The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.

Evidence of Benefit ¹

Added text ² to state that a systematic review of guaiac and immunochemical FOBTs commissioned to evaluate the comparative diagnostic performance of the two FOBT test types to inform a decision to introduce screening for CRC in the United Kingdom found no clear performance superiority of either type (cited Burch et al. as reference 29).