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Cancer. 2012 Sep 15;118(18):4437-43. doi: 10.1002/cncr.26653. Epub 2012 Mar 12.

Circumcision and the risk of prostate cancer.

Author information

  • 1Department of Urology, University of Washington School of Medicine, Seattle, WA, USA. jlwright@uw.edu

Abstract

BACKGROUND:

Several lines of evidence support a role for infectious agents in the development of prostate cancer (PCa). In particular, sexually transmitted infections (STIs) have been implicated in PCa etiology, and studies have found that the risk of acquiring a STI can be reduced with circumcision. Therefore, circumcision may reduce PCa risk.

METHODS:

Participant data collected as part of 2 population-based case-control studies of PCa were analyzed. Self-reported circumcision status, age at circumcision, and age at first sexual intercourse were recorded along with a history of STIs or prostatitis. Multivariate logistic regression was used to estimate the relative risk of PCa by circumcision status.

RESULTS:

Data from 1754 cases and 1645 controls were available. Circumcision before first sexual intercourse was associated with a 15% reduction in risk of PCa compared to that of uncircumcised men (95% confidence interval [CI], 0.73-0.99). This risk reduction was observed for cases with both less aggressive (odds ratio, 0.88; 95% CI, 0.74-1.04) and more aggressive (odds ratio, 0.82; 95% CI, 0.66-1.00) PCa features.

CONCLUSIONS:

Circumcision before first sexual intercourse is associated with a reduction in the relative risk of PCa in this study population. These findings are consistent with research supporting the infectious/inflammation pathway in prostate carcinogenesis.

Copyright © 2012 American Cancer Society.

Comment in

PMID:
22411189
[PubMed - indexed for MEDLINE]
PMCID:
PMC3376675
Free PMC Article
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