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Emergency departments are underutilized sites for suicide prevention.

Each year approximately 1,000,000 people die by suicide, accounting for nearly 3% of all deaths and more than half (56%) of all violent deaths in the world (Krug, Dahlberg, Mercy, Zwi, & Lozano, 2002). Suicide ideation and suicide attempts are strongly linked to death by suicide and powerfully predict further suicidal behavior (Institute of Medicine, 2002). There are an estimated 100–200 suicide attempts for each completed suicide in young people, and 4 attempts for each completed suicide in the elderly (Institute of Medicine, 2002). Emergency departments (EDs) are the most important site, epidemiologically speaking, for treating those who make suicide attempts. EDs in the United States, for example, record over 500,000 suicide-related visits annually (Larkin, Smith, & Beautrais, 2008). The majority of suicide attempt patients are discharged after medical stabilization and psychosocial evaluation, but carry a significant risk of recidivism (Larkin, Smith, & Beautrais, 2008). Similarly, ED patients who present with suicide ideation (without attempt) have risks of returning to the ED with further ideation or with suicide attempts which are as high as those who present with attempts (Larkin, Beautrais, Gibb, & Laing, 2008). In addition, a significant fraction of those who present to EDs for nonmental health reasons often have occult or silent suicide ideation (estimated at 8–12%) (Claassen & Larkin, 2005). The worldwide economic tsunami and sky-rocketing healthcare costs have ensured that mental health-related visits and presentations for suicidal behavior will continue to rise in the foreseeable future. The closure of psychiatric inpatient facilities, reductions in inpatient beds, moves to treat people in the community, and increased costs of general practitioner visits have coincided with – and likely account for – increased ED attendances by psychiatric and suicidal patients who previously might have been admitted or seen in primary care. The ED is now the default, de facto option for urgent and acute contact for suicidal patients within the health system – and in many countries the ED is the only access to 24/7 healthcare (Fields et al., 2001).