Racialized Health Inequities: Quantifying Socioeconomic and Stress Pathways Using Moderated Mediation

Racism drives population health inequities by shaping the unequal distribution of key social determinants of health, such as socioeconomic resources and exposure to stressors. Research on interrelationships among race, socioeconomic resources, stressors, and health has proceeded along two lines that have largely remained separate: one examining differential effects of socioeconomic resources and stressors on health across racialized groups (moderation processes), and the other examining the role of socioeconomic resources and stressors in contributing to racial inequities in health (mediation processes). We conceptually and analytically integrate these areas using race theory and a novel moderated mediation approach to path analysis to formally quantify the extent to which an array of socioeconomic resources and stressors-collectively and individually-mediate racialized health inequities among a sample of older adults from the Health and Retirement Study. Our results yield theoretical contributions by showing how the socioeconomic status-health gradient and stress processes are racialized (24% of associations examined varied by race), substantive contributions by quantifying the extent of moderated mediation of racial inequities (approximately 70%) and the relative importance of various social factors, and methodological contributions by showing how commonly used simple mediation approaches that ignore racialized moderation processes overestimate-by between 5% and 30%-the collective roles of socioeconomic status and stressors in accounting for racial inequities in health.

Intersectional Approaches to Minority Aging Research

Purpose of Review

Growing racial/ethnic diversity among America's older adults necessitates additional research specifically focused on health and well-being among aging minoritized populations. Although Black and Latinx adults in the USA tend to face worse health outcomes as they age, substantial evidence points to unexpected health patterns (e.g., the race paradox in mental health, the Latino health paradox) that challenge our understanding of health and aging among these populations. In this review, we demonstrate the value of intersectionality theory for clarifying these health patterns and highlight the ways that intersectionality has been applied to minority aging research. To advance the field, we also make several recommendations for incorporating intersectional approaches in future scholarship on minority aging.

Recent Findings

Scholars have applied intersectional approaches to health and aging to unravel how social statuses and social conditions, such as race, ethnicity, gender, nativity, incarceration history, geographic region, and age, produce distinct shared experiences that shape health trajectories through multiple mechanisms.

Summary

We highlight common intersectional approaches used in minority aging research and underscore the value of this perspective for elucidating the complex, and often unexpected, health patterns of aging minoritized populations. We identify several key lessons and propose recommendations to advance scholarship on minority aging.

Skin Tone and the Health Returns to Higher Status

This study addresses two questions. First, why do Black Americans exhibit worse health outcomes than White Americans even at higher levels of socioeconomic status (SES)? Second, are diminished health returns to higher status concentrated among Black Americans with darker skin color? Novel hypotheses are tested with biosocial panel data from Add Health, a nationally representative cohort of Black and White adolescents who have transitioned to adulthood. We find that White and light-skin Black respondents report improved health after achieving higher SES, on average, while their darker-skin Black peers report declining health. These patterns persist regardless of controls for adolescent health status and unmeasured between-person heterogeneity. Moreover, increased inflammation tied to unfair treatment and perceptions of lower status helps to account for patterns of diminished health returns for dark-skin Black groups. Our study is the first to document skin tone heterogeneity in diminished health returns and one of few studies to identify life course stress processes underlying such disparities. We consider additional processes that could be examined in future studies, as well as the broader health and policy implications of our findings.

Structural racism in school contexts and adolescent depression: Development of new indices for the National Longitudinal Study of Adolescent to Adult Health and beyond

Racial discrimination is an important predictor of racial inequities in mental and physical health. Scholars have made progress conceptualizing and measuring structural forms of racism, yet, little work has focused on measuring structural racism in social contexts, which are especially relevant for studying the life course consequences of racism for health. Using the National Longitudinal Study of Adolescent to Adult Health, we take a biosocial, life course approach and develop two life stage-specific indices measuring manifestations of structural racism in school contexts in adolescence, a sensitive period of development. The first is a school contextual disadvantage index (CDI), which captures differences in resources and opportunities across schools that have been partly determined by socio-historic structural racism that has sorted Black students into more disadvantaged schools. The second is a school structural racism index (SRI), which measures differences in resources and opportunities between Black and white students within schools. Then, we relate these indices to adolescent depressive symptoms. We find that among both Black and white students of both genders, higher CDI levels are associated with more depressive symptoms. However, Black students are twice as likely to be in schools with a CDI above the median compared to white students. We also find that, controlling for the CDI, the SRI is positively associated with depressive symptoms among Black boys and girls only. Finally, the CDI and the SRI interact to produce a pattern where the likelihood of depressive symptoms increases as the SRI increases, but only among Black boys and girls in low-disadvantage schools. These findings underscore the importance of measuring structural racism in social contexts in multifaceted ways to study life course health inequities.

Contextualizing Educational Disparities in Health: Variations by Race/Ethnicity, Nativity, and County-Level Characteristics

Educational disparities in health are well documented, yet the education-health relationship is inconsistent across racial/ethnic and nativity groups. These inconsistencies may arise from characteristics of the early life environments in which individuals attain their education. We evaluate this possibility by investigating (1) whether educational disparities in cardiometabolic risk vary by race/ethnicity and nativity among Black, Hispanic, and White young adults; (2) the extent to which racial/ethnic-nativity differences in the education-health relationship are contingent on economic, policy, and social characteristics of counties of early life residence; and (3) the county characteristics associated with the best health at higher levels of education for each racial/ethnic-nativity group. Using data from the National Longitudinal Study of Adolescent to Adult Health, we find that Black young adults who achieve high levels of education exhibit worse health across a majority of contexts relative to their White and Hispanic counterparts. Additionally, we observe more favorable health at higher levels of education across almost all contexts for White individuals. For all other racial/ethnic-nativity groups, the relationship between education and health depends on the characteristics of the early life counties of residence. Findings highlight place-based factors that may contribute to the development of racial/ethnic and nativity differences in the education-health relationship among U.S. young adults.

Is the Black-White mental health paradox consistent across age, gender, and psychiatric disorders?

OBJECTIVES

The Black-White mental health epidemiological paradox (i.e. Black Americans' lower or similar rates of mental disorder relative to Whites) characterizes the literature on race and mental health. Yet, research has generally paid less attention to how such findings may vary across other social statuses that shape mental health. This study assessed whether the Black-White paradox is consistent across gender, age groups, and psychiatric disorders, including lifetime mood, anxiety, and substance use disorders.

METHOD

We used data from the National Comorbidity Survey-Replication (NCS-R) and National Survey of American Life (NSAL), 2001-2003 (N = 4,591 African Americans; 6,668 non-Hispanic Whites). Psychiatric disorders were measured with the World Mental Health Survey Initiative version of the WHO Composite International Diagnostic Interview (WMH-CIDI). Binary logistic regression models were conducted to assess racial patterns of lifetime mental disorders across age and gender. Wald tests were performed to assess age and gender group differences in Black-White patterns of mental disorder.

RESULTS

The Black-White mental health paradox generally extends across lifetime mood, anxiety, and substance use disorders and is consistent across age and gender groups. One exception is middle-aged (45-64 years) Black men, who had higher odds of lifetime substance use disorder relative to their White male middle-aged peers. This difference is no longer statistically significant after accounting for education and employment. We also found more similarity in mental disorders between older Blacks and Whites relative to their younger counterparts, suggesting that Black-White mental health differences are most pronounced among younger age groups.

CONCLUSION

Our findings contribute to the broader literature on the Black-White mental health paradox by demonstrating that this epidemiological pattern persists across various mental disorder types and, at times, depends on age group and gender. Given that Black-Whte differences are less pronounced among older adults, future research should consider the ways life course theory might inform our understanding of the paradox. Findings also suggest that substance use services are critical to address the needs of middle-aged Black men of lower socioeconomic status who are disproportionately affected by substance use disorder, yet have relatively lower mental health care utilization rates.

Race, Lifetime SES, and Allostatic Load among Older Adults

BACKGROUND

Prior research demonstrates that Black Americans receive fewer health benefits at high levels of SES relative to Whites. Yet, few studies have considered the role of lifetime SES (i.e. changes in SES from childhood to adulthood) in shaping these patterns among older adults. This study investigates the extent to which racial disparities in allostatic load (AL), an indicator of accelerated physiological aging, vary across levels of lifetime SES among Black and White adults aged 50+.

METHODS

With data from the Nashville Stress and Health Study, modified Poisson regression models were used to assess racial differences in the odds of high AL (4+ high-risk biomarkers) among Black and White older adults (N=518) within each level of lifetime SES (i.e., stable low SES, upward mobility, downward mobility, stable high SES).

RESULTS

Stable high SES was associated with greater odds of high AL; there was not a significant association between other lifetime SES trajectories and AL. However, the magnitude of racial disparities varied across levels of lifetime SES, with a significant Black-White difference in AL observed only among upwardly mobile (OR=1.76, 95% CI=1.24-2.51) and high SES groups (OR=2.22, 95% CI=1.37-3.58).

CONCLUSIONS

Our study demonstrates that racial disparities in AL among older adults depends on individuals' lifetime SES trajectories, and that older Black Americans receive fewer health benefits for achieving higher SES. These findings underscore the need to evaluate socioeconomic resources across the life course to clarify the extent of racial disparities among aging populations.

Race/Ethnicity, Gender, and Trajectories of Depressive Symptoms Across Early- and Mid-Life Among the Add Health Cohort

While disparities in depressive symptoms by race/ethnicity and gender have been documented, left unclear is how such status characteristics intersect to influence mental health, particularly across early life and among a diverse set of population subgroups. This study investigates how intra- and inter-individual trends in depressive symptoms unfold across a 30-year span (ages 12-42) and are structured by the intersection of race/ethnicity and gender among White, Black, Hispanic, and Asian American young adults (N = 18,566). Analyses use data from the National Longitudinal Study of Adolescent to Adult Health, a nationally representative study of adolescents who have been followed through their fourth decade of life. We draw on Waves I-IV and a representative subsample of the brand new Wave V data. Growth curve models indicated depressive symptoms decreased across adolescence and young adulthood before increasing in the early 30s. Racial/ethnic minorities reported more depressive symptoms than Whites. Women reported more depressive symptoms than men and experienced especially steep increases in their late 30s. Racial/ethnic-gender disparities remained stable with age, except for Hispanic-White disparities among women and Asian American-White disparities among men, which narrowed with age. Overall, findings demonstrate dynamic inequalities across a longer period of the life span than was previously known, as well as heterogeneity in trajectories of poor mental health within and between racial/ethnic-gender groups. Results also suggest that Black and Asian American women experience the highest mental health risks and that interventions for reducing disparities in depressive symptoms should focus on adults in their late 20s/early 30s, particularly women of color.

The Depths of Despair Among US Adults Entering Midlife

OBJECTIVES

To test whether indicators of despair are rising among US adults as they age toward midlife and whether this rise is concentrated among low-educated Whites and in rural areas.

METHODS

We used data from the National Longitudinal Study of Adolescent to Adult Health, a nationally representative study of US adolescents in 1994. Our sample was restricted to individuals who participated in 1 or more of 5 waves (1994-2017) and self-identified as non-Hispanic White, non-Hispanic Black, or Hispanic (n = 18 446). We examined change in indicators of despair from adolescence to adulthood using multilevel regression analysis, testing for differences by race/ethnicity, education, and rurality.

RESULTS

We found evidence of rising despair among this cohort over the past decade. This increase was not restricted to low-educated Whites or to rural areas.

CONCLUSIONS

Results suggest that generally rising despair among the young adult cohort now reaching midlife that cuts across racial/ethnic, educational, and geographic groups may presage rising midlife mortality for these subgroups in the next decade.

Light Privilege? Skin Tone Stratification in Health among African Americans

Skin tone is a significant marker used by others to evaluate and rank the social position of minorities. While skin color represents a particularly salient dimension of race, its consequences for health remains unclear. This study uses four waves of panel data from the Coronary Artery Risk Development in Young Adults (CARDIA) Study and random intercept multilevel models to address three research questions critical to understanding the skin color-health relationship among African American adults (N=1,680): what is the relationship between skin color and two global measures of health (cumulative biological risk and self-rated health)? To what extent are these relationships gendered? Do socioeconomic resources, stressors, and discrimination help explain the skin color-health relationship? Findings indicate that dark-skinned women have more physiological deterioration and self-report worse health than lighter-skinned women. These associations are not evident among men, and socioeconomic factors, stressors, and discrimination do not explain the light-dark disparity in physiological deterioration among women. Differences in self-ratings of health among women are partially explained by education and income. Results of this study highlight heterogeneity in determinants of health among African Americans, and provide a more nuanced understanding of health inequality by identifying particularly disadvantaged members of racial groups that are often assumed to have monolithic experiences.

BMI Trajectories in Adulthood: The Intersection of Skin Color, Gender, and Age among African Americans

This study addresses three research questions critical to understanding if and how skin color shapes health among African Americans: (1) Does skin color predict trajectories of body mass index (BMI) among African Americans across ages 32 to 55? (2) To what extent is this relationship contingent on gender? (3) Do sociodemographic, psychosocial, and behavioral factors explain the skin color-BMI relationship? Using data from the Coronary Artery Risk Development in Young Adults Study and growth curve models, results indicate that dark-skinned women have the highest BMI across adulthood compared to all other skin color-gender groups. BMI differences between dark- and lighter-skinned women remain stable from ages 32 to 55. Among men, a BMI disadvantage emerges and widens between light- and dark-skinned men and their medium-skinned counterparts. Observed sociodemographic characteristics, stressors, and health behaviors do not explain these associations. Overall, findings suggest that skin color- and gender-specific experiences likely play an important role in generating BMI inequality.

Intersecting Social Inequalities and Body Mass Index Trajectories from Adolescence to Early Adulthood

This study combines multiple-hierarchy stratification and life course perspectives to address two research questions critical to understanding U.S. young adult health. First, to what extent are racial-ethnic inequalities in body mass index (BMI) gendered and/or classed? Second, do racial-ethnic, gender, and socioeconomic inequalities in BMI widen or persist between adolescence and early adulthood? Using data from the National Longitudinal Survey of Youth 1997 cohort and growth curve models, results suggest that among white, black, and Hispanic American men and women ages 13 to 31, racial-ethnic inequality in BMI is greatest among women. Black women experience the highest adolescent BMI and the greatest increases in BMI with age. Furthermore, socioeconomic resources are less protective against weight gain for blacks and Hispanics, with the nature of these relationships varying by gender. Findings present a more nuanced picture of health inequality that renders visible the disproportionate burden of poor health experienced by marginalized groups.

Psychosocial Mechanisms Underlying Older Black Men's Health

Objectives

To evaluate the psychosocial mechanisms underlying older Black men's self-rated health, we examined: (a) the individual, cumulative, and collective effects of stressors on health; (b) the direct effects of psychosocial resources on health; and (c) the stress-moderating effects of psychosocial resources.

Method

This study is based on a nationally representative sample of Black men aged 51-81 (N = 593) in the Health and Retirement Study (HRS). Ordinary least squares (OLS) regression models of the psychosocial determinants of self-rated health draw on data from the HRS 2010 and 2012 Core datasets and Psychosocial Modules.

Results

Each of the six measures of stressors as well as a cumulative measure of stressors are predictive of worse self-rated health. However, when considered collectively, only two stressors (chronic strains and traumatic events) have statistically significant effects. Furthermore, two of the five psychosocial resources examined (mastery and optimism) have statistically significant protective effects, and prayer moderates the harmful effects of traumatic events on self-rated health.

Discussion

Conventional measures of stressors and coping resources-originally developed to account for variance in health outcomes among predominantly white samples-may not capture psychosocial factors most salient for older Black men's health. Future research should incorporate psychosocial measures that reflect their unique experiences.

Using Multiple-hierarchy Stratification and Life Course Approaches to Understand Health Inequalities: The Intersecting Consequences of Race, Gender, SES, and Age

This study examines how the intersecting consequences of race-ethnicity, gender, socioeconomics status (SES), and age influence health inequality. We draw on multiple-hierarchy stratification and life course perspectives to address two main research questions. First, does racial-ethnic stratification of health vary by gender and/or SES? More specifically, are the joint health consequences of racial-ethnic, gender, and socioeconomic stratification additive or multiplicative? Second, does this combined inequality in health decrease, remain stable, or increase between middle and late life? We use panel data from the Health and Retirement Study (N = 12,976) to investigate between- and within-group differences in in self-rated health among whites, blacks, and Mexican Americans. Findings indicate that the effects of racial-ethnic, gender, and SES stratification are interactive, resulting in the greatest racial-ethnic inequalities in health among women and those with higher levels of SES. Furthermore, racial-ethnic/gender/SES inequalities in health tend to decline with age. These results are broadly consistent with intersectionality and aging-as-leveler hypotheses.

Racial/Ethnic Disparities in Men's Health: Examining Psychosocial Mechanisms

This study uses data from the Health and Retirement Study and an approach informed by the Biopsychosocial Model of Racism as a Stressor to examine the extent to which socioeconomic status, stressors, discrimination, and neighborhood conditions are mechanisms underlying racial/ethnic disparities in functional limitations among men. Results reveal that racial/ethnic differences in socioeconomic status, stressors, discrimination, and neighborhood conditions-individually and collectively-account for a substantial proportion of racial/ethnic disparities in functional limitations. Findings suggest that the social determinants of health for men of color need to be more seriously considered in investigations of and efforts to address health disparities.

A Life Course Approach to Inequality: Examining Racial/Ethnic Differences in the Relationship between Early Life Socioeconomic Conditions and Adult Health Among Men

OBJECTIVE

Previous research has documented a relationship between childhood socioeconomic conditions and adult health, but less is known about racial/ethnic differences in this relationship, particularly among men. This study utilizes a life course approach to investigate racial/ethnic differences in the relationships among early and later life socioeconomic circumstances and health in adulthood among men.

DESIGN

Panel data from the Health and Retirement Study and growth curve models are used to examine group differences in the relationships among childhood and adult socioeconomic factors and age-trajectories of self-rated health among White, Black and Mexican American men aged 51-77 years (N=4147).

RESULTS

Multiple measures of childhood socioeconomic status (SES) predict health in adulthood for White men, while significantly fewer measures of childhood SES predict health for Black and Mexican American men. Moreover, the health consequences of childhood SES diminish with age for Black and Mexican American men. The childhood SES-adult health relationship is largely explained by measures of adult SES for White men.

CONCLUSIONS

The life course pathways linking childhood SES and adult health differ by race/ethnicity among men. Similar to arguments that the universality of the adult SES-health relationship should not be assumed, results from our study suggest that scholars should not assume that the significance and nature of the association between childhood SES and health in adulthood is similar across race/ethnicity among men.