Cited by 578Dementia and Cognitive Impairment ResearchFrailty in Older AdultsAging, Health, and Disability

Predictors of cognitive decline and mortality of aged people over a 10‐year period

Tilvis, R. S., Kahonen-Vare, M. H., Jolkkonen, J., Valvanne, J., Pitkala, K. H., Strandberg, T. E.·2004·The Journals of Gerontology Series A: Biological Sciences and Medical Sciences

Abstract

BACKGROUND: The search for preventable and remediable risk conditions of cognitive decline is ongoing, but results have thus far been inconsistent. According to the hypothesis of our 10-year prospective study, the predictive values of different risk indicators change over time in a general 75+ population. METHODS: A population-based sample of 75-, 80-, and 85-year-old individuals (n=650) underwent comprehensive clinical examinations in 1990 in Helsinki, Finland. Cognitive function was assessed by the Mini-Mental State Examination (MMSE) and/or Clinical Dementia Rating (CDR) at baseline and after 1, 5, and 10 years. RESULTS: At baseline, a low MMSE score was associated with age, history of stroke, apolipoprotein E allele epsilon4 (APOE4), and intermittent claudication. After 1 year, cognitive decline was typical of participants suffering from vascular diseases, e.g., heart failure and intermittent claudication. Five-year decline was predicted by the presence of atrial fibrillation (RR [relative risk] 2.8), APOE4 (RR 2.4), elevated C-reactive protein (CRP) (RR 2.3), diabetes mellitus (RR 2.2), and heart failure (RR 1.8). They also tended to increase 5-year all-cause mortality. At 10 years, the decline associated with APOE4 (RR 3.3), slightly elevated serum ionized calcium (RR 3.3), and feelings of loneliness (RR 3.0). CONCLUSIONS: Long follow-up of a general aged population explains several inconsistencies of earlier reports. In 75+ individuals, general ill health is a strong associate of cognitive deficits. The strongest predictors of both cognitive decline and mortality are age, APOE4, manifest vascular diseases, and diabetes. The role of new potential predictors, feelings of loneliness and hypercalcemia, needs clinical testing.

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Crossref · 10.1093/gerona/59.3.m268

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  • Earlier studies on social factors and cognitive decline in middle-and older-aged adults have commonly followed a single measurement approach.

    “Earlier studies on social factors and cognitive decline in middle-and older-aged adults have commonly followed a single measurement approach.[13][14][15]”
  • Baseline age, gender, and educational level were controlled for in all analyses.

    “Baseline age (years), gender, and educational level (years) are all well-established covariates of late-life cognitive function (Barnes et al., 2003;Tervo et al., 2004;Tilvis et al., 2004) and were controlled for in all analyses.”

    From Living alone and cognitive function in later life (2019) · cites this paper as Tilvis et al., 2004

  • Age, gender, and education are established covariates of late-life cognition.

    “which are established covariates of late-life cognition [35–37].”
  • In one study that reported diabetes status of individuals lost to follow-up, diabetic participants had higher mortality and/or lower follow-up rates than those without diabetes.

    “Indeed, in one study, which did report diabetes status of individuals lost to follow-up, diabetic participants had a higher mortality and/ or lower follow-up rates than those without diabetes [55].”

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Authors
Tilvis, R. S., Kahonen-Vare, M. H., Jolkkonen, J., Valvanne, J., Pitkala, K. H., & Strandberg, T. E.
Affiliations
Helsinki University Hospital (FI)
Corresponding author
Tilvis, R. S.
Venue
The Journals of Gerontology Series A: Biological Sciences and Medical Sciences
Published
2004-03-01
Volume
59
Issue
3
Pages
M268-M274
ISSN
  • 1079-5006 (ISSN-L)
  • 1758-535X
OpenAlex
W2101934488
Cited by
578
References
39
Citations by year
2026: 15 · 2025: 11 · 2024: 21 · 2023: 28 · 2022: 34 · 2021: 65 · 2020: 35 · 2019: 37 · 2018: 36 · 2017: 27 · 2016: 22 · 2015: 30 · 2014: 31 · 2013: 24 · 2012: 27
FWCI
9.54
Type
journal article
Language
en
Open access
closed
Locations
  • The Journals of Gerontology Series A (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Helsingin Yliopisto
  • Academy of Finland (48613)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Geriatrics and Gerontology › Frailty in Older Adults
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Aging, Health, and Disability
Keywords
cognitive decline, mortality, oldest old, APOE ε4, atrial fibrillation, heart failure, diabetes mellitus, C-reactive protein, vascular disease, loneliness, hypercalcemia, stroke, risk factors
MeSH terms
Aged, Aged, 80 and over, Cognition Disorders, Female, Follow-Up Studies, Geriatrics, Humans, Male, Mortality, Prognosis, Prospective Studies, Time Factors

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