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Affective instability and impulsivity predict nonsuicidal self-injury in the general population : a longitudinal analysis

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Peters, Evyn M., Baetz, Marilyn, Marwaha, Steven, Balbuena, Lloyd and Bowen, Rudy (2016) Affective instability and impulsivity predict nonsuicidal self-injury in the general population : a longitudinal analysis. Borderline Personality Disorder and Emotion Dysregulation, 3 (1). doi:10.1186/s40479-016-0051-3 ISSN 2051-6673.

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Official URL: http://dx.doi.org/10.1186/s40479-016-0051-3

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Abstract

Background

Impulsivity and affective instability are related traits known to be associated with nonsuicidal self-injury, although few longitudinal studies have examined this relationship. The purpose of this study was to determine if impulsivity and affective instability predict future nonsuicidal self-injury in the general population while accounting for the overlap between these traits.

Methods

Logistic regression analyses were conducted on data from 2344 participants who completed an 18-month follow-up of the 2000 British National Psychiatric Morbidity Survey. Affective instability and impulsivity were assessed at baseline with the Structured Clinical Interview for DSM-IV Axis II Personality Disorders. Nonsuicidal self-injury was assessed at baseline and follow-up during semi-structured interviews.

Results

Affective instability and impulsivity predicted the onset of nonsuicidal self-injury during the follow-up period. Affective instability, but not impulsivity, predicted the continuation of nonsuicidal self-injury during the follow-up period. Affective instability accounted for part of the relationship between impulsivity and nonsuicidal self-injury.

Conclusions

Affective instability and impulsivity are important predictors of nonsuicidal self-injury in the general population. It may be more useful to target affective instability over impulsivity for the treatment of nonsuicidal self-injury.

Item Type: Journal Article
Subjects: R Medicine > RC Internal medicine
Divisions: Faculty of Science, Engineering and Medicine > Science > Psychology
Library of Congress Subject Headings (LCSH): Borderline personality disorder -- Interviews -- Great Britain, Self-mutilation, Affective disorders
Journal or Publication Title: Borderline Personality Disorder and Emotion Dysregulation
Publisher: BioMed Central Ltd.
ISSN: 2051-6673
Official Date: 13 December 2016
Dates:
DateEvent
13 December 2016Published
8 December 2016Accepted
13 December 2016Available
Volume: 3
Number: 1
DOI: 10.1186/s40479-016-0051-3
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)

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