The Association between Neuroticism and Re-Attempted Suicide

Background: Strong evidence suggests that suicide attempters who repeat suicide (re-attempters) may differ from those with a single attempt (single attempters) in various clinical and sociodemographic factors. Furthermore, there is some evidence that re-attempters may be characterized by higher levels of neuroticism, a well-known risk factor for completed suicide compared to single attempters. Purpose: The aim of the present study was to investigate the possible association between neuroticism and re-attempted suicide. Methods and Materials: 230 recent drug-free suicide attempters were involved into the study. Clinical diagnoses were assessed by the Diagnostic and Statistical Manual of Mental Disorders, Third Edition-Revised (DSM-III-R). Personality traits were measured by the Karolinska Scale of Personality (KSP). Results and Conclusions: There was a significant association between re-attempted suicide, female gender, personality disorder and higher levels of impulsivity. We found that re-attempters had significantly higher levels of neuroticism compared to single attempters adjusted of gender, personality disorder diagnosis, age and impulsivity. Our result gives further evidence for the association between re-attempted suicide and neuroticism.