1. Development and validation of the geriatric depression inventory in Chinese culture.
- Author
-
Xie Z, Lv X, Hu Y, Ma W, Xie H, Lin K, Yu X, and Wang H
- Subjects
- Aged, Asian People, Case-Control Studies, China, Delphi Technique, Female, Humans, Male, Middle Aged, ROC Curve, Reproducibility of Results, Sensitivity and Specificity, Depression diagnosis, Depressive Disorder diagnosis, Geriatric Assessment methods, Psychiatric Status Rating Scales standards
- Abstract
Background: Depression among older adults is under-recognized either in the community or in general hospitals in Chinese culture. This study aimed to develop a culturally appropriate screening instrument for late-life depression in the non-psychiatric settings and to test its reliability and validity for a diagnosis of depression., Methods: Using a Delphi method, we developed a geriatric depression inventory (GDI), consisting of 12 core symptoms of depressive disorder in old age. We investigated its reliability and validity on 89 patients with late-life depression and 249 non-depression controls. Both self-report (GDI-SR) and physician-interview (GDI-RI) versions were assessed., Results: Cronbach's α coefficient was 0.843 for GDI-SR and 0.880 for GDI-RI. Both GDI-SR and GDI-RI showed good concurrent validity with the 15-item Geriatric Depression Scale (GDS-15) (GDI-SR: r = 0.750, p < 0.001; GDI-RI: r = 0.733, p < 0.001). The area under the curve of the receiver operating characteristic (ROC) was 0.938 for GDI-SR and 0.961 for GDI-RI, suggesting good to excellent discrimination of depression versus non-depression. Using a cut-off of three items endorsed, sensitivity and specificity were 92.1% and 81.9% for GDI-SR, and 93.3% and 87.1% for GDI-RI., Conclusions: The GDI, either based on self-report or rater interview, is a reliable and valid instrument for the detection of depression among older adults in non-psychiatric medical settings in Chinese culture.
- Published
- 2015
- Full Text
- View/download PDF