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Journal Article

Citation

Perroud N, Baud P, Ardu S, Krejci I, Mouthon D, Vessaz M, Guillaume S, Jaussent I, Olié E, Malafosse A, Courtet P. J. Affect. Disord. 2013; 146(2): 246-253.

Affiliation

Department of Psychiatry, School of Medicine, University of Geneva, Geneva, Switzerland. Electronic address: nader.perroud@hcuge.ch.

Copyright

(Copyright © 2013, Elsevier Publishing)

DOI

10.1016/j.jad.2012.09.012

PMID

23044284

Abstract

BACKGROUND: Personality traits have been suggested as possible risk factors for suicidal behaviours. Cloninger's model of personality (TCI), given its neurobiological background, might provide an ideal tool for the identification of dimensions associated with suicide attempt. METHODS: A number of 1333 suicide attempters and 589 non-suicide attempters suffering from different DSM-IV Axis I disorders were assessed using either the temperament and character inventory (TCI) or the tridimensional personality questionnaire (TPQ), as well as other self-report questionnaires evaluating dimensions associated with suicidal behaviour, such as impulsivity and anger traits. The severity of suicide attempts and the methods used were also assessed. Subjects were genotyped for polymorphisms within the key genes involved in monoaminergic pathways and the HPA axis. RESULTS: Compared with non-suicide attempters, suicide attempters scored higher for harm avoidance (HA) and novelty seeking (NS), and lower for self-directedness (SD). The difference was independent of Axis I disorders. Higher HA and NS scores were associated with a greater severity of suicidal behaviour. A multivariate model showed that HA was the single temperamental dimension independently related to suicide attempt history, beside impulsivity and anger-related traits. The genetic factors investigated did not play a significant role in modulating these temperamental dimensions. LIMITATIONS: The TCI was available for only half of the sample. CONCLUSIONS: Early detection of subjects displaying high HA and low SD, associated with high impulsivity and poor anger control, may help to prevent suicidal behaviours. Physicians should therefore be aware of these risk factors so that they can offer the best primary care intervention.


Language: en

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