Association between autoimmune gastritis and gastric polyps: Clinical characteristics and risk factors

Table 3 Pathological characteristics and distribution of gastric polyps

Pathology	HPs	Fundic polyps	gNET	Adenomas/LGD	Adenocarcinoma
Patients (n)	109	18	17	6	16
Polyps (n)	295	54	50	11	23
Diameter (mm), median (IQR)	5 (2-30)	2.5 (2-20)	5 (2-15)	12.5 (4-25)	20 (7-50)
Median number (IQR)	2 (1-3)	1.5 (1-3)	3 (1-4)	1 (1-3)	1 (1-1.25)
Single	49	9	6	5	12
Multiple	60	9	11	1	4
Distribution
Fundus	34	49	1	1	0
Corpus	223	5	48	4	13
Caria	10	0	0	1	1
Antrum	28	0	1	0	9
OLGA (0/I/II/III/IV)	6/18/28/43/14	4/7/2/4/1	0/2/2/10/3	0/3/1/1/1	1/4/6/3/2
OLGIM (0/I/II/III/IV)	26/39/29/13/3	7/6/3/2/0	3/6/3/5/0	1/4/0/0/4	1/9/4/1/1
ECL hyperplasia
Absent	61	12	0	4	9
Linear	22	1	0	2	4
Micronodular	19	3	0	0	3
Macronodular	7	2	0	0	0
gNET	0	0	17	0	0

HP: Helicobacter pylori; gNET: Gastric neuroendocrine tumor; LGD: Low-grade glandular dysplasia; IQR: Interquartile range; OLGA: Operative Link for Gastritis Assessment; OLGIM: Operative Link on Intestinal Metaplasia Assessment; ECL: Enterochromaffin-like.