Background: Fecal occult blood testing (FOBT) is one method to screen for colorectal cancer and to assess for gastrointestinal bleeding in hospitalized patients. Differences in the analytical sensitivity among various methods may have significant clinical repercussions.
Methods: We evaluated the analytical performance of 5 different FOBT methods (standard guaiac-based method and four immunochemical methods) using patient samples and spiked stool specimens.