Short Personality and Life Event scale for detection of suicide attempters Articles uri icon

authors

  • ARTIEDA URRUTIA, PAULA
  • DELGADO GOMEZ, DAVID
  • Ruiz Hernandez, Diego
  • GARCÍA VEGA, JUAN MANUEL
  • BERENGUER, NURIA
  • Oquendo, Maria A.
  • Blasco Fontecilla, Hilario

publication date

  • November 2015

start page

  • 199

end page

  • 206

issue

  • 4

volume

  • 8

international standard serial number (ISSN)

  • 1888-9891

electronic international standard serial number (EISSN)

  • 1989-4600

abstract

  • Objective: To develop a brief and reliable psychometric scale to identify individuals at risk for suicidal behaviour. Method: Design: Case-control study. Sample and setting: 182 individuals (61 suicide attempters, 57 psychiatric controls, and 64 psychiatrically healthy controls) aged 18 or older, admitted to the Emergency Department at Puerta de Hierro University Hospital in Madrid, Spain. Measures: All participants completed a form including their socio-demographic and clinical characteristics, and the Personality and Life Events scale (27 items). To assess Axis I diagnoses, all psychiatric patients (including suicide attempters) were administered the Mini International Neuropsychiatric Interview. Statistical analysis: Descriptive statistics were computed for the socio-demographic factors. Additionally, chi(2) independence tests were applied to evaluate differences in socio-demographic and clinical variables, and the Personality and Life Events scale between groups. A stepwise linear regression with backward variable selection was conducted to build the Short Personality Life Event (S-PLE) scale. In order to evaluate the accuracy, a ROC analysis was conducted. The internal reliability was assessed using Cronbach's alpha, and the external reliability was evaluated using a test-retest procedure. Results: The S-PLE scale, composed of just 6 items, showed good performance in discriminating between medical controls, psychiatric controls and suicide attempters in an independent sample. For instance, the S-PLE scale discriminated between past suicide and past non-suicide attempters with sensitivity of 80% and specificity of 75%. The area under the ROC curve was 88%. A factor analysis extracted only one factor, revealing a single dimension of the S-PLE scale. Furthermore, the S-PLE scale provides values of internal and external reliability between poor (test-retest: 0.55) and acceptable (Cronbach's a: 0.65) ranges. Administration time is about one minute.

keywords

  • suicide attempters; personality; life events; emptiness; psychiatric-patients; risk-factors; behavior; prediction; prevention; depression; intent