Validity of the ICD-11 Personality Disorder Diagnoses
Research type
Research Study
Full title
Assessing the Validity of the ICD-11 Personality Disorder Diagnoses in Secure Forensic Patients: Considering Behavioural and Diagnostic Correlates
IRAS ID
338796
Contact name
Jane Ireland
Contact email
Sponsor organisation
University of Central Lancashire
Duration of Study in the UK
3 years, 2 months, 30 days
Research summary
The International Classification of Diseases Version 11 (ICD-11) has transitioned from the ICD-10 to classify personality disorders based on the severity of self, interpersonal, and psycho-social impairment. The severity of diagnosis ranges from personality difficulties to mild, moderate, or severe personality disorder. With the recent transition, there is a research gap regarding the applicability of the ICD-11 personality disorder diagnostic interview within a forensic population. This project aims to fill this deficit by investigating the validity of the ICD-11 personality disorder diagnoses among forensic patients within Ashworth High Secure Hospital. A secondary aim is to investigate the extent the diagnosis of severe or moderate personality disorder, according to the ICD-11, can predict whether a person will be aggressive towards themselves or others. Additionally, this study will explore how closely the ICD-11's diagnostic interview for personality disorder aligns with other assessments of problematic personality, such as clinical psychopathy. Patients authorized for participation by their responsible clinician will be invited. To address these aims, the ICD-11 personality disorder diagnoses will be compared to self-report assessments and collateral information. The assessments include the Personality Inventory for DSM-5 and ICD-11 – Brief Form Plus Modified, ICD-11 Personality Disorder Severity Scale, Positive Symptom Scale - Community Assessment of Psychic Experiences, Buss Perry Aggression Questionnaire, Measured Disordered Personality Functioning, Adult ADHD Self-Report Scale for DSM-5, and the Autism Spectrum Quotient test. The collateral information will consist of risk assessments such as the Historical Clinical Risk Management – 20, Structured Assessment of Protective Factors, and Psychopathy Checklist - Revised. Additionally, formal incident reports recorded by staff at Ashworth Hospital will be reviewed for instances of patient aggression to self and/or others.
REC name
South Central - Oxford A Research Ethics Committee
REC reference
24/SC/0252
Date of REC Opinion
9 Aug 2024
REC opinion
Further Information Favourable Opinion