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Τετάρτη 7 Φεβρουαρίου 2018

An empirical assessment of adjustment disorder as proposed for ICD-11 in a general population sample of Israel

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Publication date: March 2018
Source:Journal of Anxiety Disorders, Volume 54
Author(s): Louisa Lorenz, Philip Hyland, Andreas Maercker, Menachem Ben-Ezra
BackgroundA new diagnostic concept of Adjustment Disorder (AjD) was proposed for inclusion in the International Classification of Diseases, 11th version (ICD-11). However, the symptom structure of AjD is poorly understood. The aim of the present study was to investigate the dimensionality of AjD as a stress-response syndrome.MethodsA general population sample of the Israeli population (N = 1003) completed the Adjustment Disorder – New Module 20 and the WHO-5 Wellbeing Scale. We compared seven alternative models of AjD using confirmatory factor analysis (CFA). A latent profile analysis (LPA) was performed to determine if subtypes of AjD were present. The performance of the unidimensional and multidimensional models of AjD were evaluated using regression analyses.ResultsCFA results supported a unidimensional model of AjD. The LPA identified three quantitatively distinct classes (low, medium, and high) with no evidence of any subtypes of AjD. The criterion validity of AjD was superior when treated as unidimensional. AjD was associated with lower levels of psychological wellbeing (β = −.32, p < .001).ConclusionsOur results suggest that AjD is better conceptualised as a unidimensional construct. Future work should focus on a reduction of required symptoms in order to improve clinical utility and validity of the diagnosis.



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