Cognitive factors as mediators of the relationship between childhood trauma and depression symptoms : the mediating roles of cognitive overgeneralisation, rumination, and social problem-solving

Background: Childhood trauma has negative immediate and long-term impacts on depression. Questions remain, however, regarding the cognitive factors influencing this relationship. This study aimed to investigate the role of three cognitive factors – cognitive overgeneralisation, rumination and social problem-solving – as mediating factors in the relationship between childhood trauma and symptoms of depression.

Methods: We conducted a cross-sectional study in Iran from March to July 2023. Participants (N = 227; Mean age 32.44 ± 8.95 years) with depression completed measures of childhood trauma, depression, self-overgeneralisation, cognitive errors, memory specificity, rumination and social problem-solving. The conceptual model was assessed using structural equation modelling.

Results: Structural equation modelling indicated that childhood trauma had a positive direct effect on depression symptoms. Childhood trauma had a positive indirect effect on depression symptoms through both self-overgeneralisation and rumination and a negative indirect effect on depression through effective social problem-solving strategies.

Conclusions: The findings suggest increased exposure to childhood trauma may be associated with elevated depression and self-overgeneralisation, rumination, and effective social problem-solving strategies may play an important role in this relationship. These findings hold potential implications for those working with patients with depression and a history of childhood trauma.

HIGHLIGHTS

• Since the relationship between childhood trauma and depression is not straightforward, the study addresses a significant gap in the understanding of the relationship between childhood trauma and depression symptoms by focusing on cognitive factors as potential mediators among depressed patients.
• Childhood trauma not only has a direct positive effect on depression symptoms but also indirectly influences depression through self-overgeneralisation and rumination, which contribute to elevated depression, while effective social problem-solving strategies act as a protective factor, leading to decreased depression symptoms.
• The significance of above cognitive overgeneralisation factors in shaping the relationship between childhood trauma and depression symptoms suggests that therapeutic interventions targeting these cognitive factors might be hold promise in improving mental health outcomes for this vulnerable population.