Table 3. Comparison of selected clinicopathological parameters between omental and gastric GISTs.

Characteristics	Omentum(n = 99)	Stomach(n = 297)	P value
Age
≤60	53	168	0.599
>60	46	129
Gender
Male	55	155	0.241
Female	38	142
Tumor size
≤2 cm	3	96	<0.001
2.1–5 cm	9	107
5.1–10 cm	19	72
>10 cm	67	22
Histological type
Spindle	42	275	<0.001
Epithelioid	29	3
Mixed	16	19
Mitotic index
≤5	53	163	0.221
>5	32	134
NIH risk category
Very low	2	83	<0.001
Low	5	58
Intermediate	1	87
High	88	69