May 22, 2012
Blacks and Latinos Have Higher Colon Cancer Risk
African Americans and Latinos are far more likely than
whites to develop polyps in the colon that can lead to cancer, according to a
study published in the journal Alimentary Pharmacology and Therapeutics and
reported by Columbia University Medical Center.
A polyp in the colon is called a colorectal polyp. It is a
growth along the lining of the colon or rectum and is usually benign, but some can
lead to cancer.
For the study, researchers at Columbia University examined
data from more than 5,000 men and women older than 50 who received a first-time
colonoscopy screening at New York-Presbyterian Hospital/Columbia University
Medical Center in New York City between 2006 and 2010. None of the study
participants had signs or symptoms of colorectal cancer.
Scientists found that doctors detected precancerous polyps
in 26 percent of blacks, 22 percent of Latinos and 19 percent of whites. Findings
also showed that blacks and Latinos were more likely to develop polyps in the
upper part of the colon.
“These lesions would have been missed had these patients
undergone sigmoidoscopy, which examines only the lower half of the colon,” said
Benjamin Lebwohl, MD, MS, an assistant professor of clinical medicine and
epidemiology at Columbia, and the lead study author. “Therefore, colonoscopy,
which examines the entire colon, may be preferable to sigmoidoscopy as a
screening test for blacks and Hispanics.”
These findings are contrary to current statistics that showed
minorities have a lower rate of colon cancer than whites.
What this means, Lebwohl said, is that doctors need to
redouble their efforts to increase colon cancer screening in areas with large
numbers of racial and ethnic minorities.
Did you know more blacks die of colon cancer than their
white counterparts? Click here to learn more.
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