The Coexistence of Colorectal Polyps in the Right Colon Increases the Malignant Risk of Laterally Spreading Tumors

Table 1

The baseline clinicopathological factors of the enrolled subjects.

Characteristics		Nonpolyps ()	Polyps ()	value
Gender				0.005
Male	114	38	76
Female	92	49	43
Age (year)				0.239
≤44	9	7	2
≤49	6	3	3
50–75	169	70	99
≥76	22	7	15
Tumor diameter (cm)				0.001
<2	65	28	37
<3	65	26	39
<4	45	13	32
<5	16	14	2
≥5	15	6	9
Location				0.439
Ileocecal valve	28	10	18
Ascending colon	54	26	28
Hepatic flexure	16	8	8
Right transverse colon	12	4	8
Left transverse colon	32	8	24
Splenic flexure	2	1	1
Descending colon	9	3	6
Sigmoid colon	20	10	10
Rectum	33	17	16
Morphological type				0.070
G-H	27	12	15
G-M	92	47	45
NG-FE	56	20	36
NG-PD	31	8	23
Pathomorphism				0.013
Hyperplastic	14	5	9
Tubular	148	58	90
Tubulovillous	17	5	12
Serrated adenoma	27	19	8
Histological type				0.845
Hyperplastic	14	5	9
Low grade	157	67	90
High grade	23	11	12
Carcinoma	11	3	8
History of polyps				<0.0001
No	132	75	57
Yes	74	12	62