Key result
SADQ-10 correlates modestly with GDS-15, detecting post-stroke depression with ~70% sensitivity.
Cross-Sectional (n=65)
No
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OBJECTIVE: To determine the utility of an observer-based rating scale to detect depression in patients without aphasia. DESIGN: Correlation analysis between the Stroke Aphasia Depression Questionnaire, shortened version (SADQ-10) and a validated self-rating measure of depression, the Geriatric Depression Scale (GDS). The sensitivity and specificity of the SADQ-10 were also calculated. SETTING: Stroke rehabilitation unit. SUBJECTS: Sixty-five stroke patients without significant aphasia undergoing rehabilitation. INTERVENTIONS: All patients were assessed with the GDS-15 and the SADQ-10. RESULTS: The SADQ-10 at a cut-point of 14 out of 30 had a sensitivity of 70% and a specificity of 77% to detect depression. This measure demonstrated good internal consistency but showed only a modest correlation with the GDS-15 (r = 0.40, p < 0.001). CONCLUSION: In the population under study the SADQ-10 did not appear to be a valid measure of depression compared with the GDS and, therefore, may not be suitable for use in patients without significant aphasia.
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Leeds et al. (2004) conducted a cross-sectional in Post-stroke depression (n=65). Stroke Aphasia Depression Questionnaire, shortened version (SADQ-10) vs. Geriatric Depression Scale (GDS-15) was evaluated on Correlation with GDS-15 and diagnostic sensitivity/specificity for detecting depression (r = 0.40 (sensitivity 70%, specificity 77%), p=<0.001). The SADQ-10 showed only a modest correlation with the GDS-15, with 70% sensitivity and 77% specificity for detecting depression in non-aphasic stroke patients.
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