• Meaghan L O'Donnell, Mark Creamer, Alexander C N Holmes, Steven Ellen, Alexander C McFarlane, Rodney Judson, Derrick Silove, and Richard A Bryant.
• Australian Centre for Posttraumatic Mental Health, Department of Psychiatry, East Melnourne, Victoria, Australia. mod@unimelb.edu.au
• J Trauma. 2010 Sep 1;69(3):627-32.

BackgroundThis study aimed to index the prevalence of posttraumatic stress disorder (PTSD) after injury requiring intensive care unit (ICU) admission to investigate whether an ICU admission after injury increases risk for PTSD and to identify predictors of PTSD after ICU admission.MethodsA two-group (those admitted to the ICU vs. those not admitted to ICU), prospective, cohort study of 829 randomly selected injury patients from five major trauma hospitals across Australia. We collected information on factors that may increase risk for PTSD including demographic variables (gender, age, income, education, and marital status), preinjury mental health status (prior trauma, psychiatric history, and prior social support), and injury characteristics (mild traumatic brain injury, injury severity, length of hospital admission, discharge destination, pain, and perceived threat). PTSD was measured at 12 months by structured clinical interview.ResultsICU patients were significantly more likely to have PTSD at 12 months than trauma controls (17% vs. 7%). Stepwise logistic regressions showed that an ICU admission significantly contributed to the development of PTSD after controlling for demographic, preinjury mental health status, and injury characteristic variables.ConclusionsInjury patients are three times more likely to develop later PTSD if they have an ICU admission. Given we controlled for many risk variables, it seems that an ICU admission itself may contribute to the development of PTSD. Mental health services such as screening and early intervention may be particularly useful for this population.

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