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A Self-Report Risk Index to Predict Occurrence of Dementia in Three Independent Cohorts of Older Adults: The ANU-ADRI
Stockholms universitet, Samhällsvetenskapliga fakulteten, Centrum för forskning om äldre och åldrande (ARC), (tills m KI).
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2014 (Engelska)Ingår i: PLOS ONE, E-ISSN 1932-6203, Vol. 9, nr 1, s. e86141-Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background and Aims: The Australian National University AD Risk Index (ANU-ADRI, http://anuadri.anu.edu.au) is a self-report risk index developed using an evidence-based medicine approach to measure risk of Alzheimer's disease (AD). We aimed to evaluate the extent to which the ANU-ADRI can predict the risk of AD in older adults and to compare the ANU-ADRI to the dementia risk index developed from the Cardiovascular Risk Factors, Aging and Dementia (CAIDE) study for middle-aged cohorts. Methods: This study included three validation cohorts, i.e., the Rush Memory and Aging Study (MAP) (n = 903, age >= 53 years), the Kungsholmen Project (KP) (n = 905, age >= 75 years), and the Cardiovascular Health Cognition Study (CVHS) (n = 2496, age >= 65 years) that were each followed for dementia. Baseline data were collected on exposure to the 15 risk factors included in the ANU-ADRI of which MAP had 10, KP had 8 and CVHS had 9. Risk scores and C-statistics were computed for individual participants for the ANU-ADRI and the CAIDE index. Results: For the ANU-ADRI using available data, the MAP study c-statistic was 0.637 (95% CI 0.596-0.678), for the KP study it was 0.740 (0.712-0.768) and for the CVHS it was 0.733 (0.691-0.776) for predicting AD. When a common set of risk and protective factors were used c-statistics were 0.689 (95% CI 0.650-0.727), 0.666 (0.628-0.704) and 0.734 (0.707-0.761) for MAP, KP and CVHS respectively. Results for CAIDE ranged from c-statistics of 0.488 (0.427-0.554) to 0.595 (0.565-0.625). Conclusion: A composite risk score derived from the ANU-ADRI weights including 8-10 risk or protective factors is a valid, self-report tool to identify those at risk of AD and dementia. The accuracy can be further improved in studies including more risk factors and younger cohorts with long-term follow-up.

Ort, förlag, år, upplaga, sidor
2014. Vol. 9, nr 1, s. e86141-
Nationell ämneskategori
Gerontologi, medicinsk/hälsovetenskaplig inriktning
Identifikatorer
URN: urn:nbn:se:su:diva-101243DOI: 10.1371/journal.pone.0086141ISI: 000330288000056OAI: oai:DiVA.org:su-101243DiVA, id: diva2:703500
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Vetenskapsrådet
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AuthorCount:8;

Tillgänglig från: 2014-03-07 Skapad: 2014-03-03 Senast uppdaterad: 2022-03-23Bibliografiskt granskad

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Centrum för forskning om äldre och åldrande (ARC), (tills m KI)
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Gerontologi, medicinsk/hälsovetenskaplig inriktning

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