In a large, randomized, controlled trial conducted in the UK, screening flexible sigmoidsocopy led to substantial reductions in the incidence of and mortality from distal colorectal cancer. Both fecal occult blood testing and flexible sigmoidoscopy screening are now proven to reduce colorectal cancer mortality.
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D. K. Rex declares an association with Olympus America. He is a speaker for Olympus America and has received grant and research support from Olympus America.
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Rex, D. Screening flexible sigmoidoscopy effective in a UK RCT. Nat Rev Gastroenterol Hepatol 7, 423–424 (2010). https://doi.org/10.1038/nrgastro.2010.111
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DOI: https://doi.org/10.1038/nrgastro.2010.111