einstein (São Paulo). 01/Mar/2016;14(1):6-11.

Indicators of depression in elderly and different screening methods

Amanda Gilvani Cordeiro Matias, Marília de Andrade Fonsêca, Maria de Lourdes de Freitas Gomes, Marcos Antonio Almeida Matos

DOI: 10.1590/S1679-45082016AO3447

ABSTRACT
Objective
To determine the prevalence of depressive symptoms among elderly and correlate the agreement between the screening methods used.
Methods
A cross-section study of 137 elderly attending the Programa Vivendo a Terceira Idade [Living for the Elderly Program]. Depressive symptoms were screened by the Patient Health Questionnaire-9 and the 15-item Geriatric Depression Scale, by Yesavage. Cohen´s kappa analyzed the degree of agreement of these scales.
Results
The prevalence of depressive symptoms screened by the Patient Health Questionnaire-9 was 62.8% and, by the Geriatric Depression Scale, 52.6%. The Spearman correlation between the results of scales obtained rho=0.387, p<0.000. The Kappa reliability coefficient was 0.41 and significance level of p<0.001. The screening methods showed sensitivity of 80% and specificity of 44%.
Conclusion
Both scales showed moderate agreement and were useful for detecting a relevant prevalence of the target outcome of depression among the elderly.

Indicators of depression in elderly and different screening methods

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