TABLE 3.

Size distribution of adenoma shape.

Polyp	Polyp shape
	Pedunculated			Sessile			Flat
	N	Of those, HGDs	HGD (%)	N	Of those, HGDs	HGD (%)	N	Of those, HGDs	HGD (%)
Size
<0.5	256	0	0.00	1,254	1	0.08	1,317	1	0.08
0.5–1	1,507	11	0.73	1,982	8	0.40	1,145	5	0.44
1–1.5	676	22	3.25	521	22	4.22	124	2	1.61
1.5–2	276	30	10.87	178	18	10.11	31	4	12.90
2–3	139	25	17.99	111	18	16.22	10	4	40.0
>3	40	10	25.00	68	30	44.12	11	8	72.73
All cases	2,894	98	3.39	4,017	97	2.41	2,614	24	0.92

HGD, high-grade dysplasia. Distal = descending colon, rectum, and sigmoid colon; proximal = above the descending colon.