Journal
REVISTA DE PSIQUIATRIA Y SALUD MENTAL
Volume 9, Issue 3, Pages 134-142Publisher
ELSEVIER DOYMA SL
DOI: 10.1016/j.rpsm.2016.02.002
Keywords
Suicidal ideation; Suicidal behaviour; Columbia-Suicide Severity Rating Scale; Psychometric properties; Assessment
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Objective: To examine the psychometric properties of a Spanish version of the C-SSRS(Sp-CSSRS). Method: Data are from a naturalistic, cross-sectional, multicentre, validation study, including467 psychiatric outpatients, 242 of whom had a history of suicide attempt. The study measures were: C-SSRS; the Hamilton Depression Rating Scale (HDRS); the Beck Suicide Intent Scale; the Medical Damage Scale. Results: Construct validity: Pearson coefficient between the C-SSRS severity (C-Sev) and intensity (C-Int) of ideation subscale scores was 0.44 (P < .000) for the total sample. Likewise, Pearson-coefficient between C-Sev score and HDRS item 3 was 0.56 (P < .000). For the sub- sample of patients with suicide attempt, significant Pearson correlations were found between the C-Sev and the Beck Suicide Intent Scale scores (r = 0.22; P =.001). Discriminant validity: Significantdifferences were found in C-Sev and C-Int scores between patients with and without suicide attempt (P < .000). The C-Sev score discriminated between patients based on HDRS item 3(P < .009). Sensitivity to change: Linear regression showed that a one-unit decrease in HDRS item 3 corresponded to a decrease of 5.08 units in the C-Sev score (P = .141). A one-unit change in HDRS item 3 corresponded to a change of 13.51 on the C-Int assessments (P = .007). Cronbach's alpha was 0.53 for C-Int. The principal component analysis identified 2 components that explain 55.66% of the total variance (C-Int). Conclusion: The data support that the Sp-C-SSRS is a reliable and valid instrument for assessing suicidal ideation and behaviour in daily clinical practice and research settings. (C) 2016 SEP y SEPB. Published by Elsevier Espana, S.L.U. All rights reserved.
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