E-ISSN : 2733-4538
Acquired capability for suicide refers to the ability to act on lethal self-injury. The aim of the study was to examine psychological factors differentiating suicide attempters from suicide ideators, with a particular focus on acquired capability of suicidality and temperament. In this cross-sectional study, a community sample of Korean adults completed self-report measures of acquired capability for suicide using the ACSS-FAD, GCSQ, and ACWRSS, impulsivity, and aggression, along with questions of lifetime history of suicidal behavior. Among the subfactors of acquired capability for suicide derived from three self-report measures, only perceived capability of the GCSQ and preparation of the ACWRSS differentiated suicide attempters from suicide ideators. The factors of fearlessness about death and pain tolerance from the ACSS-FAD and GCSQ did not predict suicide attempt among suicidal ideators. Of the temperamental factors, none was able to differentiate suicide attempters from ideators, while both suicide ideators and attempters reported higher levels of negative urgency, a tendency to act impulsively upon negative emotions, and physical aggression compared to healthy controls. The results of the study indicated that people who act on their suicidal desires have a higher level of self-perception of acquired capability of suicide, and they tend to engage in planning activities using mental rehearsal strategies. These findings highlight the need for considering one’s planning behavior and perceived capability for suicide in suicide risk assessment and follow-up.
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