Table 1

Demographic information of patients with selected colorectal polyps

GroupMedian age (range)Women (%)Men (%)No of patientsNo of specimens
SSA–61 (23 to 90)968 (55.3)848 (44.7)18162077
SSA-LD66 (31 to 95)147 (57.2)110 (42.8)257271
SSA-HD72 (50 to 87)31 (68.9)14 (31.1)4547
SSA-CA76 (61 to 88)16 (76.2)5 (23.8)2121
HP59 (9 to 104)30458 (47.5)33636 (52.5)6409477891
TSA63 (23 to 92)355 (50.9)343 (49.1)698711
TSAHD65 (53 to 78)8 (72.7)3 (27.3)1111
TA62 (6 to 106)31841 (42.2)43648 (57.8)75489105308
TVA/VA64 (17 to 99)2991 (45.2)3625 (54.8)66167554
TAHD66 (37 to 92)351 (41.0)506 (59.0)857969
TVAHD/VAHD65 (25 to 94)478 (45.2)580 (54.8)10581144
ADENOCA67 (24 to 99)940 (44.3)1181 (55.7)21212190
MHAP63.5 (32 to 88)106 (44.5)132 (55.5)238241
MHAPHD69 (51 to 80)1 (16.7)5 (88.3)67
  • ADENOCA, adenocarcinoma without evidence of precursor sessile serrated adenoma; HP, hyperplastic polyp; MHAP, mixed hyperplastic-adenomatous polyp; MHAPHD, mixed hyperplastic-adenomatous polyp with high-grade dysplasia; SSA–, sessile serrated adenoma without dysplasia; SSA-CA, adenocarcinoma arising in a sessile serrated adenoma; SSA-HD, sessile serrated adenoma with high-grade dysplasia; SSA-LD, sessile serrated adenoma with low-grade dysplasia; TA, tubular adenoma; TA-HD, tubular adenoma with high-grade dysplasia; TSA, traditional serrated adenoma; TSA-HD, traditional serrated adenoma with high-grade dysplasia; TVA/VA, tubulovillous and villous adenomas; TVA-HD/VA-HD, tubulovillous and villous adenomas with high-grade dysplasia.