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Centre for Policy on Ageing | |
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Mild cognitive impairment in the oldest old
— a comparison of two approaches | | Author(s) | T B Hong, S H Zarit, B Johansson |
| Journal title | Aging & Mental Health, vol 7, no 4, July 2003 |
| Pages | pp 271-276 |
| Source | http://www.tandfonline.com |
| Keywords | Cognitive impairment ; Octogenarians ; Twins ; Longitudinal surveys ; Methodology ; Comparison ; Sweden. |
| Annotation | The predictive ability of two sets of criteria for mild cognitive impairment (MCI) was examined. A second purpose was to determine the incidence of MCI in a longitudinal, population-based sample of the oldest-old in Sweden - the Origin of Variance in the Old-Old Octogenarian Twins (OCTO-Twin) study - identified through the Swedish Twin Registry. The 263 participants were randomly selected singletons from twin pairs, and were initially aged 80+ (mean age 83); they were re-examined after 2, 3, 6 and 8 years. MCI was rated at baseline using both Petersen's and Ritchie's criteria. Petersen's criteria emphasise memory and memory complaint, whereas Ritchie's criteria use a broader set of cognitive indicators. The incidence rate was comparable to that of other studies. However, neither set of criteria predicted subsequent dementia, and this failure suggests that there may be many sources of MCI in very late life besides incipient dementia. The presence of a key informant, as well as the weighting of performance across domains by an experienced clinicians, both of which are hard to quantify, may be the key elements that give predictive values to MCI in previous studies. (RH). |
| Accession Number | CPA-030806224 A |
| Classmark | E4: BBM: SVR: 3J: 3D: 48: 76P |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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