期刊
INTERNATIONAL PSYCHOGERIATRICS
卷 24, 期 1, 页码 28-37出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1041610211001190
关键词
Addenbrooke's Cognitive Examination revised; mild cognitive impairment; dementia; Japanese; validation study
资金
- Japanese Ministry of Education, Culture, Sports, Science and Technology
- Zikei Institute of Psychiatry
- Grants-in-Aid for Scientific Research [21591517, 24591714] Funding Source: KAKEN
Background: Early detection of dementia will be important for implementation of disease-modifying treatments in the near future. We aimed to investigate the diagnostic validity and reliability of the Japanese version of the revised Addenbrooke's Cognitive Examination (ACE-R J) for identifying mild cognitive impairment (MCI) and dementia. Methods: We translated and adapted the original ACE-R for use with a Japanese population. Standard tests for evaluating cognitive decline and dementing disorders were applied. A total of 242 subjects (controls = 73, MCI = 39, dementia = 130) participated in this study. Results: The optimal cut-off scores of ACE-R J for detecting MCI and dementia were 88/89 (sensitivity 0.87, specificity 0.92) and 82/83 (sensitivity 0.99, specificity 0.99) respectively. ACE-R J was superior to the Mini-Mental State Examination in the detection of MCI (area under the curve (AUC): 0.952 vs. 0.868), while the accuracy of the two instruments did not differ significantly in identifying dementia (AUC: 0.999 vs. 0.993). The inter-rater reliability (ICC = 0.999), test-retest reliability (ICC = 0.883), and internal consistency (Cronbach's alpha = 0.903) of ACE-R J were excellent. Conclusion: ACE-R J proved to be an accurate cognitive instrument for detecting MCI and mild dementia. Further neuropsychological evaluation is required for the differential diagnosis of dementia subtypes.
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