1. Preliminary studies of the ICD-11 classification of personality disorder in practice.
- Author
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Tyrer P, Crawford M, Sanatinia R, Tyrer H, Cooper S, Muller-Pollard C, Christodoulou P, Zauter-Tutt M, Miloseska-Reid K, Loebenberg G, Guo B, Yang M, Wang D, and Weich S
- Subjects
- Adolescent, Adult, Aged, Diagnostic and Statistical Manual of Mental Disorders, Female, History, Ancient, Humans, Male, Middle Aged, Personality Disorders classification, Prevalence, Prospective Studies, Retrospective Studies, Young Adult, Anxiety Disorders epidemiology, Depressive Disorder epidemiology, International Classification of Diseases standards, Personality Disorders diagnosis, Personality Disorders epidemiology
- Abstract
Objective: This study aims to compare ICD-10 and putative ICD-11 classifications of personality disorder in different clinical populations., Design: Prospective recording of ICD-10 and ICD-11 personality disorder classifications was carried out in (1) an anxious medical population, (2) an acute psychiatric in-patient population and (3) a retrospective recording of a mixed anxiety depression cohort in which all baseline data were scored from baseline information using the ICD-11 classification and compared with the original ICD-10 assessments., Method: Comparison of ICD-10 and ICD-11 prevalence of personality disorder in each population was carried out., Results: Data from 722 patients were recorded. Using the ICD-10 criteria, the prevalence of generic personality disorder was 33.8% compared with 40.4% using the ICD-11 ones (χ2 = 6.7; P < 0.01), with 103 (14.3%) discordant assessments. Using the severity definitions in ICD-11, 34.3% of patients had personality difficulty. Severity level varied greatly by population; severe personality disorder was five times more common in the inpatient group. The four domain traits originally denoted as qualifying severity in ICD-11, negative affective, dissocial, anankastic and detached, were linked to anxious, borderline, dissocial, anankastic and schizoid personality disorders in ICD-10. Many patients had pathology in two or more domains., Conclusions: The ICD-11 classification of personality disorder yields somewhat higher levels of personality dysfunction than ICD-10, possibly because the age range for the onset of diagnosis is now flexible. The range of severity levels make the classification more useful than ICD-10 in clinical practice as it identifies the greater pathology necessary for intervention., (Copyright © 2014 John Wiley & Sons, Ltd.)
- Published
- 2014
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