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- Börjesson-Hanson, Anne, 1959, et al.
(författare)
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Five-year mortality in relation to dementia and cognitive function in 95-year-olds.
- 2007
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Ingår i: Neurology. - : Ovid Technologies (Wolters Kluwer Health). - 0028-3878 .- 1526-632X. ; 69:22, s. 2069-75
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Dementia is a known predictor of mortality, but most studies include small numbers of participants above age 90. The influence of dementia or cognition on mortality in this age group is therefore uncertain. OBJECTIVE: To examine 5-year mortality in relation to dementia and cognitive performance at age 95. METHODS: A population sample of 338 individuals examined at age 95 was followed to age 100. Dementia was diagnosed according to DSM-III-R criteria. Cognitive function was measured using the Mini-Mental State Examination (MMSE). Information on severe physical disorders was obtained from the Swedish Hospital Discharge Register, and date of death from the Swedish Population Register. RESULTS: Five-year mortality was higher in 95-year-olds with dementia than in 95-year-olds without dementia (96% vs 73%; p < 0.0001), even when adjusting for severe physical disorders. A Cox regression analysis with calculation of population attributable risk (PAR), calculated from adjusted relative risks, showed that mortality was predicted by dementia (PAR 42%), cardiac disease (PAR 17%), cancer (PAR 6%), and male sex (PAR 7%), but not by stroke. Among the subjects without dementia, cognitive performance measured using the MMSE (n = 133 with complete tests; 81% of the subjects without dementia) predicted mortality. For each point increase in the MMSE, mortality decreased by 13%. CONCLUSIONS: In 95-year-olds, dementia, as well as cognitive performance in the subjects without dementia, influences mortality. When controlling for other severe medical conditions we found dementia to be the leading cause of deaths among the oldest old. The reason why dementia and cognitive function predict life expectancy requires further elucidation.
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| 2. |
- Börjesson-Hanson, Anne, 1959, et al.
(författare)
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One-Month Prevalence of Mental Disorders in a Population Sample of 95-Year Olds.
- 2011
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Ingår i: The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry. - 1545-7214. ; 19:3, s. 284-91
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE:: To determine the 1-month prevalence of mental disorders among 95-year olds. DESIGN:: Cross-sectional population sample of 95-year olds. SETTING:: All 95-year olds born in the period 1901-1903 living in Gothenburg, Sweden, were invited. Elderly living in both community settings and nursing homes were included. PARTICIPANTS:: In total, 338 95-year olds (response rate: 65%) were examined (263 women, 75 men). MEASUREMENTS:: All participants were examined by psychiatrists using the Comprehensive Psychopathological Rating Scale and cognitive tests. Mental disorders were classified according to Diagnostic and Statistical Manual of Mental Disorders, Third Edition, Revised criteria. RESULTS:: Two-third of all 95-year olds had a mental disorder. In the total sample of 95-year olds, the 1-month prevalence was 52% for dementia, 8% for depression, 4% for anxiety, and 3% for psychotic disorders. Almost one-third (29%) of the nondemented 95-year olds fulfilled criteria for a psychiatric disorder: 17% had depression, 9% anxiety, and 7% psychotic disorder. CONCLUSIONS:: The combined prevalence of mental disorders was high among 95-year olds, even after excluding dementia. These findings emphasize the importance of research, care, and detection of psychiatric problems in this age group.
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| 3. |
- Olesen, Pernille J, et al.
(författare)
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A population-based study on the influence of brain atrophy on 20-year survival after age 85.
- 2011
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Ingår i: Neurology. - 0028-3878. ; 76:10, s. 879-86
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Tidskriftsartikel (refereegranskat)abstract
- Individuals aged 80 years and older is the fastest growing segment of the population worldwide. To understand the biology behind increasing longevity, it is important to examine factors related to survival in this age group. The relationship between brain atrophy and survival after age 85 remains unclear.
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| 5. |
- Thorvaldsson, Valgeir, 1976, et al.
(författare)
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Onset and rate of cognitive change before dementia diagnosis: findings from two Swedish population-based longitudinal studies
- 2011
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Ingår i: Journal of the International Neuropsychological Society. - 1469-7661 .- 1355-6177. ; 17:1, s. 154-62
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Tidskriftsartikel (refereegranskat)abstract
- We used data from two population-based longitudinal studies to estimate time of onset and rate of accelerated decline across cognitive domains before dementia diagnosis. The H70 includes an age-homogeneous sample (127 cases and 255 non-cases) initially assessed at age 70 with 12 follow-ups over 30 years. The Kungsholmen Project (KP) includes an age-heterogeneous sample (279 cases and 562 non-cases), with an average age of 82 years at initial assessment, and 4 follow-ups spanning 13 years. We fit mixed linear models to the data and determined placement of change points by a profile likelihood method. Results demonstrated onset of accelerated decline for fluid (speed, memory) versus crystallized (verbal, clock reading) abilities occurring approximately 10 and 5 years before diagnosis, respectively. Although decline before change points was greater for fluid abilities, acceleration was more pronounced for crystallized abilities after the change points. This suggests that onset and rate of acceleration vary systematically along the fluid-crystallized ability continuum. There is early onset in fluid abilities, but these changes are difficult to detect due to substantial age-related decline. Onset occurred later and acceleration was greater in crystallized abilities, suggesting that those markers may provide more valid identification of cases in later stages of the prodromal phase.
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| 6. |
- Östling, Svante, 1953, et al.
(författare)
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Psychotic Symptoms in a Population-Based Sample of 85-Year-Old Individuals With Dementia.
- 2011
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Ingår i: Journal of geriatric psychiatry and neurology. - : SAGE Publications. - 0891-9887 .- 1552-5708. ; 24:1, s. 3-8
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Tidskriftsartikel (refereegranskat)abstract
- Psychotic symptoms are common in elderly persons with dementia. These symptoms affect a person's ability to function in daily life and put strain on the caregiver. Most studies focus on psychotic symptoms in clinical samples with Alzheimer disease (AD). Thus, their prevalence and relation with dementia subtype and severity in very old populations is unclear. We assessed a representative sample of 85-year-old individuals living in Gothenburg, Sweden (n = 494) using neuropsychiatric examinations, key informant interviews, and medical record reviews; 147 had dementia. Dementia and its severity were diagnosed in accordance with Diagnostic and Statistical Manual of Mental Disorders (Third Edition, Revision [DSM-III-R]) criteria. Alzheimer disease according to the National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) criteria was diagnosed in 64 persons and vascular dementia (VaD) according to Erkinjuntti criteria was observed in 69. Fourteen had dementia due to other causes. Psychotic symptoms were classified according to DSM-III-R. The prevalence of psychotic symptoms in this very old population was 36% among AD cases compared to 54% in VaD cases (P = .04). Proportions with psychotic symptoms increased with increasing dementia severity in individuals with AD. No such association could be shown in those with VaD. This finding of a high proportion of psychotic symptoms also in individuals with mild severity of VaD should alert health professionals to evaluate dementia in very old patients who present with hallucinations or delusions.
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