"At each stage, cancer researchers are puzzled by the worse outcomes of ethnic minorities such as African Americans and Asians when compared to those of Caucasians," Braiteh said. "It is not exclusively explained by health services disparities, and point to possible underlying biological differences among colon cancers."
The study and an accompanying report were released by American Cancer Society researchers as part of a new effort by the National Colorectal Cancer Roundtable to increase screening rates to 80 percent by 2018.
The U.S. National Cancer Institute has more about colorectal cancer screening.
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