Pain and self-harm: A systematic review

Kirtley, O. J., O'Carroll, R. E. and O'Connor, R. C. (2016) Pain and self-harm: A systematic review. Journal of Affective Disorders, 203, pp. 347-363. (doi:10.1016/j.jad.2016.05.068) (PMID:27323296)

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Abstract

Background: A growing body of research has explored altered physical pain threshold and tolerance in non-suicidal self-injury (NSSI) and suicidal self-harm. The evidence, however, is inconsistent such that the nature of the relationship is unclear, and whether or not this effect is also present in suicidal self-harm is equivocal. Methods: A keyword search of three major psychological and medical databases (PsycINFO, Medline and Web of Knowledge) was conducted, yielding 1,873 records. Following duplicate removal and screening, 25 articles were quality assessed, and included in the final systematic review. Results: There is strong evidence for increased pain tolerance in NSSI, and some evidence for this in suicidal individuals, but notably, there were no prospective studies. The review found a lack of substantive focus on psychological correlates of altered pain tolerance in this population. Several candidate explanatory mechanisms were proposed within the reviewed studies. Limitations: The current review was a narrative systematic review; methods used to assess pain were considered too heterogeneous to conduct a meta-analysis. Conclusions: The evidence suggests that there is elevated pain tolerance among those who engage in NSSI. Future prospective research should determine if altered pain tolerance is a cause or a consequence of the behaviour. The identification of psychological correlates of increased pain tolerance is a neglected area of research. It could provide opportunities for treatment/intervention development, if mediating or moderating pathways can be identified. Too few studies have directly investigated candidate explanatory mechanisms to draw definitive conclusions.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:O'Connor, Professor Rory and Kirtley, Dr Olivia
Authors: Kirtley, O. J., O'Carroll, R. E., and O'Connor, R. C.
College/School:College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > Mental Health and Wellbeing
Journal Name:Journal of Affective Disorders
Publisher:Elsevier
ISSN:0165-0327
ISSN (Online):1573-2517
Published Online:31 May 2016
Copyright Holders:Copyright © 2016 Elsevier
First Published:First published in Journal of Affective Disorders 203:347-363
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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