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Joseph V. Selby, MD, MPH; Gary D. Friedman, MD

JAMA. 1989;261(4):594-601.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

PERIODIC screening sigmoidoscopic examination of asymptomatic persons has been recommended for more than 30 years^1-3 as a means of reducing mortality from colorectal cancer. However, evidence supporting this recommendation is limited and expert opinion, as reflected in several recent reviews,^4-8 differs as to whether sigmoidoscopy should be included in the periodic health examination. Colorectal cancer, with a cumulative incidence of 5.1% in men and 3.9% in women by age 74 years,⁹ is the second leading cause of cancer mortality in the United States. More than 145 000 new cases and 61000 deaths from this disease are expected for 1987.¹⁰ Thus, screening tests that can lead to earlier detection and improved survival are needed. In addition to earlier detection, screening sigmoidoscopy may reduce the incidence of colorectal cancer through removal of premalignant adenomatous polyps.

In evaluating sigmoidoscopy as a screening test, it is important to distinguish between . . . [Full Text PDF of this Article]

Author Affiliations
From the Division of Research, Kaiser Permanente Medical Care Program, Oakland, Calif.

Footnotes
Reprint requests to Division of Research, Kaiser Permanente Medical Care Program, 3451 Piedmont Ave, Oakland, CA 94611 (Dr Selby).

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