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    European journal of psychotraumatology. 2022 Aug 1. doi: 10.1080/20008066.2022.2105580. pii: 2105580. pmc: PMC9344962
    The child and Adolescent Trauma Screen 2 (CATS-2) - validation of an instrument to measure DSM-5 and ICD-11 PTSD and complex PTSD in children and adolescents.
    Sachser C1,  Berliner L2,  Risch E3,  Rosner R4,  Birkeland MS5,  Eilers R6,  Hafstad GS7,  Pfeiffer E8,  Plener PL9,  Jensen TK10
    Author information
    1Department of Child and Adolescent Psychiatry/Psychotherapy, Ulm University, Ulm, Germany.
    2Harborview Center for Sexual Assault and Traumatic Stress, University of Washington, Seattle, WA, USA.
    3Center on Child Abuse and Neglect, University of Oklahoma Health Sciences Center, Oklahoma City, OH, USA.
    4Department of Psychology, Catholic University of Eichstätt-Ingolstadt, Eichstätt, Germany.
    5Norwegian Center for Violence and Traumatic Stress Studies, Oslo, Norway.
    6Department of Psychology, Catholic University of Eichstätt-Ingolstadt, Eichstätt, Germany.
    7Norwegian Center for Violence and Traumatic Stress Studies, Oslo, Norway.
    8Department of Child and Adolescent Psychiatry/Psychotherapy, Ulm University, Ulm, Germany.
    9Department of Child and Adolescent Psychiatry/Psychotherapy, Ulm University, Ulm, Germany.
    10Norwegian Center for Violence and Traumatic Stress Studies, Oslo, Norway.
    Abstract

    BACKGROUND: The study examined the psychometric properties of the Child and Adolescent Trauma Screen 2 (CATS-2) as a measure of posttraumatic stress disorder (PTSD) according to DSM-5 and (Complex) PTSD following the ICD-11 criteria in children and adolescents (7-17 years).

    METHODS: Psychometric properties were investigated in an international sample of traumatized children and adolescents ( = 283) and their caregivers ( = 255). We examined the internal consistency (α), convergent and discriminant validity, the factor structure of the CATS-2 total scores, latent classes of PTSD/Complex PTSD (CPTSD) discrimination, as well as the diagnostic utility using ROC-curves.

    RESULTS: The DSM-5 total score (self: α = .89; caregiver: α = .91), the ICD-11 PTSD total score (self: α = .67; caregiver: α = .79) and the ICD-11 CPTSD total score (self: α = .83; caregiver: α = .87) have proven acceptable to excellent reliability. The latent structure of the 12-item ICD-11 PTSD/CPTSD construct was consistent with prior findings. Latent profile analyses revealed that ICD-11 CPTSD was empirically distinguishable from ICD-11 PTSD using the CATS-2. ROC-analysis using the CAPS-CA-5 as outcome revealed that CATS-2 DSM-5 PTSD scores of ≥21 (screening) to ≥25 (diagnostic) were optimally efficient for detecting probable DSM-5 PTSD diagnosis. For the ICD-11 PTSD scale scores of ≥7 (screening) to ≥9 (diagnostic) were optimally efficient for detecting probable DSM-5 PTSD diagnosis.

    CONCLUSIONS: The CATS-2 is a brief, reliable and valid measure of DSM-5 PTSD, ICD-11 PTSD and CPTSD symptomatology in traumatized children and adolescents, allowing crosswalk between diagnostic systems using one measure.

    HIGHLIGHTS: The CATS-2 screens for potentially traumatic events (PTEs) and PTSD symptoms.The CATS-2 captures DSM-5 and ICD-11 criteria for PTSD and CPTSD and enables clinicians and researchers to crosswalk between both diagnostic systems.International validation has proven good psychometric properties and presents cut-off scoresThe CATS-2 is a license-free instrument and is freely accessible.


    © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

    KEYWORDS: DSM-5, ICD-11, PTSD, Trauma, adolescents, assessment, children, psychometrics

    Publikations ID: 35928521
    Quelle: öffnen
     
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