The Diagnostic Accuracy of the Ascertain Dementia 8 Questionnaire for Detecting Cognitive Impairment in Primary Care in the Community, Clinics and Hospitals: A Systematic Review and Meta-Analysis
Family Practice
Chen, H. -H., Sun, F. -J., et al. (2018).
Family Practice, 35(3), 239-246.
This meta-analysis investigates the Ascertain Dementia 8 (AD8) questionnaire to detect cognitive decline in adults. Although speech-language pathologists do not diagnose dementia, findings from this review may be useful for identifying tools for detection of cognitive impairments in individuals.
No funding received
August 2005 to April 2017
Primary studies
7
<div>Findings indicated that the sensitivity (0.72, 0.91) of the Ascertain Dementia 8 (AD8) questionnaire was superior to the specificity (0.67, 0.78) in screening for cognitive impairment in primary care settings in the community, clinics, and hospitals. Results also suggested that false positive results may occur with the AD8 due to poorer specificity and positive likelihood ratio (2.52, 3.94), but false negative results were suggested to be less likely due to a higher negative likelihood ratio (0.17, 0.13). "Therefore, similar to all other screening tools, if the result is positive, a further diagnosis is necessary" (p. 245).</div>
