Introduction
Due to improved surgical techniques and more efficient decision making in treating severely injured patients, survival rates among severely injured patients have increased over the years. There are discrepancies in the literature whether the severity of injury is a risk factor for development of posttraumatic stress symptoms or not. This study was initiated to evaluate the incidence and identify risk factors for developing posttraumatic stress symptoms, using both extensive trauma related data and data assessing the psychological trauma, in a population of severely injured patients.