The proposed research will investigate violence exposure and workplace characteristics associated with PTSD at three psychiatric hospital sites across Ontario. Violence prevention training and work experience may help prepare psychiatric workers to handle violence and may mitigate adverse reactions when exposed. The research seeks to identify the characteristics of violence and other workplace characteristics that increase the risk of PTSD. The study will also examine help-seeking among psychiatric workers with PTSD and to identify whether these workers perceive a need for support and the barriers to accessing services and which services are perceived to be helpful.