Why is this test so important?

The American Cancer Society estimates that 149,000 people developed colorectal cancer in 1994. When colorectal cancer is detected in an early, localized stage up to 92% of colon and 82% of rectal cancers can be treated successfully. A 13-year study of 46,551 participants ages 50 to 80 showed that annual fecal occult blood testing and colonscopic follow-up of patients with positive test results reduced mortality from colorectal cancer by at least 33%.*

When cancer is detected after symptoms appear and it has spread to other parts of the body, fewer than 7% may be treated successfully. This means that earlier detection could save thousands of lives each year.

As a patient, you should be aware that results from a fecal occult blood test cannot be considered conclusive evidence of the presence or absence of gastrointestinal bleeding or disease. Fecal occult blood tests are designed for preliminary screening as an aid to diagnosis and are not intended to replace other diagnostic procedures. Persons with persistent symptoms should consult with their physician for further diagnostic testing.

* Mandel JS, Bond JH, Church TR, et al. Reducing mortality from colorectal cancer by screening for fecal occult blood. NEIM.1993; 328:1365-1371.

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