Screening for psychosis risk among help-seeking adolescents: Application of the Italian version of the 16-item prodromal questionnaire (iPQ-16) in child and adolescent neuropsychiatry services.
Early Interv Psychiatry
; 13(4): 752-760, 2019 08.
Article
em En
| MEDLINE
| ID: mdl-29537131
ABSTRACT
AIM:
The 16-item Prodromal Questionnaire (PQ-16) is a versatile screen tool for routine screening of at-risk individuals. We wished to evaluate the psychometric properties of the Italian version of the PQ-16 (iPQ-16) in a sample of 72 help-seeking adolescents (age range 13-17 years) referred to child and adolescent neuropsychiatry services for diagnostic assessment.METHODS:
Participants who completed iPQ-16 were subsequently interviewed with the Comprehensive Assessment of At-Risk Mental States (CAARMS) to confirm the psychosis high risk state. We then examined the diagnostic accuracy (sensitivity, specificity, positive and negative predictive values [PPV e NPV]) and concurrent validity between iPQ-16 and CAARMS using Cronbach's alpha and Cohen's kappa. We also tested the validity of the adopted iPQ-16 cut-offs through Receiver Operating Characteristic (ROC) curves plotted against CAARMS diagnoses and the 1-year predictive validity of the iPQ-16.RESULTS:
Overall, the psychometric properties of the iPQ-16 were satisfactory. The iPQ-16 showed high internal consistency (Cronbach's alpha = .827) and acceptable diagnostic accuracy (77% sensitivity, 72% PPV) and concurrent validity (Cohen's k = 0.309). ROC analyses pointed to iPQ-16 total distress score of ≥10 as best cut-off.CONCLUSION:
The iPQ-16 is a reliable and valid instrument for routine screening of at-risk individuals in Italian neuropsychiatry services.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transtornos Psicóticos
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Valor Preditivo dos Testes
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Inquéritos e Questionários
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Neuropsiquiatria
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Sintomas Prodrômicos
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Serviços de Saúde Mental
Tipo de estudo:
Diagnostic_studies
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Etiology_studies
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Prognostic_studies
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Risk_factors_studies
/
Screening_studies
Limite:
Adolescent
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Child
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Female
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Humans
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Male
País/Região como assunto:
Europa
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article