RESUMO
La escala para Depresión Geriátrica, de 5 y 15 ítems (GDS-5 y GDS-15), cuantifica síntomas depresivos en adultos mayores. Sin embargo, no se ha explorado el comportamiento psicométrico de la versión de cinco ítems en población colombiana. El presente trabajo se propuso estudiar la consistencia interna, la confiabilidad de constructo y la estructura factorial de la GDS-15 y de la GDS-5. Participaron en la investigación 105 adultos mayores colombianos y se calcularon: consistencia interna, confiabilidad de constructo y estructura factorial. La GDS-15 presentó consistencia interna de 0.78, confiabilidad de constructo de 0.87 y estructura bidimensional. La GDS -5 mostró consistencia interna de 0.73, confiabilidad de constructo de 0.83 y estructura unidimensional. En conclusión la GDS-5 muestra mejor comportamiento psicométrico que la GDS-15. Sin embargo, se recomienda desarrollar el diseño de una escala más confiable en esta población.
The Geriatric Depression Scale (GDS), 5 and 15-items version, are useful for identify depressive symptoms among elder people. However, psychometric properties of a version of five items has not explored among colombian elders. The aim of this paper was to study the internal consistency, the factor structure and the construct reliability of the GDS-15 and GDS-5. A total of 105 colombian people over 65 year-old participated in this investigation. The internal consistency, the construct reliability and the exploratory factor analysis were computed. The GDS-15 showed internal consistency of 0.78, the construct reliability of 0.87 and two-dimensional structure. The GDS-5 exhibited internal consistency of 0.73, construct reliability of 0.83 and one-dimensional structure. In conclusion the GDS-5 shows better psychometric properties than the GDS-15. However, it is recommended to develop the design a new and more reliability scale.
RESUMO
OBJECTIVES:The purpose of this study is to evaluate the diagnostic validity of the three published short Geriatric Depression Scales and to identify a valid and reliable alternative to the Korean version of the Geriatric Depression Scale (GDS-K) and short form Geriatric Depression Scales (SGDS-K). METHODS:All subjects were registered elderly psychiatric patients who first visited the Geriatric Psychiatry Clinic of Seoul National University Hospital in Seoul between April 1996 and May 1999. The GDS-K, SGDS-K, Hoyl GDS-5, D'Ath GDS-4, van Marwijk GDS-4 were administered. Receiver operating characteristics (ROC) curve analysis performed to investigate the diagnostic validity of the Hoyl GDS-5, D'Ath GDS-4, and van Marwijk GDS-4. RESULTS:The best trade-off between sensitivity and specificity was achieved with a Hoyl GDS-5 score of 3 (sensitivity:0.7258, specificity:0.7717), a D'Ath GDS-4 score of 3 (sensitivity:0.5968, specificity:0.7391), and a van Marwijk GDS-4 score of 3 (sensitivity:0.6613, specificity:0.7391). The area under the ROC curves of each diagnostic tool were calculated into the Hoyl GDS-5 of 0.8198, the D'Ath GDS-4 of 0.7525, and the van Marwijk GDS-4 of 0.7528. CONCLUSION:The Hoyl GDS-5 may be utilized in screening for major depression among the elderly psychiatric patients in Korea.