Suicide is characterized by a fatal, self-inflicted act committed with the explicit or inferred intent to die; however, suicidal behavior incorporates a larger set of behaviors that may precede suicide, including suicidal ideations, suicidal communications, and suicide attempts. These behaviors range in level of lethality and probability of death and may be used to assess risk for more extreme behaviors. This entry examines suicidal behavior, the prevalence of youth suicide, risk factors, and prevention, with a specific focus on individuals with intellectual and developmental disorders.

Suicidal Behavior

Suicidal ideation may be defined as thoughts or wishes to be dead or to kill oneself that vary in intensity and pervasiveness and are often a precursor to more serious forms of suicidal behavior. These cognitions may range from being ...

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