Predictive Validity of the Columbia-Suicide Severity Rating Scale for Short-Term Suicidal Behavior: A Danish Study of Adolescents at a High Risk of Suicide

Paul Maurice Conway, Annette Erlangsen, Thomas William Teasdale, Ida Skytte Jakobsen, Kim Juul Larsen

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Objectives: Using the Columbia-Suicide Severity Rating Scale (C-SSRS), we examined the predictive and incremental predictive validity of past-month suicidal behavior and ideation for 2 short-term suicidal behavior among adolescents at a high risk of suicide. Methods: The study was conducted in 2014 on a sample of 85 adolescents (90.6% females) who participated at follow-up (85.9%) out of the 99 (49.7%) baseline respondents. All adolescents were recruited from a specialized suicide-prevention clinic in Denmark. Through multivariate logistic regression analyses, we examined whether baseline suicidal behavior predicted subsequent suicidal behavior (actual attempts and suicidal behavior of any type, including preparatory acts, aborted, interrupted
and actual attempts; mean follow-up of 80.8 days, SD = 52.4). Furthermore, we examined whether suicidal ideation severity and intensity incrementally predicted suicidal behavior at follow-up over and above suicidal behavior at baseline. Results: Actual suicide attempts at baseline strongly
predicted suicide attempts at follow-up. Baseline suicidal ideation severity and intensity did not significantly predict future actual attempts over and above baseline attempts. The suicidal ideation intensity items deterrents and duration were significant predictors of subsequent actual attempts
after adjustment for baseline suicide attempts and suicidal behavior of any type, respectively.
Suicidal ideation severity and intensity, and the intensity items frequency, duration and deterrents, all significantly predicted any type of suicidal behavior at follow-up, also after adjusting for baseline suicidal behavior. Conclusion: The present study points to an incremental predictive validity of the C-SSRS suicidal ideation scales for short-term suicidal behavior of any type among
high-risk adolescents.
Keywords: adolescents, C-SSRS, suicidal behavior, suicidal ideation intensity, suicidal ideation severity
Original languageEnglish
JournalArchives of Suicide Research
Number of pages27
Publication statusPublished - 2016

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