Influences on childhood depressive symptoms: The effects of trauma and distress tolerance across age and sex groups

Self-concept mediates the relationships between childhood traumatic experiences and adolescent depression in both clinical and community samples

BACKGROUND

Childhood trauma is a pivotal risk factor for adolescent depression. While the association between childhood trauma and depression is well-established, the mediating role of self-concept has not been acknowledged. Specifically, limited attention has been paid to how childhood maltreatment impacts adolescent depression through physical and social self-concept, both in clinical and community samples. This study aims to investigate how distinct and cumulative childhood trauma affects adolescent depression, as well as the potential mediating role of self-concept in their relationships.

METHODS

We recruited 227 depressed adolescents (dataset 1, 45 males, age = 15.34 ± 1.96) and 574 community adolescents (dataset 2, 107 males, age = 16.79 ± 0.65). Each participant was assessed on five subtypes of childhood trauma severity, cumulative trauma index, physical and social self-concept, and depression. Mediation models were tested separately in the clinical and community samples.

RESULTS

Clinically depressed adolescents experienced a higher level of trauma severity, a greater number of trauma subtypes, and had lower levels of physical and social self-concept compared to community adolescents. Analyses on childhood trauma severity and cumulative trauma index jointly indicated that physical and social self-concept played mediation roles in the relationships between childhood trauma experiences and depression. Moreover, the mediating effects of self-concept were stronger in depressed adolescents when compared to community samples.

CONCLUSIONS

Our findings suggest that physical and social self-concept play mediating roles in the pathway linking childhood trauma and adolescent depression, particularly in clinically depressed individuals.

Sex differences in depression for childhood cancer survivors

OBJECTIVE

This study examines the differential association between sex and depression, and the possible mediating pathways.

METHODS

We analysed survey data from 296 (age 7-17.1 years) cancer survivors from three centres affiliated with Beijing Children's Hospital. Linear regression analysis was used to assess the association between sex and depression. Quantile regression analysis was used to estimate the regression coefficients (β) and 95% confidence intervals for sex in depression at different quantiles. Mediation analysis with multiple mediators was used to explore the effects of sex on depression.

RESULTS

Using linear regression, we found that the age ranged from 8.7 to 10.4 years and the regression coefficient of sex on depression was significant (β = -2.75, p = 0.03). Quantile regression results showed a significant negative association between sex and depression in the 0.30-0.75 quantiles. Mediation analysis revealed that boys were 1.545 times more depressed than girls, with family resilience, self-perceived burden, and behavioural problems explaining approximately 16.79%, 21.57%, and 43.94% of the sex difference, respectively. The combined effect of family functioning, resilience, social support, self-perceived burden, and behavioural problems might explain the 89.17% sex difference.

CONCLUSION

Clinicians should consider sex effects when assessing depression in childhood cancer survivors and target sex-specific interventions for further treatment.

Distress tolerance across substance use, eating, and borderline personality disorders: A meta-analysis

BACKGROUND

Distress tolerance (DT) has received increased attention in recent years due to its purported role in dysregulated behaviours and their clinical manifestations, such as problematic substance use (PSU), disordered eating behaviours (e.g., binge-eating and purging; DEB), and borderline personality disorder (BPD) symptomatology. Despite the proposed transdiagnostic utility of DT across PSU, DEB, and BPD, there has yet to be a systematic and comprehensive examination characterising and comparing its association with this class of impulsive-type psychopathology.

METHODS

A systematic search was conducted across five electronic databases using search terms designed to capture extant literature on the association between DT and PSU, DEB, and BPD symptomatology. A series of meta-analyses were undertaken on correlation coefficients from 81 studies to examine the association between DT and each psychopathology domain, as well as impulsive-type psychopathology overall. Moderator analyses were conducted to examine whether these relationships were moderated by DT measurement type, sample type, age, and gender.

RESULTS

DT shared significant, negative, medium correlations with PSU (r = -.18,), DEB (r = -.20), and BPD symptomatology (r = -.27). The magnitude of these associations was not significantly different across the three psychopathology domains, supporting transdiagnostic conceptualisation. DT measurement type, age, and sample type moderated several of these indicated relationships.

LIMITATIONS

The majority of studies were conducted in adult samples from Western countries, limiting understanding of these relationships across development and different cultures.

CONCLUSIONS

The present findings support the putative transdiagnostic role of DT across PSU, DEB, and BPD, which may ultimately inform novel, cross-cutting interventions.