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Validación y utilidad de la encuesta PHQ-9 (Patient Health Questionnaire) en el diagnóstico de depresión en pacientes usuarios de atención primaria en Chile

2012; Volume: 50; Issue: 1 Linguagem: Inglês

10.4067/s0717-92272012000100002

0717-9227

Tomas Baader M, José Luis Molina F, Silvia Venezian B, Carmen Rojas C, Renata Farías S, Carlos Fierro-Freixenet, M. Backenstraß, Christoph Mundt,

Aging, Health, and Disability

Background: Depressive disorders (TD) is a set of prevalent diseases that require proper diagnosis and treatment.In Chile, the instruments of evaluation and diagnosis are scarce.As a way to address this diffi culty, the objective of this study was to validate the Spanish version of the self-reported Patient Health Questionarie (PHQ-9), the consulting population in primary care in Chile.The PHQ-9 to detect depressive symptoms as mild, moderate or severe, and has proven to be an effi cient diagnostic tool.Methods: 1327 patients evaluated in June 2005 from fi ve urban general practices of the Commune of Valdivia answered individually the PHQ-9.A subsample was compared with the Hamilton scale for depression, ICD-10 criteria for depression and XX version of the PHQ-9.Results: The PHQ-9 demonstrated a sensitivity of 92% and 89% specifi city in detecting depressive patients, when compared to the Hamilton-D scale.It presents a construct validity and predictive validity concurrent with the ICD-10 criteria for depression.Conclusions: The PHQ-9 showed a psychometric allowing clinical use in primary care patients in Chile.