Letters Section Editor: Robert M. Golub, MD, Senior Editor.
To the Editor: In their study of the risk of colorectal cancer (CRC), Dr Singh and colleagues1 conclude that in persons who undergo a colonoscopy during which no neoplastic lesions are identified, “the risk of developing CRC is at most 60% to 70% of the risk of developing CRC in the general population,” although the size of risk reduction “may not be as great as previously suspected.”
Weiss NS, Doria-Rose VP. Colorectal Cancer Risk Following a Negative Colonoscopy. JAMA. 2006;296(20):2436-2438. doi:10.1001/jama.296.20.2436-b