TABLE 6.

Sex distribution of adenoma location and shape.

	All cases (mean age, 57.35 years)		Men (mean age, 56.79 years)		Women (mean age, 58.35 years)
	N	%	N	%	N	%
All patients with adenomas	9,646	100%	6,205	64.3%	3,441	35.7%
Adenoma location
Proximal	4,240	44.0	2,839	45.75	1,401	40.71
Of those, HGD	47	1.11	28	0.99	29	2.07
Distal	5,406	56.0	3,366	54.25	2,040	59.29
Of those, HGD	172	3.18	110	3.27	62	3.04
Adenoma shape
Pedunculated	2,894	30.00	1,924	31.01	970	28.19
Of those, HGD	98	3.39	67	3.48	31	3.20
Sessile	6,752	70.00	4,281	68.99	2,471	71.81
Of those, HGD	121	1.79	71	1.66	50	2.02
Adenoma shape and location
Proximal pedunculated	1,178	12.21	794	12.80	384	11.16
Of those, HGD	17	1.44	10	1.26	7	1.82
Distal pedunculated	1,716	17.79	1,130	18.21	586	17.03
Of those, HGD	81	6.88	57	5.04	24	4.10
Proximal sessile	3,062	31.74	2,045	32.96	1,017	29.56
Of those, HGD	30	0.98	18	0.88	12	1.18
Distal sessile	3,690	38.25	2,236	36.04	1,454	42.26
Of those, HGD	91	2.47	53	2.37	35	2.41

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