The Ottawa Self-Injury Inventory: Evaluation of an assessment measure of nonsuicidal self-injury in an inpatient sample of adolescents

Abstract

BackgroundThe Ottawa Self-Injury Inventory (OSI) is a self-report measure that offers a comprehensive assessment of nonsuicidal self-injury (NSSI), including measurement of its functions and addictive features. In a preliminary investigation of self injuring college students who completed the OSI, exploratory analysis revealed four function factors (Internal Emotion Regulation, Social Influence, External Emotion Regulation and Sensation Seeking) and a single Addictive Features factor. Rates of NSSI are particularly high in inpatient psychiatry youth. The OSI can assistin both standardizing assessment regarding functions and potential addictive features and aid case formulation leading to informed treatment planning. This report will describe a confirmatory factor analysis (CFA) of the OSI on youth hospitalized in a psychiatric unit in southwestern Ontario.MethodsDemographic and self-report data were collected from all youth consecutively admitted to an adolescent in-patient unit who provided consent or assent.ResultsThe mean age of the sample was 15.71 years (SD = 1.5) and 76 (81 %) were female. The CFA proved the same four function factors relevant, as in the previous study on college students (χ2(183) = 231.98, p = .008; χ2/df = 1.27; CFI = .91; RMSEA = .05). The model yielded significant correlations between factors (rs = .44-.90, p < .001). Higher NSSI frequency was related to higher scores on each function factor (rs = .24-.29, p < .05), except the External Emotion Regulation factor (r = .11, p > .05). The factor structure of the Addictive Features function was also confirmed (χ2(14) = 21.96, p > .05; χ2/df = 1.57; CFI = .96; RMSEA = .08). All the items had significant path estimates (.52 to .80). Cronbach’s alpha for the Addictive Features scale was .84 with a mean score of 16.22 (SD = 6.90). Higher Addictive Features scores were related to more frequent NSSI (r = .48, p < .001).ConclusionsResults show further support for the OSI as a valid and reliable assessment tool in adolescents, in this case in a clinical setting, where results can inform case conceptualization and treatment planning.Electronic supplementary materialThe online version of this article (doi:10.1186/s13034-015-0056-5) contains supplementary material, which is available to authorized users.

Instrumentos de evaluación de la autolesión no suicida en adolescentes 1990-2016: una revisión sistemática

“…Table 1 shows the characteristics of the studies selected for evaluation. Of these 18 studies, 11 were instruments for evaluate NSSI in adolescents: the Self-Injurious Thoughts and Behaviors Interview (SITBI) 22 with one adaptation 23 ; the Self-Harm Behavior Questionnaire (SHBQ) 24 ; the Functional Assessment of Self-Mutila-tion (FASM) 6 with three adaptations [25][26][27] ; the Self-Injury Motivation Scale, Adolescent version (SIMS-A) 28 ; the Alexian Brothers Assessment of Self-Injury (ABASI) 29 ; the Alexian Brothers Urge to Self-Injure Scale (ABUSI) 30 , four adaptations of the instrument Ottawa Self-Injury Inventory (OSI) [31][32][33][34] ; the Risk-Taking and Self-Harm Inventory for Adolescents (RTSHIA) 35 ; the Repetitive Non-Suicidal Self-Injury Questionnaire (R-NS-SI-Q) 36 ; the 6-item measure of Prinstein 37 ; and the Impulse, Self-harm, and Suicide Ideation Questionnaire for Adolescents (ISSIQ-A) 38 . With its publication in 2007, the SITBI 22 became the first instrument intended to measure NSSI among adolescents.…”

“…No instruments created for or adapted to Latin America were identified, despite evidence that NSSI is a common phenomenon in these populations [44][45][46][47] . Eleven instruments were created or adapted in the United States; only the FASM 6,[25][26][27] , the SITBI 22,23 , and the OSI [31][32][33][34] were adapted for application among the adolescents of several countries to allow for international comparisons 31 . Therefore, it is necessary to make progress toward culturally adapting the instruments with the best psychometric properties for several regions of the world.…”

“…Therefore, the evidence was considered as insufficient. In the case of the RTSHIA 34 , reliability was evaluated using Pearson's r coefficient, which is not an incorrect procedure 51 . In the case of the SITBI-G 23 , inter-rater reliability was evaluated by agreement; although this method delivers excellent Kappa coefficients, it is not possible to evaluate it using standardized criteria.…”

Self-harm - an overview of the tools used to assess non-suicidal self-harming behaviors

“…DSHI has been used in many studies, among others: "Risk factors for deliberate self-harm among female students: The role and interaction of childhood maltreatment, emotional inexpressivity, and affect intensity/ reactivity" [47],"Targeting emotion dysregulation in the treatment of self-injury" [48], "The role of emotional respond- The self-report questionnaire was used in many studies, e.g. The Ottawa Self-Injury Inventory: Evaluation of an assessment measure of non-suicidal self-injury in an inpatient sample of adolescents [52] and Psychometric…”

“…in., np. w The Ottawa Self-Injury Inventory: Evaluation of an assessment measure of nonsuicidal selfinjury in an inpatient sample of adolescents [52] oraz w Psychometric Properties of the Functions and Addictive Features Scales of the Ottawa Self-Injury Inventory: A Preliminary Investigation Using a University Sample [53].…”