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The association of breast cancer and colorectal cancer in men. An analysis of surveillance, epidemiology, and end results program data
Author(s) -
Neugut Alfred I.,
Murray Todd I.,
Lee Won Chul,
Robinson Eliezer
Publication year - 1991
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(19911101)68:9<2069::aid-cncr2820680938>3.0.co;2-m
Subject(s) - medicine , colorectal cancer , breast cancer , cancer , epidemiology , oncology , epidemiology of cancer , incidence (geometry) , prostate cancer , prostate , gynecology , obstetrics , physics , optics
There is a known increased risk for the co‐occurrence of both breast cancer and colorectal cancer in the same women, presumably as a result of either shared reproductive hormonal or environmental risk factors. Using data from the Surveillance, Epidemiology, and End Results Program of the National Cancer Institute, the authors investigated whether there is a similar relationship between breast cancer, colorectal cancer, and prostate cancer in men. The observed–expected ratio was not significantly elevated for either colorectal cancer after breast cancer or for breast cancer after colorectal cancer in men. There was an increased incidence of prostate cancer after colorectal cancer, but this relationship was not present in the opposite direction and is believed to result from detection bias. There was an increased incidence of breast and colorectal cancer in women. These results suggest that the observed breast and colorectal cancer relationship in women may be a result of shared reproductive hormonal factors.