M28. BIDIRECTIONAL INFLUENCES BETWEEN PSYCHOTIC EXPERIENCES AND SUICIDAL IDEATION IN CHILEAN ADOLESCENTS: THE ROLE OF DEPRESSIVE SYMPTOMS AS MEDIATORS

Background Along with other domains of psychopathology, adolescents are at increased risk for psychotic experiences (PE) as well as for suicidal ideation (SI) and suicidal attempts. Literature has found robust associations between PE and SI, with suicidal risk appearing higher in subjects with persistent PE, in general and clinical samples. However, the associations between psychotic experiences and suicidal ideation are not clearly understood, and the role of common risk factors in this link, such as depression (DS), is controversial. Moreover, causality has yet to be properly stablished between PE and SI. A study recently found psychosis may be consequential to suicidal behavior. Under the novel “suicidal drive hypothesis for psychosis” framework, we examined whether depressive symptoms mediate the association between psychotic experiences and suicidal ideation on cross-sectional data from a community sample of adolescents. Additionally, we tested this mediating role when both PE and SI were the outcome variables.