| — Not available. |
| 1 A school-associated violent death is defined as "a homicide, suicide, or legal intervention (involving a law enforcement officer), in which the fatal injury occurred on the campus of a functioning elementary or secondary school in the United States" while the victim was on the way to or from regular sessions at school or while the victim was attending or traveling to or from an official school-sponsored event. Victims include students, staff members, and others who are not students, from July 1, 1992, through June 30, 2010 |
| 2 Youth ages 5–18 from July 1, 1992, through June 30, 2010. |
| 3 Youth ages 5–18 from July 1, 1992, through June 30, 2009. |
| 4 Youth ages 5–18 in the calendar year from 1992 to 2008. |
| 5 The data from 1999–2000 onward are subject to change until interviews with school and law enforcement officials have been completed. The details learned during the interviews can occasionally change the classification of a case. For more information on this survey, please see appendix A. |
| NOTE: "At school" includes on school property, on the way to or from regular sessions at school, and while attending or traveling to or from a school-sponsored event. Estimates were revised and may differ from previously published data. |
| SOURCE: Data on homicides and suicides of youth ages 5–18 at school and total school-associated violent deaths are from the Centers for Disease Control and Prevention (CDC), 1992–2010 School-Associated Violent Deaths Surveillance Study (SAVD), partially funded by the U.S. Department of Education, Office of Safe and Drug-Free Schools, previously unpublished tabulation (July 2011); data on total suicides of youth ages 5–18 are from the CDC, National Center for Injury Prevention and Control, Web-based Injury Statistics Query and Reporting System Fatal (WISQARS™ Fatal), 1999–2008, retrieved September 2011 from http://www.cdc.gov/injury/wisqars/index.html; and data on total homicides of youth ages 5–18 for the 1992–93 through 2008–09 school years are from the Supplementary Homicide Reports (SHR) collected by the Federal Bureau of Investigation and tabulated by the Bureau of Justice Statistics, preliminary data (June 2011). |