Table 3.

Frequencies of endoscopic features predictive of adenomatous and non-adenomatous polyps

	Adenomatous polyps	Non-adenomatous polyps
Features predictive of adenomas
Reddish	62.6%	2.6%
Different adjacent mucosa	74.7%	11.7%
Clearly demarcated	72.5%	33.1%
Oval, tubular or branched pits	71.7%	11.0%
Thick vessels	40.9%	8.4%
Features predictive of non-adenomas
Pale	32.3%	92.9%
Similar adjacent mucosa	22.5%	85.7%
Indiscrete borders	26.0%	65.6%
Round pits of uniform size, no definite pits	18.9%	73.4%
Isolated, lacy vessels	42.9%	87.0%
Features unclear
Color	5.1%	4.5%
Adjacent mucosa	2.8%	2.6%
Demarcation	1.5%	1.3%
Surface pattern	9.3%	15.6%
Vessel pattern	16.2%	4.5%