- In the 2009-2010 school year, there were 1.9 million nonfatal crimes committed at school, ranging from assault to theft.
- 37% of US students reported the presence of gangs in their schools.
- 1 in 12 teens in high school are injured or threatened with a weapon each year.
- 77% of students are bullied mentally, verbally, or physically.
- Young people who bully are more likely to smoke, drink alcohol, and get into fights.
- Middle school students are more than twice as likely as high school students to be affected by school violence.
- About 8% of eighth graders stay home at least once a month to avoid a bully.
- Revenge is the strongest motivation for school shootings.
- From July 1, 2009 through June 30, 2010, there were 33 school-associated violent deaths in elementary and secondary schools in the US.
- Nearly 50% of homicide perpetrators gave some type of warning signal, including making a threat or leaving a note, prior to the event.
- Most school-associated violent deaths occur during transition times – before and after the school day and during lunch.
Centers for Disease Control and Prevention