Fecal-based DNA assays: a new, noninvasive approach to colorectal cancer screening.

Stool-based DNA testing is a new, noninvasive method of colorectal cancer screening. Because it is easier to use and more sensitive than fecal occult blood testing, physicians may be more likely to recommend it, and patients may be more apt to comply. Although it is expensive, initial assessments show it to be cost-effective.