A feasibility study of the transdiagnostic self-injury interview

TY - JOUR

T1 - A feasibility study of the transdiagnostic self-injury interview

AU - Kjær, Jesper Nørgaard

AU - Holm, Tine

AU - Ellegaard, Trine

AU - Madsen, Sissel

AU - Lorentzen, Eva

AU - Christensen, Ane Bjerg

AU - Bliksted, Vibeke

AU - Mors, Ole

AU - Dolmer, Signe

PY - 2023/8

Y1 - 2023/8

N2 - Objectives: The Transdiagnostic Self-injury Interview (TSI) is a new measure that assesses the onset, frequency, methods, and severity of non-suicidal self-injury. The aims were to demonstrate the feasibility of a TSI validation study, and to investigate TSI’s criterion validity, clinical correlates, and interrater reliability. Materials and methods: Recruiting sites were psychiatric in- and outpatient units. Feasibility targets included number of participants completing the study, TSI completion time, total participation time, participants experiencing exacerbation of symptoms, along with other targets. Criterion validity was evaluated using the Deliberate Self-Harm Inventory (DSHI). Clinical correlates were examined with the Columbia-Suicide Severity Rating Scale (C-SSRS), the Personal and Social Performance Scale, the Affective Lability Scale-18, and the Brief Trauma Questionnaire. Interrater reliability was evaluated with video recordings and written material. Results: Fifty participants were included. The majority were women (76%) and had a mean age of 31.3 years (SD: 10.4). Schizophrenia (44%) and schizoaffective disorder (18%) were the most prevalent diagnoses. TSI took an average 9.3 min to complete and the total participation time was on average less than one hour. One participant experienced an exacerbation of self-injury ideation (without the need of intervention). A significant correlation was found between TSI and DSHI (r: 0.94, p-value: < 0.001). TSI was correlated to C-SSRS ideation intensity and ideation frequency but not suicidal attempts. TSI was not significantly correlated to other measures. Interrater reliabilities were statistically significant. Conclusions: The results support the feasibility of a TSI validation study, which is needed to validate TSI in different settings and across diagnoses.

AB - Objectives: The Transdiagnostic Self-injury Interview (TSI) is a new measure that assesses the onset, frequency, methods, and severity of non-suicidal self-injury. The aims were to demonstrate the feasibility of a TSI validation study, and to investigate TSI’s criterion validity, clinical correlates, and interrater reliability. Materials and methods: Recruiting sites were psychiatric in- and outpatient units. Feasibility targets included number of participants completing the study, TSI completion time, total participation time, participants experiencing exacerbation of symptoms, along with other targets. Criterion validity was evaluated using the Deliberate Self-Harm Inventory (DSHI). Clinical correlates were examined with the Columbia-Suicide Severity Rating Scale (C-SSRS), the Personal and Social Performance Scale, the Affective Lability Scale-18, and the Brief Trauma Questionnaire. Interrater reliability was evaluated with video recordings and written material. Results: Fifty participants were included. The majority were women (76%) and had a mean age of 31.3 years (SD: 10.4). Schizophrenia (44%) and schizoaffective disorder (18%) were the most prevalent diagnoses. TSI took an average 9.3 min to complete and the total participation time was on average less than one hour. One participant experienced an exacerbation of self-injury ideation (without the need of intervention). A significant correlation was found between TSI and DSHI (r: 0.94, p-value: < 0.001). TSI was correlated to C-SSRS ideation intensity and ideation frequency but not suicidal attempts. TSI was not significantly correlated to other measures. Interrater reliabilities were statistically significant. Conclusions: The results support the feasibility of a TSI validation study, which is needed to validate TSI in different settings and across diagnoses.

KW - Non-suicidal self-injury

KW - psychiatry

KW - psychometrics

KW - risk behavior

KW - self-injurious behavior

KW - Reproducibility of Results

KW - Humans

KW - Suicide, Attempted/psychology

KW - Male

KW - Suicidal Ideation

KW - Self-Injurious Behavior/diagnosis

KW - Feasibility Studies

KW - Adult

KW - Female

KW - Surveys and Questionnaires

UR - http://www.scopus.com/inward/record.url?scp=85152037190&partnerID=8YFLogxK

U2 - 10.1080/08039488.2023.2192212

DO - 10.1080/08039488.2023.2192212

M3 - Journal article

C2 - 36988197

SN - 0803-9496

VL - 77

SP - 1

EP - 10

JO - Nordic Journal of Psychiatry

JF - Nordic Journal of Psychiatry

IS - 6

ER -