Cited by 455Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsMenopause: Health Impacts and Treatments

Incidence and Risk of Dementia: The Rotterdam study

Ott, A., Breteler, M. M.B., Harskamp, F. v., Stijnen, T., Hofman, A.·1998·American Journal of Epidemiology

Abstract

To assess age-, sex-, and subtype-specific incidence rates of dementia and to calculate the risk of dementia, the authors performed a large, community-based, prospective cohort study on dementia as part of the Rotterdam Study. Participants were recruited among residents of a suburb of Rotterdam, aged 55 years and older. Baseline examinations took place between 1990 and 1993. The average follow-up was 2.1 years. Screening for dementia followed a three-stage protocol. Medical records of subjects who had died or could not be examined in person were evaluated. Of 7,046 subjects who were nondemented at baseline, 162 developed dementia during 15,135 person-years of follow-up, resulting in an overall incidence rate of 10.7 per 1,000 person-years. From the youngest to the oldest 5-year age category, the incidence rate increased from 0.6 to 97.2 per 1,000 person-years. Only in men did the increase level off after age 85. Overall, the incidence rate per 1,000 person-years was 7.7 for Alzheimer's disease and 1.5 for vascular dementia. Dementia incidence rates and dementia-free Kaplan-Meier survival tables were used to calculate age- and sex-specific cumulative risks of dementia. Although the incidence rates of men and women up to age 85 were similar, the lifetime risk of dementia for 55-year-old women was twice as high as for men (0.33 vs. 0.16), reflecting both the higher life expectancy of women and the higher dementia risk at very old age.

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  1. Roman GC, Tatemichi TK, Erkinjuntti T, et al. Vascular dementia: diagnostic criteria for research studies. Report of the NINDS-AIREN International Workshop. Neurology 1993; 43:250-60.
  2. Seshadri S, Wolf PA, Beiser A, et al. Lifetime risk of dementia and Alzheimer's disease: estimates from the Framingham Study. Presented at the 48th Annual Meeting of the American Academy of Neurology, San Francisco, California, March 1996. Am J Epidemiol Vol. 147, No. 6, 1998

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Authors
Ott, A., Breteler, M. M. B., Harskamp, F. V., Stijnen, T., & Hofman, A.
Affiliations
Erasmus MC (NL)
Corresponding author
Ott, A.
Venue
American Journal of Epidemiology
Published
1998-03-15
Volume
147
Issue
6
Pages
574-580
ISSN
  • 0002-9262 (ISSN-L)
  • 1476-6256
OpenAlex
W2039379003
Cited by
455
References
16
Citations by year
2026: 6 · 2025: 10 · 2024: 4 · 2023: 9 · 2022: 16 · 2021: 9 · 2020: 36 · 2019: 9 · 2018: 16 · 2017: 11 · 2016: 10 · 2015: 14 · 2014: 10 · 2013: 16 · 2012: 18
FWCI
15.00
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Epidemiology (publishedVersion)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
Funders
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Menopause: Health Impacts and Treatments
Keywords
dementia incidence, dementia risk, Alzheimer's disease, vascular dementia, age-specific incidence, sex differences, lifetime risk, older adults, Rotterdam Study
MeSH terms
Aged, Aged, 80 and over, Dementia, Female, Humans, Male, Middle Aged, Netherlands, Prospective Studies, Risk, Incidence, Age Distribution, Sex Distribution

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