• Dimitry S Davydow, Douglas Zatzick, Catherine L Hough, and Wayne J Katon.
• Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98104, USA. ddavydo1@u.washington.edu
• Gen Hosp Psychiatry. 2013 May 1;35(3):226-32.

ObjectiveThe objective was to identify risk factors for posttraumatic stress disorder (PTSD) and depressive symptoms after medical-surgical intensive care unit (ICU) admission.MethodThis longitudinal investigation included 150 medical-surgical ICU patients. We assessed acute stress and post-ICU PTSD symptoms with the PTSD Checklist-Civilian Version and post-ICU depressive symptoms with the Patient Health Questionnaire-9. Mixed-model linear regression ascertained associations between patient and clinical characteristics and repeated measures of post-ICU PTSD and depressive symptoms.ResultsThe prevalences of substantial PTSD and depressive symptoms were 16% and 31% at 3 months post-ICU and 15% and 17% at 12 months post-ICU, respectively. In-hospital substantial acute stress symptoms [beta: 16.9, 95% confidence Interval (CI): 11.4, 22.4] were independently associated with increased post-ICU PTSD symptoms. Lifetime history of major depression (beta: 2.2, 95% CI: 0.1, 4.2), greater prior trauma exposure (beta: 0.5, 95% CI: 0.2, 0.9) and in-hospital substantial acute stress symptoms (beta: 3.5, 95% CI: 0.8, 6.2) were independently associated with increased post-ICU depressive symptoms.ConclusionsIn-hospital acute stress symptoms may represent a modifiable risk factor for psychiatric morbidity in ICU survivors. Early interventions for at-risk ICU survivors may improve longer-term psychiatric outcomes.Copyright © 2013 Elsevier Inc. All rights reserved.

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