Measurement of depression in mexican patients with rheumatoid arthritis: Validity of the beck depression inventory

Abstract

OBJECTIVE: To validate a Spanish version of the Beck Depression Inventory (BDI) in Mexican patients with rheumatoid arthritis (RA). METHODS: Thirty-five patients with RA seen in our outpatient clinic were included. A semistructured psychiatric interview was applied, and the following instruments were administered: the BDI, the Hospital Anxiety and Depression Scale (HAD), and the Health Assessment Questionnaire Disability Index. Diagnostic properties of the BDI for both full-length and smaller versions taking out somatic items were compared against a gold standard. The gold standard for comparison was the diagnosis of depression according to the Diagnostic and Statistical Manual of Mental Disorders, Third Edition, Revised Criteria. RESULTS: Thirty-seven percent of RA patients had a diagnosis related to depression, most of which were major depression or dysthymia. The original BDI showed a high sensitivity (92%) and a high correlation with the HAD (r = 0.83). Exclusion of somatic items in modified versions of the BDI had a similar performance. CONCLUSIONS: The original BDI is a suitable instrument to detect depression in Mexican RA patients. Nevertheless, shorter versions without some of the somatic items also show an adequate performance.

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