Colorectal cancer screening by guaiac faecal occult blood test in France: Evaluation of the programme two years after launching.

Background: The French national screening programme for colorectal cancer (CRC) was rolled out nationwide from 2008. It targets men and women aged 50-74 who are invited every 2 years to perform a guaiac faecal occult blood test, followed, if positive, by a colonoscopy. This paper presents the evaluation of the programme for the 46 French districts that conducted a comprehensive screening campaign during 2008-2009, targeting 9.