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Transdiagnostic psychiatry: a systematic review

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

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  • Paolo Fusar-Poli
  • Marco Solmi
  • Natascia Brondino
  • Cathy Davies
  • Chungil Chae
  • Pierluigi Politi
  • Stefan Borgwardt
  • Stephen M Lawrie
  • Josef Parnas
  • Philip McGuire
Vis graf over relationer

The usefulness of current psychiatric classification, which is based on ICD/DSM categorical diagnoses, remains questionable. A promising alternative has been put forward as the "transdiagnostic" approach. This is expected to cut across existing categorical diagnoses and go beyond them, to improve the way we classify and treat mental disorders. This systematic review explores whether self-defining transdiagnostic research meets such high expectations. A multi-step Web of Science literature search was performed according to an a priori protocol, to identify all studies that used the word "transdiagnostic" in their title, up to May 5, 2018. Empirical variables which indexed core characteristics were extracted, complemented by a bibliometric and conceptual analysis. A total of 111 studies were included. Most studies were investigating interventions, followed by cognition and psychological processes, and neuroscientific topics. Their samples ranged from 15 to 91,199 (median 148) participants, with a mean age from 10 to more than 60 (median 33) years. There were several methodological inconsistencies relating to the definition of the gold standard (DSM/ICD diagnoses), of the outcome measures and of the transdiagnostic approach. The quality of the studies was generally low and only a few findings were externally replicated. The majority of studies tested transdiagnostic features cutting across different diagnoses, and only a few tested new classification systems beyond the existing diagnoses. About one fifth of the studies were not transdiagnostic at all, because they investigated symptoms and not disorders, a single disorder, or because there was no diagnostic information. The bibliometric analysis revealed that transdiagnostic research largely restricted its focus to anxiety and depressive disorders. The conceptual analysis showed that transdiagnostic research is grounded more on rediscoveries than on true innovations, and that it is affected by some conceptual biases. To date, transdiagnostic approaches have not delivered a credible paradigm shift that can impact classification and clinical care. Practical "TRANSD"iagnostic recommendations are proposed here to guide future research in this field.

OriginalsprogEngelsk
TidsskriftWorld Psychiatry
Vol/bind18
Udgave nummer2
Sider (fra-til)192-207
Antal sider16
ISSN1723-8617
DOI
StatusUdgivet - jun. 2019

Bibliografisk note

© 2019 World Psychiatric Association.

ID: 58973259