A clinical index to predict progression from mild cognitive impairment to dementia due to Alzheimer's disease.
Mild cognitive impairment is often a precursor to dementia due to Alzheimer's disease, but many patients with mild cognitive impairment never develop dementia. New diagnostic criteria may lead to more patients receiving a diagnosis of mild cognitive impairment.To develop a prediction index for...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2014-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4259326?pdf=render |
| _version_ | 1819070454477881344 |
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| author | Sei J Lee Christine S Ritchie Kristine Yaffe Irena Stijacic Cenzer Deborah E Barnes |
| author_facet | Sei J Lee Christine S Ritchie Kristine Yaffe Irena Stijacic Cenzer Deborah E Barnes |
| author_sort | Sei J Lee |
| collection | DOAJ |
| description | Mild cognitive impairment is often a precursor to dementia due to Alzheimer's disease, but many patients with mild cognitive impairment never develop dementia. New diagnostic criteria may lead to more patients receiving a diagnosis of mild cognitive impairment.To develop a prediction index for the 3-year risk of progression from mild cognitive impairment to dementia relying only on information that can be readily obtained in most clinical settings.382 participants diagnosed with amnestic mild cognitive impairment enrolled in the Alzheimer's Disease Neuroimaging Initiative (ADNI), a multi-site, longitudinal, observational study.Demographics, comorbid conditions, caregiver report of participant symptoms and function, and participant performance on individual items from basic neuropsychological scales.Progression to probable Alzheimer's disease.Subjects had a mean (SD) age of 75 (7) years and 43% progressed to probable Alzheimer's disease within 3 years. Important independent predictors of progression included being female, resisting help, becoming upset when separated from caregiver, difficulty shopping alone, forgetting appointments, number of words recalled from a 10-word list, orientation and difficulty drawing a clock. The final point score could range from 0 to 16 (mean [SD]: 4.2 [2.9]). The optimism-corrected Harrell's c-statistic was 0.71(95% CI: 0.68-0.75). Fourteen percent of subjects with low risk scores (0-2 points, n = 124) converted to probable Alzheimer's disease over 3 years, compared to 51% of those with moderate risk scores (3-8 points, n = 223) and 91% of those with high risk scores (9-16 points, n = 35).An index using factors that can be obtained in most clinical settings can predict progression from amnestic mild cognitive impairment to probable Alzheimer's disease and may help clinicians differentiate between mild cognitive impairment patients at low vs. high risk of progression. |
| first_indexed | 2024-12-21T17:06:12Z |
| format | Article |
| id | doaj.art-38a80d95fcc84d3cbbd0c86693106da3 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-21T17:06:12Z |
| publishDate | 2014-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-38a80d95fcc84d3cbbd0c86693106da32022-12-21T18:56:32ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-01912e11353510.1371/journal.pone.0113535A clinical index to predict progression from mild cognitive impairment to dementia due to Alzheimer's disease.Sei J LeeChristine S RitchieKristine YaffeIrena Stijacic CenzerDeborah E BarnesMild cognitive impairment is often a precursor to dementia due to Alzheimer's disease, but many patients with mild cognitive impairment never develop dementia. New diagnostic criteria may lead to more patients receiving a diagnosis of mild cognitive impairment.To develop a prediction index for the 3-year risk of progression from mild cognitive impairment to dementia relying only on information that can be readily obtained in most clinical settings.382 participants diagnosed with amnestic mild cognitive impairment enrolled in the Alzheimer's Disease Neuroimaging Initiative (ADNI), a multi-site, longitudinal, observational study.Demographics, comorbid conditions, caregiver report of participant symptoms and function, and participant performance on individual items from basic neuropsychological scales.Progression to probable Alzheimer's disease.Subjects had a mean (SD) age of 75 (7) years and 43% progressed to probable Alzheimer's disease within 3 years. Important independent predictors of progression included being female, resisting help, becoming upset when separated from caregiver, difficulty shopping alone, forgetting appointments, number of words recalled from a 10-word list, orientation and difficulty drawing a clock. The final point score could range from 0 to 16 (mean [SD]: 4.2 [2.9]). The optimism-corrected Harrell's c-statistic was 0.71(95% CI: 0.68-0.75). Fourteen percent of subjects with low risk scores (0-2 points, n = 124) converted to probable Alzheimer's disease over 3 years, compared to 51% of those with moderate risk scores (3-8 points, n = 223) and 91% of those with high risk scores (9-16 points, n = 35).An index using factors that can be obtained in most clinical settings can predict progression from amnestic mild cognitive impairment to probable Alzheimer's disease and may help clinicians differentiate between mild cognitive impairment patients at low vs. high risk of progression.http://europepmc.org/articles/PMC4259326?pdf=render |
| spellingShingle | Sei J Lee Christine S Ritchie Kristine Yaffe Irena Stijacic Cenzer Deborah E Barnes A clinical index to predict progression from mild cognitive impairment to dementia due to Alzheimer's disease. PLoS ONE |
| title | A clinical index to predict progression from mild cognitive impairment to dementia due to Alzheimer's disease. |
| title_full | A clinical index to predict progression from mild cognitive impairment to dementia due to Alzheimer's disease. |
| title_fullStr | A clinical index to predict progression from mild cognitive impairment to dementia due to Alzheimer's disease. |
| title_full_unstemmed | A clinical index to predict progression from mild cognitive impairment to dementia due to Alzheimer's disease. |
| title_short | A clinical index to predict progression from mild cognitive impairment to dementia due to Alzheimer's disease. |
| title_sort | clinical index to predict progression from mild cognitive impairment to dementia due to alzheimer s disease |
| url | http://europepmc.org/articles/PMC4259326?pdf=render |
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