Neurocognitive correlates of probable posttraumatic stress disorder following traumatic brain injury
Journal of Psychosomatic Research(2022)
Abstract
Introduction: Neurocognitive problems associated with posttraumatic stress disorder (PTSD) can interact with impairment resulting from traumatic brain injury (TBI).Research question: We aimed to identify neurocognitive problems associated with probable PTSD following TBI in a civilian sample.Material and methods: The study is part of the CENTER-TBI project (Collaborative European Neurotrauma Effectiveness Research) that aims to better characterize TBI. For this cross-sectional study, we included patients of all severities aged over 15, and a Glasgow Outcome Score Extended (GOSE) above 3. Participants were assessed at six months post-injury on the PTSD Checklist-5 (PCL-5), the Trail Making Test (TMT), the Rey Auditory Verbal Learning Test (RAVLT) and the Cambridge Neuropsychological Test Automated Battery (CANTAB). Primary analysis was a complete case analysis. Regression analyses were performed to investigate the association between the PCL-5 and cognition.Results: Of the 1134 participants included in the complete case analysis, 13.5% screened positive for PTSD. Probable PTSD was significantly associated with higher TMT-(B-A) (OR = 1.35, 95% CI: 1.14-1.60, p < .001) and lower RAVLT-delayed recall scores (OR = 0.74, 95% CI: 0.61-0.91, p = .004) after controlling for age, sex, psychiatric history, baseline Glasgow Coma Scale and education.Discussion and conclusion: Poorer performance on cognitive tests assessing task switching and, to a lesser extent, delayed verbal recall is associated with probable PTSD in civilians who have suffered TBI.
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Key words
Cognition,Head injury,Neuropsychology,Posttraumatic stress disorder,Stress
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