So far perceived gains and losses have been explored separately, but people report gains and losses concurrently in varying degrees, and different profiles of gains and losses may be differentially associated with health. We identified profiles of gains and losses and explored whether different profiles differed in physical, mental, and cognitive health. We used cross-sectional data from the PROTECT study (N = 6192; mean (SD) age = 66.1 (7.0)). Using latent profile analysis, a four-class solution showed the best model fit. We found that 45% of people perceived many gains and few losses (Class 1); 24% perceived moderate gains and few losses (Class 2); 24% perceived many gains and moderate losses (Class 3); 7% perceived many gains and many losses (Class 4). Analysis of variance and Chi-squared tests showed that Class 1 had relatively better physical, mental, and cognitive health, followed by Classes 2, 3, and 4. Experiencing one's ageing to a high degree as gain may be related to better health only when individuals interpret ageing as involving low levels of loss across several life domains. Risk in terms of poorer health emerged in those who perceived high losses. Considering gains and losses in parallel, rather than separately, may lead to a more fine-tuned understanding of relations with health.

Predictors of Child's Health in Pakistan and the Moderating Role of Birth Spacing

There is a consensus that better health should be viewed both as a means and an end to achieve development. The level of development should be judged by the health status of the population and the fair distribution of health services across the people. Many determinants affect a child’s health. This study aimed to explore a child’s health predictors and the moderating role of birth spacing on the association between mother’s health care services utilization (MHCSU) and a child’s health. In this study, we used the dataset of Pakistan Demographic and Health Survey 2017-18 to explore the predictors of child health and the moderating role of birth spacing through binary logistic regression, using SPSS version 20. The results showed an association of mother’s age (35 to 49 years), her education (at least secondary), health care services (more accessible), father’s education (at least secondary), their wealth status (high), and exposure to mass media to improved child health. However, the effect of a mother’s employment status (employed) on her child’s health is significant and negative. The coefficient of moderation term indicated that the moderating role of birth spacing on the association between MHCSU and a child’s health is positive. We conclude that birth spacing is a strong predictor for improving a child’s health. The association between MHCSU and child’s health is more distinct and positive when the birth spacing is at least 33 months.

Awareness of age-related changes in Norwegian individuals 50+. Short form questionnaire validation

BACKGROUND

A questionnaire assessing awareness of positive and negative age-related changes (AARC gains and losses) was developed in the US and Germany, and validated for the UK and Brazilian populations. In this study, we validated the short-form measure (AARC-10 SF) in the Norwegian population aged 50 and over. In addition, the relationship between cognitive variables and AARC was examined.

METHODS

Cross-sectional analyses of data from 1,510 participants in the ongoing online PROTECT Norge study were used to explore and confirm the two-factor structure of AARC gains and AARC losses; reliability; measurement invariance across different population groups defined by sex, education level, employment, and in middle age, early old age, and advanced old age. We explored the relationship between AARC and demographic variables (defined in the same way as the population groups).

RESULTS

We confirmed the two-factor structure (gains and losses) of the Norwegian translation of the AARC-10 SF. We did not find mutual correlations between related items in gains and losses, except for the physical health item from the gains dimension, which was positively correlated with all items of the losses dimension. Age, sex, marital status, employment, and university education predicted AARC gains and losses.

CONCLUSION

The Norwegian translation of the AARC-10 SF captures individuals' positive and negative self-perceptions of age-related changes in their mental, physical, and cognitive health.

Effect of education and multimorbidity on mortality among older adults: findings from the health, well-being and ageing cohort study (SABE)

OBJECTIVES

This study assessed the moderating role of education on the relationship between multimorbidity and mortality among older adults in Brazil.

STUDY DESIGN

This was a cohort study.

METHODS

This study used data from 1768 participants of the Health, Well-Being and Ageing Cohort Study (SABE) who were assessed between 2006 and 2015. The Cox Proportional Risks Model was used to evaluate the association between multimorbidity (two or more chronic diseases) and mortality. An interaction term between education and multimorbidity was included to test the moderating role of education in this association.

RESULTS

The average follow-up time was 4.5 years, with a total of 589 deaths in the period. Multimorbidity increased the risk of mortality (hazard ratio [HR] 1.55, 95% confidence interval [CI] 1.27-1.91), and this association was not moderated by education (HR 1.06, 95% CI 1.00-1.13; P value = 0.07).

CONCLUSIONS

The impact of education and multimorbidity on mortality emphasises the need for an integrated approach directed towards the social determinants of health to prevent multimorbidity and its burden among older adults.

Education, household income, and depressive symptoms in middle-aged and older Japanese adults

Background

Income inequality has dramatically increased worldwide, and there is a need to re-evaluate the association between socio-economic status (SES) and depression. Relative contributions of household income and education to depression, as well as their interactions, have not been fully evaluated. This study aimed to examine the association between SES and depressive symptoms in Japanese adults, focusing on interactions between education and household income levels.

Methods

This cross-sectional study used data from baseline surveys of two cohort studies. Participants were 38,499 community-dwelling people aged 40–74 years who participated in baseline surveys of the Murakami cohort study (2011–2012) and Uonuma cohort study (2012–2015) conducted in Niigata Prefecture, Japan. Information regarding marital status, education level, household income, occupation, activities of daily living (ADL), and history of cancer, myocardial infarction, stroke, and diabetes was obtained using a self-administered questionnaire. Depressive symptoms were examined using the Center for Epidemiologic Studies Depression Scale (CES-D). Logistic regression analysis was used to obtain odds ratios (ORs). Covariates included age, sex, marital status, education, household income, occupation, ADL, and disease history.

Results

Individuals with higher education levels had lower ORs (adjusted P for trend = 0.0007) for depressive symptoms, independently of household income level. The OR of the university-or-higher group was significantly lower than that of the junior high school group (adjusted OR = 0.79). Individuals with lower household income levels had higher ORs (adjusted P for trend< 0.0001) for depressive symptoms, independently of education level. The type of occupation was not associated with depressive symptoms. In subgroup analyses according to household income level, individuals with higher education levels had significantly lower ORs in the lowest- and lower-income groups (adjusted P for trend = 0.0275 and 0.0123, respectively), but not in higher- and highest-income groups (0.5214 and 0.0915, respectively).

Conclusions

Both education and household income levels are independently associated with the prevalence of depressive symptoms, with household income levels showing a more robust association with depressive symptoms than education levels. This suggests that a high household income level may offset the risk of depressive symptoms from having a low education level.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-021-12168-8.

Longitudinal Trajectories and Factors Associated With US County-Level Cardiovascular Mortality, 1980 to 2014

IMPORTANCE

Cardiovascular (CV) mortality has declined for more than 3 decades in the US. However, differences in declines among residents at a US county level are not well characterized.

OBJECTIVE

To identify unique county-level trajectories of CV mortality in the US during a 35-year study period and explore county-level factors that are associated with CV mortality trajectories.

DESIGN, SETTING, AND PARTICIPANTS

This longitudinal cross-sectional analysis of CV mortality trends used data from 3133 US counties from 1980 to 2014. County-level demographic, socioeconomic, environmental, and health-related risk factors were compiled. Data were analyzed from December 2019 to September 2021.

EXPOSURES

County-level characteristics, collected from 5 county-level data sets.

MAIN OUTCOMES AND MEASURES

Cardiovascular mortality data were obtained for 3133 US counties from 1980 to 2014 using age-standardized county-level mortality rates from the Global Burden of Disease study. The longitudinal K-means approach was used to identify 3 distinct clusters based on underlying mortality trajectory. Multinomial logistic regression models were constructed to evaluate associations between county characteristics and cluster membership.

RESULTS

Among 3133 US counties (median, 49.5% [IQR, 48.9%-50.5%] men; 30.7% [IQR, 27.1%-34.4%] older than 55 years; 9.9% [IQR, 4.5%-22.7%] racial minority group [individuals self-identifying as Black or African American, American Indian or Alaska Native, Asian, Native Hawaiian, Pacific Islander, other, or multiple races/ethnicities]), CV mortality declined by 45.5% overall and by 38.4% in high-mortality strata (694 counties), by 45.0% in intermediate-mortality strata (1382 counties), and by 48.3% in low-mortality strata (1057 counties). Counties with the highest mortality in 1980 continued to demonstrate the highest mortality in 2014. Trajectory groups were regionally distributed, with high-mortality trajectory counties focused in the South and in portions of Appalachia. Low- vs high-mortality groups varied significantly in demographic (racial minority group proportion, 7.6% [IQR, 4.1%-14.5%]) vs 23.9% [IQR, 6.5%-40.8%]) and socioeconomic characteristics such as high-school education (9.4% [IQR, 7.3%-12.6%] vs 20.1% [IQR, 16.1%-23.2%]), poverty rates (11.4% [IQR, 8.8%-14.6%] vs 20.6% [IQR, 17.1%-24.4%]), and violent crime rates (161.5 [IQR, 89.0-262.4] vs 272.8 [IQR, 155.3-431.3] per 100 000 population). In multinomial logistic regression, a model incorporating demographic, socioeconomic, environmental, and health characteristics accounted for 60% of the variance in the CV mortality trajectory (R2 = 0.60). Sociodemographic factors such as racial minority group proportion (odds ratio [OR], 1.70 [95% CI, 1.35-2.14]) and educational attainment (OR, 6.17 [95% CI, 4.55-8.36]) and health behaviors such as smoking (OR for high vs low, 2.04 [95% CI, 1.58-2.64]) and physical inactivity (OR, 3.74 [95% CI, 2.83-4.93]) were associated with the high-mortality trajectory.

CONCLUSIONS AND RELEVANCE

Cardiovascular mortality declined in all subgroups during the 35-year study period; however, disparities remained unchanged during that time. Disparate trajectories were associated with social and behavioral risks. Health policy efforts across multiple domains, including structural and public health targets, may be needed to reduce existing county-level cardiovascular mortality disparities.

Education, wealth, and duration of life expected in various degrees of frailty

Multistate life tables are used to estimate life expected in three frailty states: frailty free, mild/moderate frailty, severe frailty. Estimates are provided for the combination of education and wealth by age, stratified by sex. Data consider 17,115 cases from the Health and Retirement Study, 2000-2014. Frailty is measured using a 59 item frailty index based on deficit accumulation. Estimates are derived using stochastic population analysis for complex events. Population-based and status-based results are reported. Findings confirm a hypothesis that the combination of higher education and wealth results in longer lives in more favorable degrees of frailty. Also, as hypothesized, wealth generally affords a greater advantage than does education among those with severe frailty at baseline. For instance, high wealth provides a 70-year-old woman with severe frailty at baseline 0.70 more total years and 0.81 more frailty free years then her counterpart with low wealth, compared to gains of 0.39 and 0.54, respectively, for those with high education. Unexpectedly, wealth also has a greater role among those frailty free at baseline. A 70-year-old woman frailty free at baseline with high wealth lives 3.19 more net years and 4.13 more years frailty free than her counterpart with low wealth, while the same comparison for high versus low education indicates advantages of 2.00 total and 1.96 frailty free years. Relative change ratios also indicate more robust results for wealth versus education. In sum, there is evidence that inequality in duration of life in degrees of frailty is socially patterned.

Trajectories of unsecured debt and health at midlife

BACKGROUND

Unsecured debt - debt not tied to an asset - is a financial stressor that undermines health, but prior research has not investigated relationships between group-based trajectories of unsecured debt and pain and disability at midlife.

METHODS

US respondents of the National Longitudinal Study of Youth-1979 cohort reported unsecured debt and income between ages 28-40. We used these measures to identify group-based trajectories of unsecured debt and unsecured debt-to-income ratio. We then used trajectory membership to predict three pain and disability-related health outcomes at age 50, adjusting for lagged health and other covariates.

RESULTS

Group-based trajectory models divided the sample of 7850 respondents into 6 unsecured debt trajectories and 5 unsecured debt-to-income trajectories. In fully adjusted unsecured debt models, compared to people with constant low debt, those who paid down debt over time, carried constant debt, experienced debt cycling, or accumulated debt later in life were more likely to report pain interference with activities or joint pain or stiffness at age 50 (pain interference ORs ranging from 1.33 to 1.76; joint pain or stiffness ORs ranging from 1.27 to 1.45). In fully adjusted unsecured debt-to-income models, compared to those with constant low debt, those with constant high debt or accumulating debt later in life were more likely to report pain interference or joint pain or stiffness (pain interference ORs ranging from 1.30 to 1.91; joint pain or stiffness ORs ranging from 1.19 to 1.33).

CONCLUSION

The amount, timing, and duration of unsecured debt accumulation and repayment have important health implications and may exacerbate midlife health inequalities.

Adult children's education and trajectories of episodic memory among older parents in the United States of America

The purpose of this study is to assess the relationship between adult children's education and older parents’ cognitive health, and the extent to which this relationship is moderated by parents’ own socio-economic and marital statuses. Data using Waves 5 (2000) to 13 (2016) are drawn from the Health and Retirement Study (HRS), a nationally representative panel survey of individuals age 50 and above in the United States of America (USA). Older parents’ cognitive functioning is measured using episodic memory from Waves 5–13. Adult children's education is measured using years of schooling, on average, for all adult children of a respondent. Analyses based on multilevel linear growth curve modelling reveal that parents with well-educated adult children report higher memory score over time compared to their counterparts whose children are not as well-educated. We also find that the positive effect of children's education on parents’ cognitive health is moderated by parents’ own education, though not by their income, occupation or marital status. Our work contributes to the growing body of research on the ‘upward’ flow of resources model that assesses the ways in which personal and social assets of the younger generation shape the health and wellbeing of the older generation. Our findings are particularly relevant to the USA given the enduring linkage between socio-economic status and health, and the limited social and economic protection for those of lower social status.

Sociodemographic characteristics are associated with prevalence of high-risk waist circumference and high-risk waist-to-height ratio in U.S. adolescents

BACKGROUND

Adiposity status in adolescence is associated with various health outcomes in adulthood. Waist circumference [WC] and waist-to-height ratio [WHtR] are measures of abdominal obesity and have shown to be valid predictors of future chronic diseases. However, the relationship between sociodemographic characteristics and WC, as well as WHtR in U.S. adolescents remain unclear. Thus, the study aims to examine associations between sociodemographic characteristics and abdominal obesity among a nationally representative sample of U.S. adolescents.

METHODS

The sample included 4712 adolescents (12-19 years) in the 2007-2016 National Health and Nutrition Examination Survey. Associations between sociodemographic characteristics and abdominal obesity (WC and WHtR) were examined using multiple logistic regression models, adjusted for age, physical activity level, and sedentary activity.

RESULTS

Around 18% of adolescents had high-risk WC (≥90th percentile) and 34% had high-risk WHtR (≥0.5). Females had higher odds of high-risk WHtR compared to males (OR = 1.46, 95%CI = 1.23-1.72). Mexican American adolescents had higher odds of high-risk WHtR compared to non-Hispanic White (OR = 1.66, 95%CI = 1.24-2.20), non-Hispanic Black (OR = 1.73, 95%CI = 1.26-2.36), and other race/multi-racial adolescents (OR = 1.84, 95%CI = 1.21-2.80). When their parent were college graduates, adolescents had lower odds for high-risk WC compared to when the parent had some college education (OR = 0.68, 95%CI = 0.49-0.93) or a high school degree or less (OR = 0.70, 95%CI = 0.51-0.97). Similar associations were seen between parental education level and high-risk WHtR, as well as between household income and high-risk WHtR.

CONCLUSIONS

Measures of abdominal obesity should be considered to assess burden of adiposity, especially among female adolescents, adolescents from racial/ethnic minority and low socioeconomic status backgrounds. Additionally, future health interventions should consider including changes in WC and WHtR to measure the impact of these interventions.

Understanding frailty among older people living in old age homes and the community in Nepal: A cross-sectional study

Introduction

Frailty is a state of being vulnerable to adverse health outcomes such as falls, delirium, and disability in older people. Identifying frailty is important in a low-income setting to prevent it from progressing, reducing healthcare costs, increasing the chances of reversibility, and implementing effective interventions. The factors affecting frailty in older people living in old age homes could differ from those living in the community. This study was conducted to identify the factors associated with frailty in older people residing in old age homes and communities in Kathmandu Valley, Nepal.

Methods

This is a cross-sectional study conducted from April to June 2019 in three districts of Kathmandu Valley, Nepal. Data were collected from 193 older people residing in old age homes and 501 residing in communities aged 60 and above using convenience sampling. Frailty was measured using the Groningen Frailty Indicator. Data were collected via face-to-face interviews. Multiple linear regression analyses were used to examine the association between independent variables and frailty.

Results

Frailty was more prevalent among older people in old age homes (71.5%) compared to those in the community (56.3%). Older people who were satisfied with their living environment had lower frailty scores in both old age homes (β = -0.20, p<0.01) and the community (β = -0.15, p<0.001). Those who had self-rated unhealthy lifestyle had higher frailty scores in both old age homes (β = 0.45, p<0.001) and the community (β = 0.25, p<0.001). In the community, those over 80 years of age had higher frailty scores (β = 0.15, p<0.01) and those with higher education had lower scores (β = -0.13, p<0.05).

Conclusion

The living environment and lifestyle are key modifiable risk factors of frailty, both in old age homes and the community. The findings suggest a need for lifestyle modification and reforms in building standards, especially in old age homes, to promote age-friendly communities.

The association of education in a new society and social support from the education with the health of North Korean defectors: a cross-sectional study

Background

The number of North Korean defectors (NKDs) escaping to South Korea has increased. The health status of NKDs is an essential factor for a successful settlement into South Korean society. However, no studies have been conducted on the health status of NKDs in terms of education and social support. The aim of this study was to determine the associations of education and social support with the self-rated health status among NKDs.

Methods

This study utilized data gained from face-to-face interviews with 126 NKDs. A multivariable logistic regression and path analysis were performed to assess the effects of education in South Korea and social support on their self-rated health status and to explore the complex relationships between direct and indirect effects of the variables.

Results

NKDs who did not experience regular education in South Korea responded that they were in poor health compared to their counterpart (OR = 5.78). Although a direct association between education in South Korea and self-rated health was not shown, there was an indirect path from education in South Korea to self-rated health through social support.

Conclusions

Participation in regular education in South Korea is important for the health status of NKDs. Moreover, social support has an important role in the association between education and self-rated health. Social policies and NKD assistance programs should consider and reflect the combination of education and social support interventions relevant to the health status of NKDs.

Does digital technology reduce health disparity? Investigating difference of depression stemming from socioeconomic status among Chinese older adults

Background

Prior studies on health disparity have shown that socioeconomic status is critical to inequality of health outcomes such as depression. However, two questions await further investigation: whether disparity in depression correlated with socioeconomic status will become larger when depression becomes severer, and whether digital technology will reduce the disparity in depression correlated with socioeconomic status. Our study aims to answer the above two questions.

Methods

By using the dataset from China Health and Retirement Longitudinal Study 2015, we use quantile regression models to examine the association between socioeconomic status and depression across different quantiles, and test the moderating effect of digital technology.

Results

Our study obtains four key findings. First, the negative effects of socioeconomic status on depression present an increasing trend at high quantiles. Second, Internet usage exacerbates the disparity in depression associated with education level on average, but reduces this disparity associated with education level at high quantiles. Third, Internet usage reduces the disparity in depression associated with income on average and at high quantiles. Fourth, mobile phone ownership has almost no moderating effect on the relationship between socioeconomic status and depression.

Conclusions

Our findings suggest the potential use of digital technology in reducing disparity in depression correlated with socioeconomic status among middle-aged and aged individuals in developing countries.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12877-021-02175-0.

Social determinants of health and coronavirus disease 2019 in pregnancy

Background

The social and physical environments in which people live affect the emergence, prevalence, and severity of both infectious and noninfectious diseases. There are limited data on how such social determinants of health, including neighborhood socioeconomic conditions, affect the risk of severe acute respiratory syndrome coronavirus 2 infection and severity of coronavirus disease 2019 during pregnancy.

Objective

Our objective was to determine how social determinants of health are associated with severe acute respiratory syndrome coronavirus 2 infection and the severity of coronavirus disease 2019 illness in hospitalized pregnant patients in New York during the global coronavirus disease 2019 pandemic.

Study Design

This cross-sectional study evaluated all pregnant patients who delivered and had polymerase chain reaction testing for severe acute respiratory syndrome coronavirus 2 between March 15, 2020, and June 15, 2020, at 7 hospitals within Northwell Health, the largest academic health system in New York. During the study period, universal severe acute respiratory syndrome coronavirus 2 testing protocols were implemented at all sites. Polymerase chain reaction testing was performed using nasopharyngeal swabs. Patients were excluded if the following variables were not available: polymerase chain reaction results, race, ethnicity, or zone improvement plan (ZIP) code of residence. Clinical data were obtained from the enterprise electronic health record system. For each patient, ZIP code was used as a proxy for neighborhood. Socioeconomic characteristics were determined by linking to ZIP code data from the United States Census Bureau's American Community Survey and the Internal Revenue Service's Statistics of Income Division. Specific variables of interest included mean persons per household, median household income, percent unemployment, and percent with less than high school education. Medical records were manually reviewed for all subjects with positive polymerase chain reaction test results to correctly identify symptomatic patients and then classify those subjects using the National Institutes of Health severity of illness categories. Classification was based on the highest severity of illness throughout gestation and not necessarily at the time of presentation for delivery.

Results

A total of 4873 patients were included in the study. The polymerase chain reaction test positivity rate was 11% (n=544). Among this group, 359 patients (66%) were asymptomatic or presymptomatic, 115 (21%) had mild or moderate coronavirus disease 2019, and 70 (13%) had severe or critical coronavirus disease 2019. On multiple logistic regression modeling, pregnant patients who had a positive test result for severe acute respiratory syndrome coronavirus 2 were more likely to be younger or of higher parity, belong to minoritized racial and ethnic groups, have public health insurance, have limited English proficiency, and reside in low-income neighborhoods with less educational attainment. On ordinal logit regression modeling, obesity, income and education were associated with coronavirus disease 2019 severity.

Conclusion

Social and physical determinants of health play a role in determining the risk of infection. The severity of coronavirus disease 2019 illness was not associated with race or ethnicity but was associated with maternal obesity and neighborhood level characteristics such as educational attainment and household income.

Description of Variation in Age of Onset of Functional Limitations of Native Hawaiian and Pacific Islanders Compared to Other Racial and Ethnic Groups

(1) Background: The purpose of this exploratory study was to describe variation in age of onset of functional limitations of Native Hawaiian and Pacific Islanders (NHPI) compared to other racial and ethnic groups. (2) Methods: Adults age 45 years and older who responded to the Functioning and Disability module within the 2014 National Health Interview Survey (NHIS) were included (n = 628 NHPI; 7122 non-Hispanic Whites; 1418 Blacks; 470 Asians; and 1216 Hispanic adults). The NHIS Functioning and Disability module included 13 items, which we organized into three domains of functional limitations using factor analysis: Mobility, Gross Motor Skills, and Fine Motor Skills. Responses were summed within each domain. (3) Results: After adjusting for age and sex, we found that racial/ethnic minority groups, with the exception of Asians, experience more functional limitations than Whites. Results further indicate that NHPI adults experienced an earlier surge in all three domains of functional limitations compared to other racial/ethnic groups. (4) Conclusions: These findings are novel and provide additional evidence to the existence of disparities in functional health outcomes across racial/ethnic groups. Future studies are needed to develop targeted and culturally tailored interventions for those most in need.

Association of Educational Attainment With Incidence of CKD in Young Adults

Introduction

Chronic kidney disease (CKD) is greatly affected by social determinants of health. Whether low educational attainment is associated with incident CKD in young adults is unclear.

Methods

We evaluated the association of education with incident CKD in 3139 Coronary Artery Risk Development in Young Adults participants. We categorized education into low (high school and less), medium (college), and high (master’s and professional studies) groups. Incident CKD was defined as new development of estimated glomerular filtration rate (eGFR) <60 ml/min per 1.73 m² or urine albumin to creatinine ratio (ACR) ≥30 mg/g. Change in eGFR over 20 years was a secondary outcome.

Results

At baseline, mean age was 35.0 ± 3.6 years, 47% were Black, and 55% were women. Participants with lower educational attainment were less likely to have high income and health insurance and to engage in a healthy lifestyle. Over 20 years, 407 participants developed CKD (13%). Compared with individuals with low educational attainment, those with medium and high educational attainment had an unadjusted hazard ratios for CKD of 0.79 (95% confidence interval [CI] 0.65–0.97) and 0.44 (95% CI, 0.30–0.63), respectively. This association was no longer significant after adjusting for income, health insurance, lifestyle, and health status. Low educational attainment was significantly associated with a change in eGFR in crude and adjusted analyses, although the association was attenuated in the multivariable models (low: –0.83 [95% CI, –0.91 to –0.75], medium: –0.80 (95% CI, –0.95 to –0.64), and high: –0.70 (95% CI, –0.89 to –0.52) ml/min per 1.73 m² per yr).

Conclusions

Health care access, lifestyle, and comorbid conditions likely help explain the association between low educational attainment and incident CKD in young adults.

International relevance of two measures of awareness of age-related change (AARC)

BACKGROUND

A questionnaire assessing awareness of positive and negative age-related changes (AARC gains and losses) was developed in the US and Germany. We validated the short form of the measure (AARC-10 SF) and the cognitive functioning subscale from the 50-item version of the AARC (AARC-50) questionnaire in the UK population aged 50 and over.

METHODS

Data from 9410 participants (Mean (SD) age = 65.9 (7.1)) in the PROTECT cohort were used to explore and confirm the psychometric properties of the AARC measures including: validity of the factor structure; reliability; measurement invariance across men and women, individuals with and without a university degree, and in middle age, early old age, and advanced old age; and convergent validity with measures of self-perception of aging and mental, physical, and cognitive health. We explored the relationship between demographic variables (age, sex, marital status, employment, and university education) and AARC.

RESULTS

We confirmed the two-factor structure (gains and losses) of the AARC-10 SF and the AARC-50 cognitive functioning subscale. Both scales showed good reliability and good convergent validity for AARC losses, but weak convergent validity for AARC gains. For both scales metric invariance was held for the two subgroups defined by education level and age. For the AARC-50 subscale, but not for the AARC-10 SF, strong invariance was also held for the two subgroups defined by sex. Age, sex, marital status, employment, and university education predicted AARC gains and losses.

CONCLUSIONS

The AARC-10 SF and AARC-50 cognitive functioning subscale identify UK individuals who perceive age-related changes in their mental, physical, and cognitive health.

Cardiometabolic risk factors associated with educational level in older people: comparison between Norway and Brazil

BACKGROUND

The non-communicable diseases are the major causes of death both worldwide and in high-income countries such as Norway. Understanding whether policy programs affect the health of older adults, especially considering different realities, is crucial. We aimed to analyse cardiometabolic risk factors associated with educational level in elderly people from Norway and Brazil.

METHODS

A total of 555 elderly people recruited from Trondheim, Norway (n = 310, age 70.7 ± 0.8 years, body mass index (BMI) 26.2 ± 3.9 kg/m2) and from Ribeirao Preto, Brazil (n = 245, age 64.1 ± 8.1 years, BMI 28.2 ± 5.5 kg/m2). All analyses were adjusted for age and sex, considering country as an independent variable. The significance level considered was P < 0.05.

RESULTS

Brazilian people presented a higher incidence of overweight and higher waist circumference (WC) compared to Norwegian (28.2 ± 5.5 kg/m2 and 97.0 ± 14.7 cm versus 26.4 ± 3.9 kg/m2 and 92.1 ± 11.2 cm, respectively). When classified by education level, Brazilians presented higher values for BMI, WC and triglycerides (TG) than Norwegians with the same level of education (incomplete higher education), while Norwegians presented higher values for systolic blood pressure (SBP), cholesterol total (CT), high-density lipoprotein (HDL)-cholesterol, LDL-cholesterol and handgrip strength.

CONCLUSIONS

Both nationalities presented important cardiometabolic risk factors. However, when considering a low level of education, the Brazilian elderly people presented more cardiometabolic risk factors than Norwegians.

Alcohol-Related Disparities Among Women: Evidence and Potential Explanations

Although research on alcohol-related disparities among women is a highly understudied area, evidence shows that racial/ethnic minority women, sexual minority women, and women of low socioeconomic status (based on education, income, or residence in disadvantaged neighborhoods) are more likely to experience alcohol-related problems. These problems include alcohol use disorder, particularly after young adulthood, and certain alcohol-related health, morbidity, and mortality outcomes. In some cases, disparities may reflect differences in alcohol consumption, but in other cases such disparities appear to occur despite similar and possibly lower levels of consumption among the affected groups. To understand alcohol-related disparities among women, several factors should be considered. These include age; the duration of heavy drinking over the life course; the widening disparity in cumulative socioeconomic disadvantage and health in middle adulthood; social status; sociocultural context; genetic factors that affect alcohol metabolism; and access to and quality of alcohol treatment services and health care. To inform the development of interventions that might mitigate disparities among women, research is needed to identify the factors and mechanisms that contribute most to a group's elevated risk for a given alcohol-related problem.

The Unequal Effect of Income on Risk of Overweight/Obesity of Whites and Blacks with Knee Osteoarthritis: the Osteoarthritis Initiative

BACKGROUND

Although the protective effect of socioeconomic status (SES) against risk of overweight/obesity is well established, such effects may not be equal across diverse racial and ethnic groups, as suggested by the marginalization-related diminished returns (MDR) theory.

AIMS

Built on the MDR theory, this study explored racial variation in the protective effect of income against overweight/obesity of Whites and Blacks with knee osteoarthritis (OA).

METHODS

This cross-sectional study used baseline data of the OA Initiative, a national study of knee OA in the USA. This analysis included 4664 adults with knee OA, which was composed of 3790 White and 874 Black individuals. Annual income was the independent variable. Overweight/obesity status (body mass index more than 25 kg/m2) was the dependent variable. Race was the moderator. Logistic regressions were used for data analysis.

RESULTS

Overall, higher income was associated with lower odds of being overweight/obese. Race and income showed a statistically significant interaction on overweight/obesity status, indicating smaller protective effect of income for Blacks compared with Whites with knee OA. Race-stratified regression models revealed an inverse association between income and overweight/obesity for White but not Black patients.

CONCLUSIONS

While higher income protects Whites with knee OA against overweight/obesity, this effect is absent for Blacks with knee OA. Clinicians should not assume that the needs of high-income Whites and Blacks with knee OA are similar, as high-income Blacks may have greater unmet needs than high-income Whites. Racially tailored programs may help reduce the health disparities between Whites and Blacks with knee OA. The results are important given that elimination of racial disparities in obesity is a step toward eliminating racial gap in the burden of knee OA. This is particularly important given that overweight/obesity is not only a prognostic factor for OA but also a risk factor for cardiometabolic diseases and premature mortality.

Better Choice, Better Health? Social Integration and Health Inequality among International Migrants in Hangzhou, China

The aim of this study is to investigate the impact of social integration and socioeconomic status on immigrant health in China. Taking the framework of social determinants of health (SDH) as the theoretical starting point, this paper uses the Hangzhou sample of the 2018 Survey of Foreigners in China (SFRC2018) to explore two core factors affecting the health inequality of international migrants in China: the level of social integration following settlement, and socioeconomic status before and after coming to China. The results show that having a formal educational experience in China helped improve both the self-rated health status and self-assessed change in health of international migrants; that the socioeconomic status of an emigrant's home country affected self-rated health; and that the self-assessed change in health of immigrants from developing countries was significantly higher than those from developed countries. This study concludes that the health inequalities of immigrant populations in China must be understood in the context of China's specific healthcare system and treatment structure.

Inequalities in education and national income are associated with poorer diet: Pooled analysis of individual participant data across 12 European countries

Background

Malnutrition linked to noncommunicable diseases presents major health problems across Europe. The World Health Organisation encourages countries to conduct national dietary surveys to obtain data to inform public health policies designed to prevent noncommunicable diseases.

Methods

Data on 27334 participants aged 19-64y were harmonised and pooled across national dietary survey datasets from 12 countries across the WHO European Region. Weighted mean nutrient intakes were age-standardised using the Eurostat 2013 European Standard Population. Associations between country-level Gross Domestic Product (GDP) and key nutrients and nutrient densities were investigated using linear regression. The potential mitigating influence of participant-level educational status was explored.

Findings

Higher GDP was positively associated with total sugar intake (5·0% energy for each 10% increase in GDP, 95% CI 0·6, 9·3). Scandinavian countries had the highest vitamin D intakes. Participants with higher educational status had better nutritional intakes, particularly within lower GDP countries. A 10% higher GDP was associated with lower total fat intakes (-0·2% energy, 95% CI -0·3, -0·1) and higher daily total folate intakes (14μg, 95% CI 12, 16) in higher educated individuals.

Interpretation

Lower income countries and lower education groups had poorer diet, particularly for micronutrients. We demonstrate for the first time that higher educational status appeared to have a mitigating effect on poorer diet in lower income countries. It illustrates the feasibility and value of harmonising national dietary survey data to inform European policy regarding access to healthy diets, particularly in disadvantaged groups. It specifically highlights the need for strong policies supporting nutritional intakes, prioritising lower education groups and lower income countries.

Socioeconomic Differences in Trajectories of Functional Capacity Among Older Japanese: A 25-Year Longitudinal Study

OBJECTIVES

There is limited research on long-term changes in functional capacity among older Japanese, who differ significantly from their counterparts in Western, developed nations. This study aimed to identify distinct trajectories of functional capacity over a 25-year period and to explore socioeconomic differences in trajectory-group membership probabilities, using a national sample of older Japanese.

DESIGN

Longitudinal panel study with 8 observation points from 1987 to 2012.

SETTING AND PARTICIPANTS

The data came from the National Survey of the Japanese Elderly, which consisted of 6193 samples of community-dwelling Japanese aged 60 years and older at baseline.

METHODS

Functional capacity measure included basic and instrumental activities of daily living. Group-based mixture models were used for data analysis.

RESULTS

Among participants aged 60 to 74 years at baseline, 4 trajectories were identified: minimal disability (80.3%), late-onset disability (11.6%), early-onset disability (6.2%), and moderate disability (1.9%). Those aged ≥75 years at baseline experienced higher levels of disability but somewhat parallel trajectories, including minimal disability (73.3%), early-onset disability (11.2%), moderate disability (11.3%), and severe and worsening disability (4.2%). Lower socioeconomic status, including education and household income, was associated with a higher risk of experiencing trajectories of poorer functional capacity among those aged 60 to 74 years, but no such association existed among those aged ≥75 years.

CONCLUSIONS AND IMPLICATIONS

We found that approximately 70% to 80% of older Japanese maintained healthy functional capacity over time. Although we could not follow those who dropped out during the observation period, this study provided useful evidence that socioeconomic disparities in functional health converge with age. Our findings inform the design of health policies and interventions aiming to maintain functional health among older adults with diverse socioeconomic backgrounds. In particular, public policies aiming to reduce socioeconomic disparities should be emphasized to promote healthy aging.