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Patient Health Questionnaire-9: A clinimetric analysis.
Cosci, Fiammetta; Christensen, Kaj Sparle; Ceccatelli, Sara; Patierno, Chiara; Carrozzino, Danilo.
Afiliação
  • Cosci F; Department of Health Sciences, University of Florence, Florence, Italy. International Lab of Clinical Measurements, University of Florence, Florence, Italy. Department of Psychiatry & Neuropsychology, Maastricht University, Maastricht, The Netherlands.
  • Christensen KS; Research Unit for General Practice and Section for General Medical Practice, Department of Public Health, Aarhus University, Aarhus, Denmark.
  • Ceccatelli S; Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
  • Patierno C; Department of Health Sciences, University of Florence, Florence, Italy.
  • Carrozzino D; Department of Psychology Renzo Canestrari, University of Bologna, Bologna, Italy.
Braz J Psychiatry ; 46: e20233449, 2024.
Article em En | MEDLINE | ID: mdl-38281157
ABSTRACT

OBJECTIVE:

The Patient Health Questionnaire-9 (PHQ-9) is a widely used self-report measure of depression whose psychometric properties were found to be merely acceptable. Insufficient attention has been devoted to its clinimetric validity, while its clinical utility is still debated, particularly for assessing depression severity. This is the first study to test the PHQ-9 construct validity and clinical utility based on clinimetric principles.

METHODS:

An online survey of 3,398 participants was conducted. Item response theory models (Rasch and Mokken analyses) were used to assess the PHQ-9 validity and determine its clinical utility.

RESULTS:

Fit to the Rasch model was achieved after adjusting the sample size. Items 2, 4, 6, and 9 over-discriminated, while items 1, 5, and 7 under-discriminated. Local dependency between items 2 and 6 was indicated. The PHQ-9 was not unidimensional. A Loevinger's coefficient of 0.49 was found, indicating an acceptable level of scalability.

CONCLUSION:

The PHQ-9 is an instrument with potential clinical utility as an overall index of depression, mainly for screening purposes. Substantial revision, particularly in the wording of over- and under-discriminating items, is needed.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Psicometria / Depressão / Questionário de Saúde do Paciente Aspecto: Patient_preference Limite: Adolescent / Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Braz J Psychiatry Assunto da revista: PSIQUIATRIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Holanda País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Psicometria / Depressão / Questionário de Saúde do Paciente Aspecto: Patient_preference Limite: Adolescent / Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Braz J Psychiatry Assunto da revista: PSIQUIATRIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Holanda País de publicação: Brasil