Cited by 451Parkinson's Disease Mechanisms and TreatmentsDementia and Cognitive Impairment ResearchNeurological disorders and treatments

Dementia and survival in Parkinson disease: A 12-year population study

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Buter, T. C., van den Hout, A., Matthews, F. E., Larsen, J. P., Brayne, C., Aarsland, D.·2008·Neurology

Abstract

BACKGROUND: The risk for dementia in Parkinson disease (PD) is high, with important clinical consequences for patients with PD. However, the absolute risk of dementia and how it affects survival in PD are not known. Such questions are important for patients, their families, and service providers but require long-term studies. METHODS: This study is a prospective longitudinal cohort study with patients from a prevalence study of PD in Norway. Patients were reassessed 4, 8, 9, 10, 11, and 12 years after prevalence day. A dementia diagnosis according to Diagnostic and Statistical Manual of Mental Disorders, Third Edition, Revised, criteria was based on a semistructured caregiver interview, cognitive rating scales, and neuropsychological tests. Progression from PD to PD with dementia and death was modeled using a continuous-time three-state irreversible Markov model. RESULTS: A total of 233 PD patients were included, and 140 patients (60%, 95% CI 54% to 66%) had developed dementia by the end of the study period. The cumulative incidence of dementia steadily increases with age and duration of PD and, conditional on survival, increases to 80% to 90% by age 90 years. Women live with PD longer than men and spend more years with dementia. At age 70 years, a man with PD but no dementia has a life expectancy of 8 years, of which 5 years would be expected to be dementia free and 3 years would be expected to be with dementia. CONCLUSION: Dementia is a key part of survival in Parkinson disease and must be planned for in services for this condition.

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Crossref · 10.1212/01.wnl.0000306632.43729.24

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Authors
Buter, T. C., van den Hout, A., Matthews, F. E., Larsen, J. P., Brayne, C., & Aarsland, D.
Affiliations
  • University of Cambridge (GB)
  • From the Norwegian Centre for Movement Disorders (T.C.B., J.P.L., D.A.), Stavanger University Hospital, Stavanger, Norway; Institute of Clinical Medicine (J.P.L., D.A.), University of Bergen, Norway; MRC Biostatistics Unit (A.v.d.H., F.E.M.), Institute of Public Health, University of Cambridge; and Department of Public Health and Primary Care (C.B.), University of Cambridge, UK.
Venue
Neurology
Published
2008-03-25
Volume
70
Issue
13
Pages
1017-1022
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2000216201
Cited by
451
References
37
Citations by year
2026: 7 · 2025: 14 · 2024: 24 · 2023: 12 · 2022: 25 · 2021: 26 · 2020: 25 · 2019: 21 · 2018: 26 · 2017: 34 · 2016: 29 · 2015: 27 · 2014: 22 · 2013: 27 · 2012: 23
FWCI
22.63
Type
journal article
Language
en
Licence
cc-by
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Repository@Hull (Worktribe) (University of Hull) (submittedVersion, cc-by)
  • Repository@Hull (Worktribe) (University of Hull) (submittedVersion)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
Keywords
Parkinson's disease, dementia, survival, dementia risk, life expectancy, dementia incidence, sex differences, disease progression, Markov model, cognitive decline
MeSH terms
Adult, Age Factors, Aged, Aged, 80 and over, Dementia, Female, Humans, Life Expectancy, Longitudinal Studies, Male, Middle Aged, Norway, Parkinson Disease, Prospective Studies, Risk Factors, Sex Factors, Cohort Studies, Comorbidity, Incidence, Survival Rate, Age Distribution, Sex Distribution

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