Ethnic differences in the dynamics of depressive symptoms in middle-aged and older Americans

The Association between Multiple Chronic Conditions and Depressive Symptoms: Intersectional Distinctions by Race, Nativity, and Gender

Using random coefficient growth curve analysis, this study utilizes 12 waves of data from the Health and Retirement Study (1994-2016; person-waves = 145,177) to examine the association between multiple chronic conditions (MCC) and depressive symptoms among older adults. Applying cumulative disadvantage and intersectionality theories, we also test whether the association between MCC and depressive symptoms differs by race, nativity, and gender. Findings reveal that MCC prevalence is highest among U.S.-born black women, whereas depressive symptoms are highest among foreign-born Hispanic women. Compared to men, MCC has a stronger effect on women's depressive symptoms. Furthermore, the MCC-depressive symptoms association is strongest for foreign-born Hispanic women. Despite an increase in MCC in the transition from midlife to late life, all race-nativity-gender groups experience a decline in depressive symptoms as they age. The decline in depressive symptoms is steepest for U.S.-born black and foreign-born Hispanic women. Study implications are discussed.

Sex differences in mental health among older adults: investigating time trends and possible risk groups with regard to age, educational level and ethnicity

OBJECTIVES

Older women report lower mental health compared to men, yet little is known about the nature of this sex difference. Therefore, this study investigates time trends and possible risk groups.

METHOD

Data from the Doetinchem Cohort Study (DCS) and the Longitudinal Aging Study Amsterdam (LASA) were used. General mental health was assessed every 5 years, from 1995 to 1998 onwards (DCS, n = 1412, 20-year follow-up, baseline age 55-64 years). Depressive and anxiety symptoms were assessed for two birth cohorts, from 1992/1993 onwards (LASA cohort 1, n = 967, 24-year follow-up, age 55-65 years,) and 2002/2003 onwards (LASA cohort 2, n = 1002, 12-year follow-up, age 55-65 years) with follow-up measurements every 3-4 years.

RESULTS

Mixed model analyses showed that older women had a worse general mental health (-6.95; -8.36 to 5.53; range 0-100, ∼10% lower), more depressive symptoms (2.09; 1.53-2.63; range 0-60, ∼30% more) and more anxiety symptoms (0.86; 0.54-1.18; range 0-11, ∼30% more) compared to men. These sex differences remained stable until the age of 75 years, where after they decreased due to an accelerated decline in mental health for men compared to women. Sex differences and their course by age were consistent over successive birth cohorts, educational levels and ethnic groups (Caucasian vs. Turkish/Moroccan).

CONCLUSION

There is a consistent female disadvantage in mental health across different sociodemographic groups and over decennia (1992 vs. 2002) with no specific risk groups.

Urban and Rural Differences in Trajectories of Depressive Symptoms in Later Life in the United States

OBJECTIVE

This research has two primary goals: to examine the relationship between urban residence and trajectories of depressive symptoms and to investigate whether this relationship differs by social isolation and loneliness.

METHOD

Data are from 2006, 2008, 2010, 2012, 2014, and 2016 waves of the Health and Retirement Study (HRS), a nationally representative sample of U.S. adults aged 51+ (n = 3,346 females and 2,441 males). We conduct latent growth curve analysis to predict both baseline and trajectories of depression based on urban or rural residency.

RESULTS

Residing in urban or rural areas is neither significantly associated with baseline nor the development of late-life depressive symptoms. For females, the relationship between urban residence and baseline depressive symptoms is explained by socioeconomic factors.

DISCUSSION

Findings of this study serve to better understand how social and geographic contexts shape long-term well-being of older adults.

Trajectories of Depression between 30s and 50s: Latent Growth Modeling

Objectives: Previous studies have primarily focused on depression among older adults. Given that middle age links young adulthood to older adulthood and encompasses a variety of changes in roles and status, which influence depression, it is important to understand the changes of depression during this period. Methods: This study used data from the National Longitudinal Survey of Youth 1979. The final sample consisted of 834 individuals, and four points in time were used: 34, 36, 40, and 50 years of age. The Latent Growth Model (LGM) was used to estimate the trajectories of depression. Results: The trajectories of depression present a non-linear change, referring to V-shaped curve. The conditional model shows that there are significant individual differences on initial status. Males were negatively associated with the latent initial level of depression. Individuals who showed higher self-esteem and cognitive ability were negatively associated with the latent initial level of depression. In addition, health insurance was negatively associated with the latent initial levels of depression. Both employment and net worth predicted lower intercepts of depression. Discussion: As the 40s is a bridge between the lowest levels of depression and a gradual increase of depression, service providers should be aware of changes of depression among middle-aged adults and spend more time and resources to encourage those individuals to prepare for changes in depression. Prevention programs for depression and providing more opportunities for employment and education to save money should be more focused on young adults.

Association of Race and Ethnicity With Late-Life Depression Severity, Symptom Burden, and Care

Importance

Knowledge gaps persist regarding racial and ethnic variation in late-life depression, including differences in specific depressive symptoms and disparities in care.

Objective

To examine racial/ethnic differences in depression severity, symptom burden, and care.

Design, Setting, and Participants

This cross-sectional study included 25 503 of 25 871 community-dwelling older adults who participated in the Vitamin D and Omega-3 Trial (VITAL), a randomized trial of cancer and cardiovascular disease prevention conducted from November 2011 to December 2017. Data analysis was conducted from June to September 2018.

Exposure

Racial/ethnic group (ie, non-Hispanic white; black; Hispanic; Asian; and other, multiple, or unspecified race).

Main Outcomes and Measures

Depressive symptoms, assessed using the Patient Health Questionnaire-8 (PHQ-8); participant-reported diagnosis, medication, and/or counseling for depression. Differences across racial/ethnic groups were evaluated using multivariable zero-inflated negative binomial regression to compare PHQ-8 scores and multivariable logistic regression to estimate odds of item-level symptom burden and odds of depression treatment among those with diagnosed depression.

Results

There were 25 503 VITAL participants with adequate depression data (mean [SD] age, 67.1 [7.1] years) including 12 888 [50.5%] women, 17 828 [69.9%] non-Hispanic white participants, 5004 [19.6%] black participants, 1001 [3.9%] Hispanic participants, 377 [1.5%] Asian participants, and 1293 participants [5.1%] who were categorized in the other, multiple, or unspecified race group. After adjustment for sociodemographic, lifestyle, and health confounders, black participants had a 10% higher severity level of PHQ-8 scores compared with non-Hispanic white participants (rate ratio [RR], 1.10; 95% CI, 1.04-1.17; P < .001); Hispanic participants had a 23% higher severity level of PHQ-8 scores compared with non-Hispanic white participants (RR, 1.23; 95% CI, 1.10-1.38; P < .001); and participants in the other, multiple, or unspecified group had a 14% higher severity level of PHQ-8 scores compared with non-Hispanic white participants (RR, 1.14; 95% CI, 1.04-1.25; P = .007). Compared with non-Hispanic white participants, participants belonging to minority groups had 1.5-fold to 2-fold significantly higher fully adjusted odds of anhedonia (among black participants: odds ratio [OR], 1.76; 95% CI, 1.47-2.11; among Hispanic participants: OR, 1.96; 95% CI, 1.43-2.69), sadness (among black participants: OR, 1.31; 95% CI, 1.07-1.60; among Hispanic participants: OR, 2.09; 95% CI, 1.51-2.88), and psychomotor symptoms (among black participants: OR, 1.77; 95% CI, 1.31-2.39; among Hispanic participants: OR, 2.12; 95% CI, 1.28-3.50); multivariable-adjusted odds of sleep problems and guilt appeared higher among Hispanic vs non-Hispanic white participants (sleep: OR, 1.24; 95% CI, 1.01-1.52; guilt: 1.84; 95% CI, 1.31-2.59). Among those with clinically significant depressive symptoms (ie, PHQ-8 score ≥10) and/or those with diagnosed depression, black participants were 61% less likely to report any treatment (ie, medications and/or counseling) than non-Hispanic white participants after adjusting for confounders (adjusted OR, 0.39; 95% CI, 0.27-0.56).

Conclusions and Relevance

In this cross-sectional study, significant racial and ethnic differences in late-life depression severity, item-level symptom burden, and depression care were observed after adjustment for numerous confounders. These findings suggest a need for further examination of novel patient-level and clinician-level factors underlying these associations.

Protocol for studying racial/ethnic disparities in depression care using joint information from participant surveys and administrative claims databases: an observational cohort study

INTRODUCTION

Current evidence indicates that older racial/ethnic minorities encounter disparities in depression care. Because late-life depression is common and confers major adverse health consequences, it is imperative to reduce disparities in depression care. Thus, the primary objectives of this protocol are to: (1) quantify racial/ethnic disparities in depression treatment and (2) identify and quantify the magnitude of these disparities accountable for by a multifactorial combination of patient, provider and healthcare system factors.

METHODS AND ANALYSIS

Data will be derived from the Vitamin D and Omega-3 Trial-Depression Endpoint Prevention (VITAL-DEP) study, a late-life depression prevention ancillary study to the VITAL trial. A total of 25 871 men and women, aged 50+ and 55+ years, respectively, were randomised in a 2×2 factorial randomised trial of heart disease and cancer prevention to receive vitamin D and/or fish oil for 5 years starting from 2011. Most participants were aged 65+ years old at randomisation. Medicare claims data for over 19 000 VITAL/VITAL-DEP participants were linked to conduct our study.The major study outcomes are depression treatment (antidepressant use and/or receipt of psychotherapy services) and adherence to medication treatment (antidepressant adherence and acceptability). The National Academy of Medicine framework for studying racial disparities was leveraged to select patient-level, provider-level and healthcare system-level variables and to address their potential roles in depression care disparities. Blinder-Oaxaca regression decomposition methods will be implemented to quantify and identify correlates of racial/ethnic disparities in depression treatment and adherence.

ETHICS AND DISSEMINATION

This study received Institutional Review Board (IRB) approval from the Partners Healthcare (PHS) IRB, protocol# 2010P001881. We plan to disseminate our results through publication of manuscripts patient engagement activities, such as study newsletters regularly sent out to VITAL participants, and presentations at scientific meetings.

TRIAL REGISTRATION NUMBER

NCT01696435.

"Crossover" in Depressive Symptoms Among Older Couples: Are Previous Findings Artifactual?

Objective: This study examined effects of a partner's depressive symptoms on those of a focal respondent. Method: Data were from the 2008-through-2014 waves of the Health and Retirement Study. Linear growth modeling was used to distinguish within- from between-person variation, and genetic instrumental variables to take endogeneity into account. Results: A partner's 2008 depressive symptoms had no associations with within-person change in those of a respondent between 2010 and 2014. Corresponding linkages with their between-person variation in 2010 were positive and significant for both genders. Among women, these last estimates remained intact in genetic instrumental variable models restricted to white couples. Discussion: Results indicate that contrary to previous literature, late life relationships are not marked by "crossover" of depressive symptoms. Women's affect may, however, be influenced by such transmission in the relationship's history. Beyond depression, findings suggest current theories of dyadic health effects may partly rest on flawed evidence.

Educational Mobility Across Generations and Depressive Symptoms Over 10 Years Among US Latinos

Few studies have collected intergenerational data to assess the association between educational mobility across multiple generations and offspring depression. Using data from the Sacramento Area Latino Study on Aging (1998-2008), we assessed the influence of intergenerational education on depressive symptoms over 10 years among 1,786 Latino individuals (mean age = 70.6 years). Educational mobility was classified as stable-low (low parental/low offspring education), upwardly mobile (low parental/high offspring education), stable-high (high parental/high offspring education), or downwardly mobile (high parental/low offspring education). Depressive symptoms were measured with the Center for Epidemiological Studies-Depression Scale (CES-D); higher scores indicated more depressive symptoms. To quantify the association between educational mobility and CES-D scores over follow-up, we used generalized estimating equations to account for repeated CES-D measurements and adjusted for identified confounders. Within individuals, depressive symptoms remained relatively stable over follow-up. Compared with stable-low education, stable-high education and upward mobility were associated with significantly lower CES-D scores (β = -2.75 and -2.18, respectively). Downwardly mobile participants had slightly lower CES-D scores than stable-low participants (β = -0.77). Our results suggest that sustained, low educational attainment across generations may have adverse mental health consequences, and improved educational opportunities in underresourced communities may counteract the adverse influence of low parental education on Latino depression.

Racial Variation in Depression Risk Factors and Symptom Trajectories among Older Women

OBJECTIVE

To assess racial variation in depression risk factors and symptom trajectories among older women.

METHODS

Using Nurses' Health Study data, participants (29,483 non-Hispanic white and 288 black women) aged 60 years or older, free of depression in 2000, were followed until 2012. Data on race and risk factors, selected a priori, were obtained from biennial questionnaires. Incident depression was defined as depression diagnosis, antidepressant use, or presence of severe depressive symptoms. Group-based trajectories of depressive symptoms were determined using latent variable modeling approaches.

RESULTS

Black participants had lower risk (hazard ratio: 0.76; 95% confidence interval: 0.57-0.99) of incident late-life depression compared with whites. Although blacks had higher prevalence than whites of some risk factors at study baseline, distributions of major contributors to late-life depression risk (low exercise, sleep difficulty, physical/functional limitation, pain) were comparable. There was evidence of effect modification by race for relations of region of birth (Southern birthplace), smoking, and medical comorbidity to depression risk; however, wide confidence intervals occurred among blacks because of smaller sample size. Four trajectories were identified: minimal symptoms-stable (58.3%), mild symptoms-worsening (31.4%), subthreshold symptoms-worsening (4.8%), and subthreshold symptoms-improving (5.5%). Probabilities of trajectory types were similar for blacks and whites.

CONCLUSION

Although overall trajectories of late-life depressive symptoms were comparable by race, there was racial variation in depression risk estimates associated with less-studied factors, such as U.S. region of birth. Future work may address unmeasured health and resilience determinants that may underlie observed findings and that could inform clinical assessment of late-life depression risk factors.

Mental health trajectories and their embeddedness in work and family circumstances: a latent state-trait approach to life-course trajectories

Mental health trajectories are known to be influenced by work and family circumstances. However, few studies have examined both of these influences simultaneously in a longitudinal manner. The life-course perspective stresses the importance of examining trajectories in terms of both stable and dynamic components. In this article we use structural equation models (latent state-trait, LST) to distinguish the stable and situational components of mental health trajectories and hypothesise that situational mental health is influenced by satisfaction with work and family, and this effect differs by gender. An analysis of data from a nationally representative sample of 1616 working Swiss residents (2000-2006) shows that mental health trajectories are mostly stable and only slightly sensitive to situational influences. However, situational influences in a given wave do predict situational influences in the next wave. Satisfaction with work and family influences situational mental health in both genders, but the impact is greater for men. In conclusion, the LST approach allows for the examination of mental health trajectories from a life-course perspective by distinguishing stable and situational components. Mental health trajectories are more stable and constant than they are dependent on work and family circumstances, and men are more sensitive to family circumstances than women.

Socioeconomic stratification and multidimensional health trajectories: evidence of convergence in later old age

OBJECTIVES

This research sought to examine socioeconomic stratification in the joint trajectories of physical, emotional, and cognitive functioning among older Americans and how it differs by age groups.

METHODS

We used data from a nationally representative sample of 9,237 Americans age 65 or older from the Health and Retirement Study, who were observed biennially from 1998 to 2010. Joint trajectories of physical, emotional, and cognitive functioning were characterized using a group-based mixture model. We then applied multinomial logistic regression analysis to evaluate their linkages with socioeconomic status and how the linkages differ by age groups.

RESULTS

We identified four distinct patterns of joint changes in physical, emotional, and cognitive functioning over time. Accounting for 29.3%, 23.5%, 24.5%, and 22.6% of the older Americans, respectively, these trajectory patterns characterized groups of individuals experiencing minimal to severe levels of impairment and deterioration. Lower education, income, and net worth were associated with trajectories featuring greater impairment or more rapid deterioration in these functional dimensions. Disparities based on education, however, attenuated in later old age, whereas health benefits associated with higher income and higher net worth persisted into advanced age.

DISCUSSION

Distinct patterns of joint trajectories of physical, emotional, and cognitive functioning exist in old age. There were significant socioeconomic differences in the joint trajectories, with education-based inequality in health converging in later old age. Further research identifying strategies to alleviate the disproportionate burden of poor multidimensional health trajectories in lower socioeconomic groups is important.

Race-related differences in depression onset and recovery in older persons over time: the health, aging, and body composition study

OBJECTIVES

To evaluate race-related differences in depression onset and recovery in older persons, overall and by sex, and examine race-related differences in mortality according to depression.

DESIGN

Prospective cohort study.

SETTING

General community in pre-designated zip code areas in Memphis, Tennessee, and Pittsburgh, Pennsylvania.

PARTICIPANTS

3,075 persons aged 70-79 years at baseline in the Health, Aging, and Body Composition study.

MEASUREMENTS

Depression was assessed at eight time points over 10 years using the 10-item Center for Epidemiologic Studies-Depression scale; patients were categorized as nondepressed (score less than 8) or depressed (score of 8 or higher). We created variables for transitions across each 18-month time interval, namely, from nondepressed or depressed to nondepressed, depressed, or death, and determined the association between race and the average likelihood of these transitions over time.

RESULTS

A higher percentage of blacks than whites were depressed at nearly all time points. Adjusting for demographics, common chronic conditions, and body mass index, blacks had a higher likelihood of experiencing depression onset than whites (odds ratio [OR]: 1.22; 95% confidence interval [CI]: 1.03-1.43); among men, blacks were more likely to experience depression onset than whites (OR: 1.44; 95% CI: 1.24-2.89). Blacks also had a higher likelihood of transitioning from nondepressed to death (OR: 1.79; 95% CI: 1.30-2.46). Overall and in sex-stratified analyses, race was not associated with recovery from depression or with the transition from depression to death.

CONCLUSION

Our findings highlight race differences in depression in older persons and encourage further research on the course of depression in older black patients.

The trajectory of depressive symptoms across the adult life span

IMPORTANCE

Long-term longitudinal studies are needed to delineate the trajectory of depressive symptoms across adulthood and to individuate factors that may contribute to increases in depressive symptoms in older adulthood.

OBJECTIVES

To estimate the trajectory of depressive symptoms across the adult life span; to test whether this trajectory varies by demographic factors (sex, ethnicity, and educational level) and antidepressant medication use; and to test whether disease burden, functional limitations, and proximity to death explain the increase in depressive symptoms in old age.

DESIGN

Longitudinal study.

SETTING

Community.

PARTICIPANTS

The study included 2320 participants (47.0% female; mean [SD] age at baseline, 58.1 [17.0] years; range, 19-95 years) from the Baltimore Longitudinal Study of Aging.

MAIN OUTCOMES AND MEASURES

Estimated trajectory of depressive symptoms modeled from 10, 982 assessments (mean [SD] assessments per participant, 4.7 [3.6]; range, 1-21) based on the Center for Epidemiologic Studies Depression scale and 3 subscales (depressed affect, somatic complaints, and interpersonal problems).

RESULTS

The linear (γ10 = 0.52; P < .01) and quadratic (γ20 = 0.43; P < .01) terms were significant, which indicated that depressive symptoms were highest in young adulthood, decreased across middle adulthood, and increased again in older adulthood. The subscales followed a similar pattern. Women reported more depressed affect at younger ages, but an interaction with age suggested that this gap disappeared in old age. Accounting for comorbidity, functional limitations, and impending death slightly reduced but did not eliminate the uptick in depressive symptoms in old age.

CONCLUSIONS AND RELEVANCE

Symptoms of depression follow a U-shaped pattern across adulthood. Older adults experience an increase in distress that is not due solely to declines in physical health or approaching death.

The prevalence of spirituality, optimism, depression, and fatalism in a bi-ethnic stroke population

To provide insight into the reduced post-stroke all-cause mortality among Mexican Americans, we explored ethnic differences in the pre-stroke prevalence of (1) spirituality, (2) optimism, (3) depression, and (4) fatalism in a Mexican American and non-Hispanic white stroke population. The Brain Attack Surveillance in Corpus Christi (BASIC) project is a population-based stroke surveillance study in Nueces County, Texas. Seven hundred ten stroke patients were queried. For fatalism, optimism, and depression scales, unadjusted ethnic comparisons were made using linear regression models. Regression models were also used to explore how age and gender modify the ethnic associations after adjustment for education. For the categorical spirituality variables, ethnic comparisons were made using Fisher's exact tests. Mexican Americans reported significantly more spirituality than non-Hispanic whites. Among women, age modified the ethnic associations with pre-stroke depression and fatalism but not optimism. Mexican American women had more optimism than non-Hispanic white women. With age, Mexican American women had less depression and fatalism, while non-Hispanic white women had more fatalism and similar depression. Among men, after adjustment for education and age, there was no ethnic association with fatalism, depression, and optimism. Spirituality requires further study as a potential mediator of increased survival following stroke among Mexican Americans. Among women, evaluation of the role of optimism, depression, and fatalism as they relate to ethnic differences in post-stroke mortality should be explored.

Multidimensional health-transition patterns among a middle-aged and older population

AIM

Previous studies on health transition have focused on single-dimension outcomes and minimally evaluated heterogeneity. This study aimed to explore heterogeneous and multidimensional health-transition patterns on comorbidity, frailty and disability while examining the factors predicting different patterns of health transition.

METHODS

This study drew on data from a nationwide and longitudinally-followed sample of 5131 Taiwanese aged 50 years and older who were interviewed in 1996, 1999, 2003 and 2007. Latent class analysis (LCA) and multinomial logistic regression were applied to identify health-transition patterns and their predictors.

RESULTS

We identified six health-transition classes by applying LCA, including "persistently healthy", "well-managed comorbidity", "originally comorbid and gradually deteriorating to disability", "deteriorating gradually and died in late stage of the follow-up period", "deteriorating and died in middle stage of the follow-up period", and "originally comorbid and died in early stage of the follow-up period". Using the "well-managed comorbidity" class as the reference group, men had higher probabilities of being in the categories of dying in the follow-up period, but a lower risk of deteriorating to disability. Younger baseline age, higher education, having social engagement and non-smoking were predictors of "persistently healthy" and were associated with a lower risk of deteriorating to disability and death. Having a spouse and health examinations were associated with a lower risk of death, and also a lower probability of "persistently healthy".

CONCLUSIONS

Heterogeneous and multidimensional health-transition patterns exist in middle-aged and older populations. Several factors might have an effect on health-transition patterns.

Multiple trajectories of depressive symptoms in middle and late life: racial/ethnic variations

This research aims to identify distinct courses of depressive symptoms among middle-aged and older Americans and to ascertain how these courses vary by race/ethnicity. Data came from the 1995-2006 Health and Retirement Study which involved a national sample of 17,196 Americans over 50 years of age with up to six repeated observations. Depressive symptoms were measured by an abbreviated version of the Center for Epidemiologic Studies Depression scale. Semiparametric group based mixture models (Proc Traj) were used for data analysis. Six major trajectories were identified: (a) minimal depressive symptoms (15.9%), (b) low depressive symptoms (36.3%), (c) moderate and stable depressive symptoms (29.2%), (d) high but decreasing depressive symptoms (6.6%), (e) moderate but increasing depressive symptoms (8.3%), and (f) persistently high depressive symptoms (3.6%). Adjustment of time-varying covariates (e.g., income and health conditions) resulted in a similar set of distinct trajectories. Relative to White Americans, Black and Hispanic Americans were significantly more likely to be in trajectories of more elevated depressive symptoms. In addition, they were more likely to experience increasing and decreasing depressive symptoms. Racial and ethnic variations in trajectory groups were partially mediated by SES, marital status, and health conditions, particularly when both interpersonal and intrapersonal differences in these variables were taken into account.

Racial differences in depression trajectories among older women: socioeconomic, family, and health influences

Despite recent increases in life course research on mental illness, important questions remain about the social patterning of, and explanations for, depression trajectories among women in later life. The authors investigate competing theoretical frameworks for the age patterning of depressive symptoms and the physical health, socioeconomic, and family mechanisms differentiating black and white women. Using data from the National Longitudinal Survey of Mature Women, the authors use linear mixed (growth curve) models to estimate trajectories of distress for women aged 52 to 81 years (N = 3,182). The results demonstrate that: (1) there are persistently higher levels of depressive symptoms among black women relative to white women throughout later life; (2) physical health and socioeconomic status account for much of the racial gap in depressive symptoms; and (3) marital status moderates race differences in distress. The findings highlight the importance of physical health, family, and socioeconomic status in racial disparities in mental health.