High resolution colonoscopy in a bowel cancer screening program improves polyp detection

Figure 1 Discomfort scores during colonoscopy. The degree of mild discomfort was worse for patients undergoing colonoscopy with Pentax scopes; however, there was no increase in moderate discomfort and no patients suffered severe discomfort with either scope.

Figure 2 Polyp detection rates. More polyps were found with Pentax HiLine colonoscopes than with Olympus Lucera colonoscopes. χ² test for trend P = 0.01.

Figure 3 Sizes of polyps. Box plot demonstrating that the median size of polyps was identical for both hyperplastic and adenomatous polyps for both type of colonoscope. Median, interquartile range, and minimum and maximum polyp sizes are shown for each polyp type and colonoscope.