期刊
DEMENTIA AND GERIATRIC COGNITIVE DISORDERS
卷 43, 期 5-6, 页码 330-341出版社
KARGER
DOI: 10.1159/000477341
关键词
Mild cognitive impairment; Dementia; Neuropsychology
资金
- Sahlgrenska University Hospital
- Swedish Research Council
- Swedish Brain Power
- Swedish Dementia Foundation
- Swedish Alzheimer Foundation
- Stiftelsen Psykiatriska forskningsfonden
- Hjalmar Svensson Foundation
- Fredrik och Ingrid Thurings stiftelse
- Stiftelsen Wilhelm och Martina Lundgrens Vetenskapsfond
- Insamlingsstiftelsen for neurologisk forskning
- Gun och Bertil Stohnes stiftelse
Background/Aims: The prognostic accuracy of mild cognitive impairment (MCI) in clinical settings is debated, variable across criteria, cut-offs, subtypes, and follow-up time. We aimed to estimate the prognostic accuracy of MCI and the MCI subtypes for dementia using three different cut-off levels. Methods: Memory clinic patients were followed for 2 (n = 317, age 63.7 +/- 7.8) and 4-6 (n = 168, age 62.6 +/- 7.4) years. We used 2.0, 1.5, and 1.0 standard deviations (SD) below the mean of normal controls (n = 120, age 64.1 +/- 6.6) to categorize MCI and the MCI subtypes. Prognostic accuracy for dementia syndrome at follow-up was estimated. Results: Amnestic multi-domain MCI (aMCI-md) significantly predicted dementia under all conditions, most markedly when speed/attention, language, or executive function was impaired alongside memory. For aMCI-md, sensitivity increased and specificity decreased when the cut-off was lowered from 2.0 to 1.5 and 1.0 SD. Non-subtyped MCI had a high sensitivity and a low specificity. Conclusion: Our results suggest that aMCI-md is the only viable subtype for predicting dementia for both follow-up times. Lowering the cut-off decreases the positive predictive value and increases the negative predictive value of aMCI-md. The results are important for understanding the clinical prognostic utility of MCI, and MCI as a non-progressive disorder. (C) 2017 S. Karger AG, Basel
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