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What Colon Cancer Test Is Best for Women?

Colonoscopy Identifies More Cancers in Women, Researchers Say

Outcome in Men

Researchers had previously done a similar estimate on men. That study affirmed colonoscopy's superiority.

However, the men's study showed that sigmoidoscopy would have identified cancer and polyps in a greater percentage of affected participants (66%), say Schoenfeld and colleagues.

"We found that almost twice as many cases of advanced colorectal neoplasia were detected in the men," write the researchers. "Flexible sigmoidoscopy appears to be a much more effective screening tool in men than women."

'Preferred' Screening Method for Women

"On the basis of these data, we believe that colonoscopy is the preferred method of screening for colorectal cancer in women, and that flexible sigmoidoscopy is an inadequate method of predicting advanced neoplasia in the proximal colon in women," write researchers.

The men's results came from the Veterans Affairs Cooperative Study 380. The women's study included women from four military medical centers.

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