The White Ribbon Foundation has released a report on the impact of violence on young people:
The report documents the extent and impact of violence among children and young people, and it provides a framework for primary prevention strategies among children and young people. Because of the scope of the topic, the report has in many cases been informed by reviews of the literature and metaevaluations as well as primary research publications. After documenting the nature and causes of violence as viewed or experienced by young people, the report reviews prevention programs before making recommendations to address the issues raised.
An assault on our future: the impact of violence on young people and their relationships
Michael Flood and Lara Fergus
http://www.whiteribbonday.org.au/media/documents/AssaultOnOurFutureFinal.pdf