Quick Identification of the Risk of Psychosis: The Italian Version of the Prodromal Questionnaire-Brief.

Autor:	Preti A; Center of Liaison Psychiatry and Psychosomatics, University Hospital, University of Cagliari, Cagliari, Italy.; Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy.; Genneruxi Medical Center, Cagliari, Italy., Raballo A; Department of Psychology, Psychopathology and Development Research, Norwegian University of Science and Technology (NTNU), Trondheim, Norway., Kotzalidis GD; NESMOS Department, Sapienza University, School of Medicine and Psychology, Sant'Andrea Hospital, Rome, Italy., Scanu R; Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy., Muratore T; Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy., Gabbrielli M; Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy., Tronci D; Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy., Masala C; Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy., Petretto DR; Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Cagliari, Italy., Carta MG; Center of Liaison Psychiatry and Psychosomatics, University Hospital, University of Cagliari, Cagliari, Italy.
Jazyk:	angličtina
Zdroj:	Clinical practice and epidemiology in mental health : CP & EMH [Clin Pract Epidemiol Ment Health] 2018 May 23; Vol. 14, pp. 120-131. Date of Electronic Publication: 2018 May 23 (Print Publication: 2018).
DOI:	10.2174/1745017901814010154
Abstrakt:	Background: Diagnosing people during the prodromal phase of an incipient psychosis can improve the chance of better outcome. In busy clinical settings, the ideal tool is a brief, easy-to-complete self-report questionnaire. Objective: To test the psychometric properties of the Italian version of one of the most used screening tools for the identification of the risk of psychosis, the Prodromal Questionnaire-Brief (PQ-B). Methods: Cross-sectional design. A convenience sample of college students was enrolled via snowball procedure (n=243; men: 45%). After understanding and signing the consent form, the participants received a booklet containing the following questionnaires: the 21-item Prodromal Questionnaire-Brief (PQ-B); the 12-item General Health Questionnaire (GHQ-12), and the 74-item Schizotypal Personality Questionnaire (SPQ). Receiver operating characteristic (ROC) analysis was used to assess the capacity of the PQ-B to identify individuals at risk of psychosis as independently defined based on the combination of GHQ-12 and SPQ thresholds. Results: The Italian version of the PQ-B revealed good internal consistency, test-retest reliability, and adequate convergent and divergent validity. The Youden method retrieved a cut-off = 7 for the PQ-B frequency score and a cut-off = 22 for the PQ-B distress score. Both PQ-B scores had a perfect (99%) negative predictive value. Conclusion: The PQ-B is a promising screening tool in two-stage protocols. The major advantage of the PQ-B is to exclude cases that are unlikely to be at risk of psychosis.
Databáze:	MEDLINE
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