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- Tervo, S, et al.
(författare)
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Incidence and risk factors for mild cognitive impairment: a population-based three-year follow-up study of cognitively healthy elderly subjects
- 2004
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Ingår i: Dementia and geriatric cognitive disorders. - : S. Karger AG. - 1420-8008 .- 1421-9824. ; 17:3, s. 196-203
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Tidskriftsartikel (refereegranskat)abstract
- <i>Background: </i>Mild cognitive impairment (MCI) has attracted considerable interest as a potential predictor of Alzheimer’s disease (AD). Both the apolipoprotein E (ApoE) Ε4 allele and vascular factors have been associated with a higher risk for AD, recently they have also been linked to the risk of MCI. <i>Objectives: </i>To estimate the incidence of MCI among cognitively healthy elderly subjects during a 3-year follow-up, and to evaluate the impact of demographic and vascular factors as well as the ApoE Ε4 allele on the conversion to MCI. <i>Methods: </i>At baseline, the cognitive abilities of 806 out of 1,150 eligible subjects (aged 60–76 years) from a population-based sample were examined. Cognitively intact subjects (n = 747) were followed for an average of 3 years. <i>Results: </i>66 subjects (8.8%) had converted to MCI. The global incidence rate of MCI was 25.94/1,000 person-years. Persons with higher age (OR 1.08, 95% CI 1.01–1.16), ApoE Ε4 allele carriers (OR 2.04, 95% CI 1.15–3.64) and persons with medicated hypertension (OR 1.86, 95% CI 1.05–3.29) were more likely to convert to MCI than those individuals of lower age and without an ApoE Ε4 allele or medicated hypertension. Persons with high education (OR 0.79, 95% CI 0.70–0.89) were less likely to convert to MCI than persons with low or no education. In subjects with both the ApoE Ε4 allele and medicated hypertension, the crude OR for conversion was 3.92 (95% CI 1.81–8.49). In subjects with cardiovascular disease, the crude OR for conversion was 2.13 (95% CI 1.26–3.60). Gender, elevated blood pressure, diabetes or cerebrovascular disease had no significant effect on the conversion to MCI. <i>Conclusion:</i> Higher age, the presence of at least one ApoE Ε4 allele and medicated hypertension are independent risk factors, but high education is a protective factor for MCI. The results suggest that vascular factors may have an important role in the pathogenesis of MCI.
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- Winblad, B, et al.
(författare)
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Mild cognitive impairment--beyond controversies, towards a consensus: report of the International Working Group on Mild Cognitive Impairment.
- 2004
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Ingår i: Journal of internal medicine. - : Wiley. - 0954-6820 .- 1365-2796. ; 256:3, s. 240-6
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Forskningsöversikt (refereegranskat)abstract
- The First Key Symposium was held in Stockholm, Sweden, 2-5 September 2003. The aim of the symposium was to integrate clinical and epidemiological perspectives on the topic of Mild Cognitive Impairment (MCI). A multidisciplinary, international group of experts discussed the current status and future directions of MCI, with regard to clinical presentation, cognitive and functional assessment, and the role of neuroimaging, biomarkers and genetics. Agreement on new perspectives, as well as recommendations for management and future research were discussed by the international working group. The specific recommendations for the general MCI criteria include the following: (i) the person is neither normal nor demented; (ii) there is evidence of cognitive deterioration shown by either objectively measured decline over time and/or subjective report of decline by self and/or informant in conjunction with objective cognitive deficits; and (iii) activities of daily living are preserved and complex instrumental functions are either intact or minimally impaired.
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