title: The German version of the self-injurious thoughts and behaviors interview (SITBI-G): a tool to assess non-suicidal self-injury and suicidal behavior disorder.
abstract: BACKGROUND
  Self-injurious thoughts and behaviors (SITBs) are common in adolescents. While there is no standardized interview in German to assess SITBs to date, the Self-Injurious Thoughts and Behaviors Interview (SITBI) is widely used in English-speaking countries. However, the SITBI has not been validated for the assessment of the recently issued DSM-5 Section 3 diagnoses of nonsuicidal self-injury (NSSI) and suicidal behavior disorder (SBD) yet. In the present study the psychometric properties of the German version of the SITBI (SITBI-G) were assessed. We also evaluated whether SITBI-G is a reliable and valid instrument to establish diagnoses of NSSI and SBD.
  
  
  METHODS
  A clinical adolescent sample (N = 111, f/m = 73/38, age range = 12-19 years) was recruited from the inpatient units of three departments of child and adolescent psychiatry in Germany. All participating patients were interviewed by using the SITBI-G, and DSM-5 criteria of NSSI and SBD were operationalized from the SITBI-G data. Additionally, participants were given the Self-Harm Behavior Questionnaire (SHBQ), and SITBI-G was retested in a subsample.
  
  
  RESULTS
  The SITBI-G shows moderate to good test-retest reliability, a very good interrater reliability, and a good construct validity. The results demonstrate that diagnoses of NSSI and SBD can be established using the SITBI-G, achieving moderate to good test-retest reliabilities and very good to perfect interrater reliabilities.
  
  
  CONCLUSIONS
  Overall, the good psychometric properties of SITBI-G are comparable to the original version of the interview. Therefore, SITBI-G seems to be highly appropriate to assess SITBs, including the new DSM-5 Section 3 diagnoses NSSI and SBD in research and clinical contexts.
authors.affiliation: Section for Disorders of Personality Development, Clinic of Child and Adolescent Psychiatry, Centre of Psychosocial Medicine, University of Heidelberg, Blumenstrasse 8, Heidelberg 69115, Germany. Gloria.Fischer@med.uni-heidelberg.de.
authors.forename: Gloria
authors.initials: G
authors.lastname: Fischer
authors.forename: Nina
authors.initials: N
authors.lastname: Ameis
authors.forename: Peter
authors.initials: P
authors.lastname: Parzer
authors.forename: Paul L
authors.initials: PL
authors.lastname: Plener
authors.forename: Rebecca
authors.initials: R
authors.lastname: Groschwitz
authors.forename: Eva
authors.initials: E
authors.lastname: Vonderlin
authors.forename: Michael
authors.initials: M
authors.lastname: Kölch
authors.forename: Romuald
authors.initials: R
authors.lastname: Brunner
authors.forename: Michael
authors.initials: M
authors.lastname: Kaess
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D005858:Germany; D006801:Humans; D007297:Inpatients; D008297:Male; D011594:Psychometrics; D015203:Reproducibility of Results; D016728:Self-Injurious Behavior / Q000175:diagnosis* / Q000523:psychology; D059020:Suicidal Ideation; D013406:Suicide, Attempted / Q000523:psychology / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires; D014177:Translations; D055815:Young Adult