Cancers of the colon and rectum together are among the most common cancers
affecting Americans, according to the National Cancer Institute. They occur most often in people over 50 years
old. Test your knowledge of colorectal cancer by taking this multiple-choice quiz.
How curable is colorectal cancer?
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This means that 91 percent of patients treated when their cancer is found in an early stage are still alive five years later.
Which of these is an early symptom of this cancer?
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There are no early warning signs. Sixty-three percent of people go to the doctor only after the disease has spread.
Which of these population groups are more likely to develop it?
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African Americans and Hispanics are more likely to be diagnosed when the cancer is in advanced stages.
At which age should annual screening begin?
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Three-fourths of new cases occur in people with no known risk factors except that they're 50 or older.
Which tests does the American Medical Association recommend be done annually?