The factor structure of major depression symptoms: a test of four competing models using the Patient Health Questionnaire-9.
Psychiatry Res
; 199(3): 169-73, 2012 Oct 30.
Article
em En
| MEDLINE
| ID: mdl-22698261
ABSTRACT
Little research has examined the underlying symptom structure of major depressive disorder (MDD) symptoms based on DSM-IV criteria. Our aim was to analyze the symptom structure of major depression, using the Patient Health Questionnaire-9 (PHQ-9). The PHQ-9 was administered to a sample of 2615 Army National Guard soldiers from Ohio. A one-factor model of depression and three separate two-factor models previously established in the literature were evaluated using confirmatory factor analysis. Results demonstrated greater support for the two-factor models of depression than for the one-factor model. The best fitting model was the two-factor model of somatic and non-somatic symptoms supported previously by Krause et al. (2010) and Richardson and Richards (2008). Implications for understanding the components and mechanisms of MDD are discussed.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Transtorno Depressivo Maior
/
Modelos Psicológicos
Tipo de estudo:
Diagnostic_studies
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Prognostic_studies
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Qualitative_research
Limite:
Adolescent
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Adult
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Female
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Humans
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Male
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Middle aged
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Psychiatry Res
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos