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Low Cancer Rates among Patients with Dementia in a Population-Based Register Study in Sweden.

Attner, Bo LU ; Lithman, Thor; Noreen, Dennis and Olsson, Håkan LU (2010) In Dementia and Geriatric Cognitive Disorders 30(1). p.39-42
Abstract
Background: Some studies have suggested a lower incidence of cancer in patients with dementia. We studied this further for 18 cancer types in population-based registers. Methods: In 19,756 cases and in 147,324 age- and sex-matched controls a diagnosis of dementia was studied 9-45 months prior to the diagnosis of cancer. Results: Overall a diagnosis of dementia was significantly less common among the cancer cases (risk ratio, RR = 0.60; 95% CI = 0.52-0.69). Conclusion: The study confirms previous findings that patients with dementia have a lower risk of cancer. Because the effect was seen for all tumour types and especially for patients older than 70 years and since the deficit was more pronounced for patients with tumours situated within... (More)
Background: Some studies have suggested a lower incidence of cancer in patients with dementia. We studied this further for 18 cancer types in population-based registers. Methods: In 19,756 cases and in 147,324 age- and sex-matched controls a diagnosis of dementia was studied 9-45 months prior to the diagnosis of cancer. Results: Overall a diagnosis of dementia was significantly less common among the cancer cases (risk ratio, RR = 0.60; 95% CI = 0.52-0.69). Conclusion: The study confirms previous findings that patients with dementia have a lower risk of cancer. Because the effect was seen for all tumour types and especially for patients older than 70 years and since the deficit was more pronounced for patients with tumours situated within the body, the data suggest that malignancies are underdiagnosed for persons with dementia. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Dementia and Geriatric Cognitive Disorders
volume
30
issue
1
pages
39 - 42
publisher
Karger
external identifiers
  • wos:000280936900007
  • pmid:20689281
  • scopus:77955102079
ISSN
1420-8008
DOI
10.1159/000315509
language
English
LU publication?
yes
id
5ca0c8c1-6100-4ab6-8bd7-6419a00c2d50 (old id 1665520)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/20689281?dopt=Abstract
date added to LUP
2010-09-02 10:51:09
date last changed
2018-06-03 04:30:45
@article{5ca0c8c1-6100-4ab6-8bd7-6419a00c2d50,
  abstract     = {Background: Some studies have suggested a lower incidence of cancer in patients with dementia. We studied this further for 18 cancer types in population-based registers. Methods: In 19,756 cases and in 147,324 age- and sex-matched controls a diagnosis of dementia was studied 9-45 months prior to the diagnosis of cancer. Results: Overall a diagnosis of dementia was significantly less common among the cancer cases (risk ratio, RR = 0.60; 95% CI = 0.52-0.69). Conclusion: The study confirms previous findings that patients with dementia have a lower risk of cancer. Because the effect was seen for all tumour types and especially for patients older than 70 years and since the deficit was more pronounced for patients with tumours situated within the body, the data suggest that malignancies are underdiagnosed for persons with dementia.},
  author       = {Attner, Bo and Lithman, Thor and Noreen, Dennis and Olsson, Håkan},
  issn         = {1420-8008},
  language     = {eng},
  number       = {1},
  pages        = {39--42},
  publisher    = {Karger},
  series       = {Dementia and Geriatric Cognitive Disorders},
  title        = {Low Cancer Rates among Patients with Dementia in a Population-Based Register Study in Sweden.},
  url          = {http://dx.doi.org/10.1159/000315509},
  volume       = {30},
  year         = {2010},
}