Lifetime suicidal behaviors and psychotic-like experiences in the general population: the role of childhood trauma, depression and cognitive biases.
Poster B113, Tuesday, October 9, 11:30 am - 1:00 pm, Essex Ballroom
Łukasz Gawęda1, Renata Pionke2, Martyna Krężołek1, Dorota Frydecka3, Barnaby Nelson4, Andrzej Cechnicki5; 1II Department of Psychiatry, The Medical University of Warsaw, Poland, 2Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland, 3Department of Psychiatry, Wroclaw Medical University, Poland, 4Orygen, The National Centre of Excellence in Youth Mental Health, The University of Melbourne, Australia; Centre for Youth Mental Health, The University of Melbourne, Australia., 5Department of Community Psychiatry, Chair of Psychiatry, Medical College, Jagiellonian University, Krakow, Poland.
Background: Psychotic experiences are far more prevalent in the population than psychotic disorders and are associated with a wide range of depressive, anxiety and behavioral disorders, as well as increased risk for psychotic disorder. Recently, psychotic experiences have been highlighted as a potentially valuable clinical marker of risk for suicidal behavior. The aim of our study was to investigate relationships between suicidal ideation and behaviors, psychotic-like experiences, depression, childhood trauma and cognitive biases. Methods: A total of 3495 (2199 females; mean age 26.39, SD=4.71) individuals in the general population (psychotic disorders were excluded) were assessed with self-report scales that measure traumatic life events (The childhood experience of care and abuse questionnaire), psychotic-like experiences (Prodromal Questionnaire), cognitive biases (Davos Assesment of Cognitive Biases Scale), suicidal ideation and behaviors and a history of depression diagnosis. We proposed an explanatory model of the relationship between trauma and suicidal ideation, that takes psychotic-like experiences into account. Our model was tested with path analysis. Results: The direct effect of childhood trauma on suicidal ideation (β=0.505, p<0.001) was significantly reduced after psychotic-like experiences, history of depression and cognitive distortions were included (β=0.292, p<0.001)). The direct effect of childhood trauma on suicidal behaviors (β= 0.421, p<0.001)) was significantly reduced after psychotic-like experiences, history of depression and cognitive distortions (β =0.221, p<0.001). Discussion: The results of our study suggest that psychotic-like experiences, along with other variables in our model, are related to suicidal ideation and attempts. Understanding this association has the potential to critically bolster suicide prevention efforts.
Topic Area: Ultra High Risk / Prodromal Research