Immunochemical faecal occult blood tests in primary care and the risk of delay in the diagnosis of colorectal cancer

To evaluate the value, risks, and shortcomings of immunochemical faecal occult blood tests (iFOBTs) in the diagnosis of colorectal cancer (CRC) and adenomas with high-grade dysplasia (HGD) in patients initially presenting to primary care.A retrospective population-based study.All 495 cases of CRC and adenomas with HGD diagnosed in the county of Jämtland, Sweden from 2005 to 2009.Of 495 patients 323 (65%) initially presented to primary care....