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Atypical cancer pattern in patients with Parkinson's disease

Open access
Olsen, J H, Friis, S, Frederiksen, K, McLaughlin, J K, Mellemkjaer, L, Møller, H·2005·British Journal of Cancer

Abstract

Among 14,088 patients, with a primary diagnosis of Parkinson's disease during the period 1977-98 identified from the National Register of Patients, 1282 cancers were subsequently recorded in the Danish Cancer Registry, compared with 1464 expected, with a standardised incidence ratio (SIR) of 0.88 (95% confidence interval (CI), 0.8-0.9). Significantly reduced risks were found for smoking-related cancers, for example, cancers of the lung (SIR, 0.38), larynx (0.47) and urinary bladder (0.52), although moderate reductions in risk were also seen for several nonsmoking-related cancers. In contrast, increased risks were seen for malignant melanoma (SIR, 1.95; 95% CI, 1.4-2.6), nonmelanocytic skin cancer (1.25; 1.1-1.4) and breast cancer (1.24; 1.0-1.5). The observed cancer pattern supports the hypothesis that constituents of tobacco smoke inhibit or delay the development of Parkinson's disease, but a low smoking prevalence appears to be only part of the explanation for the decreased cancer incidence. The increased relative risks of melanoma and nonmelanoma skin cancer are not likely to be artefactual, but further investigations of potential mechanisms are warranted.

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Metadata

Authors
Olsen, J. H., Friis, S., Frederiksen, K., McLaughlin, J. K., Mellemkjaer, L., & Møller, H.
Venue
British Journal of Cancer
Published
2004-12-07
Volume
92
Issue
1
Pages
201-205
ISSN
  • 0007-0920 (ISSN-L)
  • 1532-1827
OpenAlex
W2155538049
Cited by
209
References
1
FWCI
5.06
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Atypical cancer pattern in patients with Parkinson's disease. https://app.cochat.ai/papers/10.1038/sj.bjc.6602279
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Olsen, J. H., Friis, S., Frederiksen, K., McLaughlin, J. K., Mellemkjaer, L., & Møller, H. (2005). Atypical cancer pattern in patients with Parkinson's disease. British Journal of Cancer. https://doi.org/10.1038/sj.bjc.6602279

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