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Previous Volume 359:2611-2612 December 11, 2008 Number 24 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: The rate of 1.3% for advanced adenoma detected approximately 5 years after a negative colonoscopy, is indeed low, as Imperiale et al. report (Sept. 18 issue).¹ The rate for detection of any adenoma was 16.0%. What is striking is the low proportion of patients with advanced adenoma relative to the proportion of patients with any adenoma (8.1%). Numerous factors may have contributed to this low observed rate, including a low risk of this condition in the study population, low rates of detection by endoscopists, and low rates observed by pathologists.

In the Study of Colonoscopy Utilization, an . . . [Full Text of this Article]

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