From childhood financial hardship to late-life depression: socioeconomic pathways

The importance of timing of socioeconomic disadvantage throughout development for depressive symptoms and brain structure

Prior studies have reported associations between socioeconomic disadvantage, brain structure and mental health outcomes, but the timing of these relations is not well understood. Using prospective longitudinal data from the Avon Longitudinal Study of Parents and Children (ALSPAC), this preregistered study examined whether socioeconomic disadvantage related differentially to depressive symptoms (n=3012-3530) and cortical and subcortical structures (n=460-733) in emerging adults, depending on the timing of exposure to socioeconomic disadvantage. Family income in early childhood and own income measured concurrently were both significantly related to depressive symptoms in emerging adulthood. Similar results were observed for perceived financial strain. In contrast, only family income in early childhood was associated with brain structure in emerging adulthood, with positive associations with intracranial volume and total and regional cortical surface area. The findings suggest that both objective and subjective aspects of one's financial standing throughout development relate to depressive symptoms in adulthood, but that specifically early life family income is related to brain structural features in emerging adulthood. This suggests that associations between socioeconomic disadvantage and brain structure originate early in neurodevelopment, highlighting the role of timing of socioeconomic disadvantage.

Long-term impacts of socioeconomic status and childhood trauma on depression in older adults: social work strategies

This study explores the impact of life course socioeconomic status (SES) and childhood trauma on depressive symptoms in Chinese middle-aged and older adults, while also examining the role of chronic diseases and implications for social work practice. Using data from 9,942 participants, structural equation was established to investigate these relationships. Results reveals that low childhood SES positively affects depressive symptoms through low SES in mid-to-late life (std. β = 0.168, p < .001), and domestic child abuse negatively impacts depressive symptoms through low SES in mid-to-late life (std. β=-0.020, p < .001). Additionally, experiencing peer bullying is directly associated with depressive symptoms (std. β = 0.145, p < .001). Exposure to domestic violence is directly related to depressive symptoms (std. β = 0.078, p < .001) and indirectly leads to more severe depressive symptoms through chronic disease (std. β = 0.023, p < .001). Social workers in healthcare settings can utilize these findings to better understand risk factors for depression and provide trauma-informed care and economic assistance across the life course. Additional training for social workers on the lasting impacts of childhood adversity is warranted. By intervening at both individual and policy levels, social work practitioners can help break cycles of poverty and poor health stemming from childhood.

The association of material deprivation with major depressive disorder and the role of loneliness and social support: A cross-sectional study

BACKGROUND

Existing research has highlighted the positive association of material deprivation, loneliness, and poor social support with major depressive disorder (MDD). However, there is limited information on the complex interplay between these risk factors. In this study, we investigated (1) whether loneliness and social support moderate the relationship between material deprivation and MDD and (2) whether social support moderates the association between material deprivation and loneliness.

METHODS

We conducted a cross-sectional study analyzing responses from a representative sample of the Spanish adult population, comprising 2790 individuals who were interviewed between 2019 and 2021. The 12-month prevalence of MDD was assessed using the Composite International Diagnostic Interview (CIDI). Loneliness was measured using the three-item UCLA Loneliness Scale, and social support was evaluated with the Oslo social support scale. Material deprivation was measured using an instrument developed by the Spanish National Institute of Statistics (INE). Regression models were constructed to investigate moderating effects.

RESULTS

About 25 % of participants experienced material deprivation and 2.8 % had MDD. Among those with lower levels of loneliness, the probability of MDD was almost 0.10 and no significant differences were found in relation to material deprivation. Conversely, differences depending on material deprivation ranged from 0.10 (95 % CI 0.03, 0.18) to 0.44 (95 % CI 0.24, 0.65) among those with higher levels of loneliness. Social support effectively moderated the association between material deprivation and loneliness.

LIMITATION

The cross-sectional nature limits causal inferences.

CONCLUSION

Social support has the potential to improve loneliness and mental health in individuals with economic difficulties.

Childhood adversity and depression of older adults: the moderating effect of social participation

Objective

Examine the effect of childhood adversity on depression in older adults and the regulatory impact that social participation has on depression.

Methods

Based on 6,704 standard-compliant research subjects, single factor analysis, multiple linear regression model, and tendency score matching were used to analyze the impact of childhood adversity on depression in older adults and the regulatory effect of social participation.

Results

The depression rate is higher among women, young age, low education, unmarried, in agricultural households, older adults with low annual income, pre-retirement work type in agriculture, non-drinking, and those with two or more chronic diseases (p < 0.05). Children who experienced adversity as children are more likely to suffer from depression as adults (β = 0.513, 0.590, 0.954, 0.983, 1.221, 0.953, 0.718; p < 0.05). Through the tendency score, the result is matched with the endogenous test. As well, older adults are more likely to suffer psychological damage from a greater number of childhood adversities in their early years (β = 1.440, 2.646, 4.122; p < 0.001). It has been shown that social participation will reduce the negative impact of low-income family economic circumstances on depression among older adults of all ages (β = -0.459,-0.567; p < 0.01), aggravate depression resulting from "neighborhood void of mutual assistance" and "no more fun to play" for older adults of all ages (β = 1.024, 0.894; p < 0.01), and exacerbate depression resulting from "loneliness because there are no friends" for the oldest old (β = 0.476, 0.779; p < 0.05).

Conclusion

Older adults who experience childhood adversity are more likely to suffer from depression. Social participation plays a regulatory role in the relationship between childhood adversity and depression in older adults. For older adults' mental health to improve, family and social adversity should be prevented, and moderate participation in society should be encouraged.

The mediating role of community identity in the relationship between social class and life satisfaction: Evidence from Chinese community residents

Research has shown that social class is an important predictor of life satisfaction. However, the underlying mechanism for this relationship is yet to be fully elucidated. The study examined the underlying mechanism based on the social identity approach to health. Study 1 recruited 577 community residents to complete self-report questionnaires. Correlation analysis showed that social class, community identity, and life satisfaction were positively correlated with each other. Regression analysis showed that community identity mediated the relationship. To increase the replicability and derive causal inference of the results, Study 2 was a randomized control trial (N = 76) that used the resource-availability task to manipulate subjective social class, and found that life satisfaction in the lower-class group was significantly lower than that in the control group. Further analysis showed that social class predicted life satisfaction through the mediating role of community identity. The findings provide potential strategies to enhance community residents' life satisfaction.

Socioeconomic status and incident depressive symptoms among older adults: A 3-year longitudinal study from the Japan Gerontological Evaluation Study

OBJECTIVES

The association between socioeconomic status (SES) and the onset of depressive symptoms has attracted considerable attention. However, few studies have simultaneously examined the association of multiple SES indicators, including "assets," with the onset of depressive symptoms. Therefore, this study examined the association of four SES indicators in old age ('years of education' 'equivalent income,' 'equivalent assets,' and 'the longest-held job') with new-onset depressive symptoms in a large Japanese dataset.

METHODS

This longitudinal study used panel data of cognitively and physically independent older adults from the Japan Gerontological Evaluation Study (JAGES) conducted in 2013 and 2016. Multivariate logistic regression analysis was conducted to examine the association of each SES indicator with new-onset depressive symptoms, and odds ratios and 95% confidence intervals (CIs) were calculated.

RESULTS

We analyzed the data of 40,257 older adults, with a mean age (± standard deviation) of 72.9 (±5.5) years. In the follow-up survey, 4292 older adults had new-onset depression symptoms (10.7%). 39.3% had 10-12 years of education. 36.9% had an equivalent income of up to JPY 1.99 million. 24.4% had equivalent assets of JPY 4-17.99 million. Most had a clerical job for the long time. Furthermore, fewer years of education (males: OR = 1.42, 95% CI = 1.22-1.64, p-value <0.001/females: 1.26, [1.09-1.47], p = 0.002), lower income (males: 1.64, [1.34-2.01], p < 0.001/females: 1.82, [1.49-2.22], p < 0.001), and fewer assets (males: 1.40, [1.16-1.68], p < 0.001/females: 1.21, [1.02-1.42], p = 0.025) resulted in higher odds of having new-onset depressive symptoms, even when other SES indicators were entered simultaneously.

CONCLUSIONS

All four SES indicators have an independent association with the development of new-onset depressive symptoms among older adults, reflecting different aspects of SES. The association between the "longest-held job" and new-onset depressive symptoms can be largely explained by other SES indicators. A multifaceted and lifetime approach is required to prevent the onset of depressive symptoms in old age.

Early versus late onset depression: sociodemographic and clinical characteristics

Background

Late-onset depression is different from early-onset depression in its sociodemographic and clinical characteristics and risk factors. This study aimed to demonstrate the differences in sociodemographic characteristics as well as clinical presentation between late-onset depression (after the age of 60 years) and early-onset depression (before the age of 45 years) and to determine the sociodemographic risk factors for late onset depression. Fifty-five patients between 18 and 45 years of age (group 1) and 55 patients aged 60 years and above (group 2) diagnosed for the first time with major depressive disorder were compared regarding sociodemographic and clinical characteristics. They were recruited from the psychiatric clinic at Sohag University Hospital. All participants were subjected to a Structured Clinical Interview for DSM-IV (SCID-IV), sociodemographic data form, Beck Depression Inventory-Second Edition (BDI-II), and Apathy Evaluation Scale (AES).

Results

The patients in group 2 were more commonly single (29%), employed (74.54%), living in rural areas (56.36%), and had high school education (41.81%). While the patients in group 2 were more commonly widows (18.18%), unemployed (61.81%), had less than high school education (47.27%), and had chronic diseases (78.81%). Significant risk factors for late onset depression are being widow, unemployed, having low socioeconomic status, and having a chronic medical disease. Patients with late-onset depression were more commonly presented with apathy, cognitive impairment, and somatic symptoms, as well as sleep disturbance (mean±SD 57±6, 70.9%, 61.81%, and 81.81%, respectively) than early-onset depression (mean±SD 49± 4, 47.27%, 36.36%, and 70.9%, respectively).

Conclusions

Cases with late onset depression are featured by being unemployed, widow, having low socioeconomic status and low educational level, suffering from a chronic medical condition and living in an urban area. In late onset depression, somatic symptoms, apathy, sleep disturbances, as well as cognitive impairment are prevalent presenting symptoms.

Financial Problems in Established Adulthood: Implications for Depressive Symptoms and Relationship Quality with Parents

Using two waves of data from the Family Exchanges Study (2008 and 2013), this study examined changes in financial problems before and after the Great Recession and investigated the implications for adults' depressive symptoms and relationship quality with parents. Participants in established adulthood (N = 170, age 30-46 in 2013) provided information about their financial difficulties and depressive symptoms, as well as negative relationship quality with each parent (parent-child tie; N = 316) at baseline and 5 years later. Results showed that a growing number of participants experienced financial problems between the two waves, rising from 16 to 72% of participants. Moreover, 14% of participants indicated continuing financial problems and 33% reported decreased income over the 5 year observation period. Financial problems at baseline, continuing financial problems across the observation period, and decreased income over time were associated with participants' increased depressive symptoms, after controlling for their baseline depressive symptoms. Results from multilevel models also revealed that adult participants had more strained relationships with their parents if they experienced more financial problems at the follow-up interview. The harmful effect of financial problems on relationship quality with parents was partially explained by adult participants' depressive symptoms. Findings of this study highlight the important role of financial hardship for persons in established adulthood and their intergenerational ties.

Family Income Mediates the Effect of Parental Education on Adolescents' Hippocampus Activation During an N-Back Memory Task

Introduction: Hippocampus, a medial temporal lobe structure, has significant implications in memory formation and learning. Although hippocampus activity is believed to be affected by socioeconomic status (SES), limited knowledge exists on which SES indicators influence hippocampus function. Purpose: This study explored the separate and combined effects of three SES indicators, namely parental education, family income, and neighborhood income, on adolescents’ hippocampus activation during an N-Back memory task. As some of the effects of parental education may be through income, we also tested if the effect of parental education on hippocampus activation during our N-Back memory task is mediated by family or neighborhood income. Methods: The Adolescent Brain Cognitive Development (ABCD) study is a national multi-center investigation of American adolescents’ brain development. Functional magnetic resonance imaging (fMRI) data of a total sample of 3067 9–10-year-old adolescents were used. The primary outcome was left- hippocampus activation during the N-Back memory task (mean beta weight for N-Back run 1 2 back versus 0 back contrast in left hippocampus). The independent variable was parental education. Family income and neighborhood income were two possible mediators. Age, sex, and marital status were the covariates. To test mediation, we used hierarchical linear regression models first without and then with our mediators. Full mediation was defined according to Kenny. The Sobel test was used to confirm statistical mediation. Results: In the absence of family and neighborhood income in the model, higher parental educational attainment was associated with lower level of left hippocampus activation during the N-Back memory task. This effect was significant while age, sex, and marital status were controlled. The association between parental educational attainment and hippocampus activation during the N-Back memory task was no more significant when we controlled for family and neighborhood income. Instead, family income was associated with hippocampus activation during the N-Back memory task. These findings suggested that family income fully mediates the effect of parental educational attainment on left hippocampus activation during the N-Back memory task. Conclusions: The effect of parental educational attainment on adolescents’ hippocampus activation during an N-Back memory task is fully explained by family income. That means low family income is why adolescents with low-educated parents show highlighted hippocampus activation during an N-Back memory task. Given the central role of the hippocampus in learning and memory and as income is a modifiable factor by tax and economic policies, income-redistribution policies, fair taxation, and higher minimum wage may have implications for promotion of adolescent equality and social justice. There is a need to focus on family-level economic needs across all levels of neighborhood income.

Combined Effects of Ethnicity and Education on Burden of Depressive Symptoms over 24 Years in Middle-Aged and Older Adults in the United States

Ethnicity and educational attainment are among the major social determinants of depression in the general population. While high education credentials protect individuals against depressive symptoms, this protection may be weaker for ethnic minority groups such as Hispanic Whites compared to the majority group (non-Hispanic Whites). Built on marginalization-related diminished returns (MDRs), the current study used 24-year follow-up data from a nationally representative sample of middle-aged and older adults to explore ethnic variation in the protective effect of education levels against the burden of depressive symptoms over time. Data for this analysis were borrowed from the Health and Retirement Study (HRS 1992-ongoing), a nationally representative longitudinal study. HRS followed 8314 middle-aged and older adults (50+ years old) for up to 24 years. From this number, 763 (9.2%) were Hispanic White, and 7551 (90.8%) were non-Hispanic White Americans. Education level was the independent variable. We had two outcomes. Firstly, using cluster analysis, individuals were categorized to low- and high-risk groups (regarding the burden of depressive symptoms over 24 years); secondly, average depressive symptoms were observed over the 24 years of follow up. Age and gender were the covariates. Ethnicity was the moderator. Linear and logistic regression were used for analysis. Logistic regression showed that, overall, high educational credentials reduced the odds of chronic depressive symptoms over the 24 years of follow-up. Linear regression also showed that higher years of education were associated with lower average depressive symptoms over time. Both models showed statistically significant interactions between ethnicity and graduation, indicating a smaller protective effect of high education against depressive symptoms over the 24 years of follow-up time among Hispanic with respect to non-Hispanic White people. In line with the MDRs, highly educated Hispanic White Americans remain at high risk for depressive symptoms, a risk that is unexpected given their education. The burden of depressive symptoms, however, is lowest for highly educated non-Hispanic White Americans. Policies that exclusively focus on equalizing educational gaps across ethnic groups may fail to eliminate the ethnic gap in the burden of chronic depressive symptoms, given the diminished marginal health return of education for ethnic minorities. Public policies must equalize not only education but also educational quality across ethnic groups. This aim would require addressing structural and environmental barriers that are disproportionately more common in the lives of ethnic minorities across education levels. Future research should test how contextual factors, residential segregation, school segregation, labor market practices, childhood poverty, and education quality in urban schools reduce the health return of educational attainment for highly educated ethnic minorities such as Hispanics.