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Personality traits as prospective predictors of suicide attempts

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Abstract:

Yen S, Shea MT, Sanislow CA, Skodol AE, Grilo CM, Edelen MO, Stout RL, Morey LC, Zanarini MC, Markowitz JC, McGlashan TH, Daversa MT, Gunderson JG. Personality traits as prospective predictors of suicide attempts. Objective: 

To examine higher order personality factors of negative affectivity (NA) and disinhibition (DIS), as well as lower order facets of impulsivity, as prospective predictors of suicide attempts in a predominantly personality disordered sample. Method: 

Data were analyzed from 701 participants of the Collaborative Longitudinal Personality Disorders Study with available follow-up data for up to 7 years. Cox proportional hazards regression analyses was used to examine NA and DIS, and facets of impulsivity (e.g. urgency, lack of perseverance, lack of premeditation and sensation seeking), as prospective predictors of suicide attempts. Results: 

NA, DIS and all facets of impulsivity except for sensation seeking were significant in univariate analyses. In multivariate models which included sex, childhood sexual abuse, course of major depressive disorder and substance use disorders, only NA and lack of premeditation remained significant in predicting suicide attempts. DIS and the remaining impulsivity facets were not significant. Conclusion: 

NA emerged as a stronger and more robust predictor of suicide attempts than DIS and impulsivity, and warrants greater attention in suicide risk assessment. Distinguishing between facets of impulsivity is important for clinical risk assessment.

Keywords: attempted suicide; personality disorders; self-harm; temperament

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1600-0447.2009.01366.x

Affiliations: 1: Department of Psychiatry and Human Behavior, Brown Medical School, Providence, RI 2: Department of Psychiatry, Yale Medical School, New Haven, CT 3: Sunbelt Collaborative and the University of Arizona College of Medicine, Phoenix, AZ 4: Department of Psychology, Texas A&M University, College Station, TX 5: Department of Psychiatry, McLean Hospital, Harvard Medical School, Boston, MA 6: Department of Psychiatry, New York State Psychiatric Institute, New York NY, USA

Publication date: September 1, 2009

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