Rethinking Suicide Risk With a New Generation of Suicide Theories.

Background: Suicide is a global concern to nurses and other health-care providers. However, deaths by suicide are only part of the spectrum of suicide, as suicidal thinking and behaviors may precede a suicide attempt. Theoretical models are used infrequently in research to explain how the individual progresses from suicidal ideation to a suicide attempt. Thus, there is a critical need to advance the study of suicide with useful theoretical models to describe and explain processes whereby suicidal thoughts transition to attempts and to suicide.

Purpose: This article provides a conceptual discussion and scoping review comparing historical and contemporary ideation-to-action theories of suicide.

Method: Systematic reviews and meta-analyses from three databases (CINAHL, JSTOR, and PsychINFO) were reviewed to find literature describing suicide theories.

Results: Historically, theory applications have limited capacity to differentiate between those individuals with suicidal ideations and those who attempt suicide. Newer theories, grounded in the ideation-to-action framework, propose distinct processes explaining what moves an individual from suicidal ideations toward suicidal behaviors.

Implications for practice: The ideation-to-action theories can guide health-care providers' assessment of at-risk individuals beyond merely asking about suicidal thinking.

Conclusion: The new generation of suicide theories suggest that suicidal ideations are only one component of risk. The common factor in ideation-to-action theories that distinguishes ideators from attempters is the acquired capability for suicide.