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. 2008 Mar 11;98(5):997-1000.
doi: 10.1038/sj.bjc.6604276. Epub 2008 Feb 19.

Association of colorectal adenoma with other malignancies in Swedish families

E Hiripi  1 , J Lorenzo Bermejo, J Sundquist, K Hemminki
Affiliations

Association of colorectal adenoma with other malignancies in Swedish families

E Hiripi et al. Br J Cancer. .

Abstract

Using the Swedish Family-Cancer Database covering over 11.5 million individuals, estimated relative risks (RRs) for colorectal adenoma were using Poisson's regression. The RR of colorectal adenoma was found to be increased among first-degree relatives of patients with colorectal cancer (2.72; 95% confidence interval=2.46-3.00) and among the offspring and siblings of patients with endometrial and prostate cancers. We also found an increased risk of colorectal adenoma for the offspring of individuals with stomach cancer and leukaemia, and for siblings of those with pancreatic cancer and multiple myeloma. Our results suggest that colorectal adenoma may share a genetic aetiology with cancer even at extracolorectal sites. Increases of colorectal adenoma in families affected by prostate cancer and acute leukaemia cannot be attributed to known cancer syndromes, although the play of chance cannot be excluded.

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