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Childhood trauma (CT) is correlated with suicidality among patients with bipolar disorder (BD). However, it has not been adequately investigated if a third factor, for instance impulsivity, mediates the effect of CT on suicidality in BD. This study aimed to explore potential mediatory effects of impulsivity in the pathway from CT to suicidality in BD. CT was assessed with the Early Trauma Inventory Self Report-Short Form (ETI-SR-SF), impulsivity with the Barratt Impulsivity Scale-11 (BIS-11) while lifetime suicidality was investigated with the Suicidal Behaviors Questionnaire-Revised (SBQ-R). The effect of childhood trauma on suicidality and impulsivity as well as the effect of impulsivity on suicidality were examined with multiple linear regressions, including gender, age and diagnosis (BD-I, BD-II) as covariates. Structural equation models were built and path analyses were performed (with AMOS 25 software and using bootstrapping in 1000 samples) for the examination of the mediatory role of BIS-11 and its subtypes in the effect of childhood trauma and its subtypes on suicidality. We included 78 BD euthymic patients (60.3% female, 67.9% BD-I). ETI-SR-SF significantly predicted SBQ-R (p=0.004) and BIS-11 (p |
