[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Citations 0
October 22/29, 2003

Optimal Intervals and Techniques for Screening Sigmoidoscopy—Reply

Author Affiliations

Letters Section Editor: Stephen J. Lurie, MD, PhD, Senior Editor.

JAMA. 2003;290(16):2122-2123. doi:10.1001/jama.290.16.2122-a

To the Editor: Dr Schoen and colleagues1 found that among 9317 individuals who had negative results of a screening sigmoidoscopy, 6 (0.06%) were found to have colorectal cancer by repeated sigmoidoscopy 3 years later. An absolute risk reduction of 0.06% means that 1667 individuals would need to undergo repeat 3-year sigmoidoscopy in order to find 1 case of cancer, assuming none of these cancers would have been discovered by other less invasive methods of screening or by incidental findings.

First Page Preview View Large
First page PDF preview
First page PDF preview