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https://hdl.handle.net/2440/57817
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Type: | Journal article |
Title: | Support for the mutual maintenance of pain and post-traumatic stress disorder symptoms |
Author: | Liedl, A. O'Donnell, M. Creamer, M. Silove, D. McFarlane, A. Knaevelsrud, C. Bryant, R. |
Citation: | Psychological Medicine, 2010; 40(7):1215-1223 |
Publisher: | Cambridge Univ Press |
Issue Date: | 2010 |
ISSN: | 0033-2917 1469-8978 |
Statement of Responsibility: | A. Liedl, M. O’Donnell, M. Creamer, D. Silove, A. McFarlane, C. Knaevelsrud and R. A. Bryant |
Abstract: | Background: Pain and post-traumatic stress disorder (PTSD) are frequently co-morbid in the aftermath of a traumatic event. Although several models attempt to explain the relationship between these two disorders, the mechanisms underlying the relationship remain unclear. The aim of this study was to investigate the relationship between each PTSD symptom cluster and pain over the course of post-traumatic adjustment. Method: In a longitudinal study, injury patients (n=824) were assessed within 1 week post-injury, and then at 3 and 12 months. Pain was measured using a 100-mm Visual Analogue Scale (VAS). PTSD symptoms were assessed using the Clinician-Administered PTSD Scale (CAPS). Structural equation modelling (SEM) was used to identify causal relationships between pain and PTSD. Results: In a saturated model we found that the relationship between acute pain and 12-month pain was mediated by arousal symptoms at 3 months. We also found that the relationship between baseline arousal and re-experiencing symptoms, and later 12-month arousal and re-experiencing symptoms, was mediated by 3-month pain levels. The final model showed a good fit [x2=16.97, df=12, p>0.05, Comparative Fit Index (CFI)=0.999, root mean square error of approximation (RMSEA)=0.022]. Conclusions: These findings provide evidence of mutual maintenance between pain and PTSD. |
Keywords: | Mediator mutual maintenance pain post-traumatic stress disorder structural equation modelling |
Description: | Published online by Cambridge University Press 08 Oct 2009 |
Rights: | © Cambridge University Press 2010 |
DOI: | 10.1017/S0033291709991310 |
Grant ID: | http://purl.org/au-research/grants/nhmrc/359284 http://purl.org/au-research/grants/nhmrc/300304 |
Published version: | http://dx.doi.org/10.1017/s0033291709991310 |
Appears in Collections: | Aurora harvest Public Health publications |
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