Motor vehicle crashes were the leading cause of death for children and adolescents, representing 20% of all deaths; firearm-related injuries were the second leading cause of death, responsible for 15% of deaths. Among firearm deaths, 59% were homicides, 35% were suicides, and 4% were unintentional injuries (e.g., accidental discharge). (The intent was undetermined in 2% of firearm deaths.) In contrast, among U.S. adults (≥20 years of age), 62% of firearm deaths were from suicide and 37% were from homicide. Furthermore, although unintentional firearm deaths were responsible for less than 2% of all U.S. firearm deaths, 26% occurred among children and adolescents.