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
'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.