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More Americans Tested for Colon Cancer

CDC: Increase Is Encouraging but There's Still Room for Improvement
By
WebMD Health News
Reviewed by Louise Chang, MD

March 23, 2006 -- More people in the U.S. aged 50 and older are getting tested for colorectal cancer, but those tests are still too rare, the CDC says.

Data came from national surveys done by telephone in 2002 and 2004. The surveys included 111,000 adults aged 50 and older in 2002 and more than 146,700 in 2004.

Colorectal cancer screening was reported by 57.3% of the 2004 participants, compared with 54.4% of those in 2002.

"We are pleased that we were able to see an increase in just two years, and we feel that these are encouraging results but that we still have a ways to go," researcher Laura Seeff, MD, tells WebMD.

Seeff, an internist and medical officer at the CDC, worked on the study, which appears in the CDC's Morbidity and Mortality Weekly Report.

No. 2 Cause of Cancer Deaths

Colorectal cancer is the No. 2 cause of cancer deaths for U.S. adults, killing more than 56,000 people in 2002, according to the CDC.

Removing precancerous polyps (growths) and treating early cancers can make a big difference. "If you remove a polyp, you've prevented the cancer. If you treat an early cancer, a person has a much better chance of survival," Seeff says.

In recent years, data has shown a trend toward more colorectal cancer screening. "I think this is similar to what happened with mammography [in which] the rates crept up slowly and then really jumped up," she says.

"We'd clearly like them to go up higher," Seeff says. "We want to keep attention on this disease."

4 Types of Tests

Different types of colorectal cancer screening tests include:

"There are a number of factors that go into a person selecting which test is best for them," Seeff says. Test availability, cost, insurance coverage, and patient preference are among those factors, she notes.

"Our message is that everybody 50 and up should be getting screened regularly and should speak to their doctor, and through that discussion pick which test is appropriate," Seeff says.

Those with increased risk for colon cancer may start screening before 50.

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