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Colorectal cancer is the fourth most frequently diagnosed cancer and the second leading cause of cancer death in the United States. In 2009, an estimated 106,100 new cases of colon and 40,870 cases of rectal cancer will occur. During the same year, it is estimated that 49,920 people will die from colon and rectal cancer. 1 Despite these statistics, mortality from colon cancer has decreased slightly over the past 30 years, possibly due to earlier diagnosis through screening and better treatment modalities.
Engstrom et al. (Tue,) studied this question.