People with deliberate self-poisoning and personality disorders are in increased risk for suicide. Intention and psychiatric features are important factors in a psychiatric evaluation and for planning aftercare.
Patients admitted to medical departments after deliberate self-poisoning were studied (n = 117). Patients with personality disorder according to (ICD-10, F.60-69) were compared to patients with affective disorders, substance use disorders, and unknown psychiatric diagnosis on Beck Suicide Intention Scale (SIS), Beck Suicide Ideation Scale (BSI), Beck Hopelessness Scale (BHS), and Beck Depression Inventory (BDI).
The mean suicide intention score (SIS) was significantly lower among patients with personality disorders compared with patients with other psychiatric diagnoses 10.2 (95% CI 8.1–12.4) vs. 14.6 (95% CI 12.7–16.4) (p = 0.040). The hopelessness scores (BHS) were significantly higher among patients with personality disorders 13.0 (95% CI 10.9–15.2) compared with patients with affective disorders 8.2 (95% CI 6.1–10.3) and substance use disorders 9.9 (95% CI 5.2–14.6) (p = 0.0014) and unknown psychiatric diagnoses 10.6 (95% CI 9.1–12.2). There were no significant differences between the groups on suicide ideation (BSI) and depression (BDI).
Although patients with personality disorders had lower suicide intention compared to patients with other psychiatric diagnoses, they reported significantly more hopelessness. This distinction is an important implication in the clinical assessment and planning of further treatment of DSP patients.
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