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Cited by 553

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

A Reevaluation of the Duration of Survival after the Onset of Dementia

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Wolfson, Christina, Wolfson, David B., Asgharian, Masoud, M'Lan, Cyr Emile, Østbye, Truls, Rockwood, Kenneth, Hogan, D.B.·2001·New England Journal of Medicine
DOI 10.1056/nejm200104123441501
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Abstract

BACKGROUND: Dementia shortens life expectancy; estimates of median survival after the onset of dementia have ranged from 5 to 9.3 years. Previous studies of people with existing dementia, however, may have underestimated the deleterious effects of dementia on survival by failing to consider persons with rapidly progressive illness who died before they could be included in a study (referred to as length bias). METHODS: We used data from the Canadian Study of Health and Aging to estimate survival from the onset of symptoms of dementia; the estimate was adjusted for length bias. A random sample of 10,263 subjects 65 years old or older from throughout Canada was screened for cognitive impairment. For those with dementia, we ascertained the date of onset and conducted follow-up for five years. RESULTS: We analyzed data on 821 subjects, of whom 396 had probable Alzheimer's disease, 252 had possible Alzheimer's disease, and 173 had vascular dementia. For the group as a whole, the unadjusted median survival was 6.6 years (95 percent confidence interval, 6.2 to 7.1). After adjustment for length bias, the estimated median survival was 3.3 years (95 percent confidence interval, 2.7 to 4.0). The median survival was 3.1 years for subjects with probable Alzheimer's disease, 3.5 years for subjects with possible Alzheimer's disease, and 3.3 years for subjects with vascular dementia. CONCLUSIONS: Median survival after the onset of dementia is much shorter than has previously been estimated.

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Metadata

Authors
Wolfson, C., Wolfson, D. B., Asgharian, M., M'Lan, C. E., Østbye, T., Rockwood, K., & Hogan, D. B.
Venue
New England Journal of Medicine
Publisher
Massachusetts Medical Society
Published
2001-04-12
Volume
344
Issue
15
Pages
1111-1116
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
DOI
10.1056/nejm200104123441501
OpenAlex
W1966791814
Cited by
553
References
3
FWCI
18.04
Type
journal article
Language
en
Open access
bronze

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