The effects of childhood trauma on stress-related vulnerability factors and indicators of suicide risk: An ecological momentary assessment study

Background: Childhood trauma is experienced by approximately one third of young people in the United Kingdom and has been shown to confer an increased risk for mental health difficulties in adulthood. Understanding the associations between these factors before negative health outcomes manifest in adulthood is imperative to help inform the development of interventions. The aims of this study were two -fold; first, to investigate the effects of childhood trauma on daily stress -related vulnerability factors over a period of 7 days and to test whether any observed relationships were moderated by protective or risk factors. Second, to explore the indirect effects of childhood trauma on reasons for living, optimism, daily suicide ideation, defeat and entrapment through the daily stress -related vulnerability factors. Methods: 212 participants were recruited to an ecological momentary assessment study to complete three diaries per day for a 7 -day period. Participants completed daily measures of stress, hassles, executive functioning, impulsivity, sleep quality (stress -related vulnerability factors) as well as measures of reasons for living, optimism, daily thoughts of suicide, defeat and entrapment. The Childhood Trauma Questionnaire was also completed at baseline. Results: Analyses found that childhood trauma was significantly associated with higher scores on the daily stressrelated vulnerability factors and positively related to each of the daily indicators of suicide risk. The study also uncovered key pathways whereby trauma had indirect effects on reasons for living, optimism, daily thoughts of suicide, defeat and entrapment through executive functioning, impulsivity, sleep quality and stress. Limitations: The measures of executive function and sleep were self -reported and future research ought to replicate the current findings using more objective methods. Discussion: The findings from this study highlight the complexity of childhood trauma and its damaging effects on stress -related vulnerability factors and poorer mental health outcomes. Greater understanding of pathways by which trauma may impact later health outcomes is essential for development of interventions.