Validating the Geriatric Depression Scale with proxy-based data: A case-control psychological autopsy study in rural China.
J Affect Disord
; 241: 533-538, 2018 12 01.
Article
em En
| MEDLINE
| ID: mdl-30153636
ABSTRACT
BACKGROUND:
The Geriatric Depression Scale (GDS) has been widely used for late-life depression, but it lacks validation in psychological autopsy research. This study aimed to assess the validity and establish the optimal cut-off values of the GDS-30 and the GDS-15 with proxy-based data in rural China.METHODS:
We applied psychological autopsy to collect data from 242 consecutive suicide cases and 242 paired living community controls.RESULTS:
Subject-proxy concordance for the GDS-30 (ICCâ¯=â¯0.590) and the GDS-15 (ICCâ¯=â¯0.539) were fair in the living controls. Based on proxy-data, we found that the suicide cases had higher scores of depression than the living controls did; the values of Cronbach's alpha demonstrated good internal consistency of the GDS-30 and the GDS-15; the Spearman correlation analysis indicated that the GDS scores were correlated with hopelessness, loneliness, and quality of life. For suicide cases, the GDS-30 showed the highest Youden's index as 34.86% with a cut-off value at 22, when its sensitivity and specificity was 0.78 and 0.56, respectively; the score of 12 on the GDS-15 showed the highest Youden's index of 31.39%, and its sensitivity and specificity was 0.74 and 0.58, respectively.LIMITATIONS:
This study is limited to its generalizability to Chinese urban elderly with psychological autopsy method.CONCLUSIONS:
The GDS-30 and the GDS-15 were both valid tools for measuring the severity of depressive symptoms rather than screening for major depression in psychological autopsy research in rural China. The GDS-15 can be considered as a good substitute for the GDS-30.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Escalas de Graduação Psiquiátrica
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Avaliação Geriátrica
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Transtorno Depressivo Maior
Tipo de estudo:
Diagnostic_studies
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Observational_studies
Limite:
Aged
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Aged80
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Female
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Humans
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Male
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article