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Type: Journal article
Title: Post-traumatic amnesia and the nature of post-traumatic stress disorder after mild traumatic brain injury
Author: Bryant, R.
Creamer, M.
O'Donnell, M.
Silove, D.
Clark, C.
McFarlane, A.
Citation: Journal of the International Neuropsychological Society, 2009; 15(6):862-867
Publisher: Cambridge Univ Press
Issue Date: 2009
ISSN: 1355-6177
Statement of
Richard A. Bryant, Mark Creamer, Meaghan O’Donnell, Derrick Silove, C. Richard Clark and Alexander C. Mcfarlane
Abstract: The prevalence and nature of post-traumatic stress disorder (PTSD) following mild traumatic brain injury (MTBI) is controversial because of the apparent paradox of suffering PTSD with impaired memory for the traumatic event. In this study, 1167 survivors of traumatic injury (MTBI: 459, No TBI: 708) were assessed for PTSD symptoms and post-traumatic amnesia during hospitalization, and were subsequently assessed for PTSD 3 months later (N = 920). At the follow-up assessment, 90 (9.4%) patients met criteria for PTSD (MTBI: 50, 11.8%; No-TBI: 40, 7.5%); MTBI patients were more likely to develop PTSD than no-TBI patients, after controlling for injury severity (adjusted odds ratio: 1.86; 95% confidence interval, 1.78–2.94). Longer post-traumatic amnesia was associated with less severe intrusive memories at the acute assessment. These findings indicate that PTSD may be more likely following MTBI, however, longer post-traumatic amnesia appears to be protective against selected re-experiencing symptoms.
Keywords: Trauma; Memory; Stress; Risk; Intrusions; Anxiety
Rights: Copyright © The International Neuropsychological Society 2009. Published by Cambridge University Press, 2009.
RMID: 0020093658
DOI: 10.1017/S1355617709990671
Grant ID:
Appears in Collections:Psychiatry publications

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