Table 2.

Adjusted odds ratio (OR) with 95% confidence interval (CI) and p value for selected tumor and demographic characteristics as indicators of metastatic diseases among GIST patients.

Characteristics	OR	95% CI	p value
Gender			0.124
Female	Reference		1.000
Male	1.146	0.963-1.363	0.124
Insurance			0.094
Yes	Reference		1.000
No	1.475	0.944-2.305	0.088
NOS	0.878	0.706-1.092	0.244
Tumor location			0.001
Large intestine	Reference		1.000
Peritoneum	2.185	1.156-4.131	0.016
Stomach	1.823	1.163-2.855	0.009
Small intestine	2.564	1.607-4.092	<0.001
Esophagus	1.445	0.293-7.120	0.651
Pathologic grade			<0.001
I	Reference		1.000
II	1.071	0.646-1.774	0.791
III	2.518	1.495-4.241	0.001
IV	2.798	1.721-4.551	<0.001
NOS	1.859	1.247-2.771	0.002
Tumor size (cm)			<0.001
≤2	Reference		1.000
2-5	2.366	1.353-4.138	0.003
5-10	3.516	2.040-6.060	<0.001
>10	5.370	3.110-9.272	<0.001
NOS	7.124	4.005-12.671	<0.001
Lymph nodes			<0.001
Negative	Reference		1.000
Positive	6.153	4.531-8.355	<0.001
NOS	3.991	3.035-5.249	<0.001
Extension			<0.001
Mild	Reference		1.000
Grievous	2.886	2.368-3.518	<0.001
NOS	3.991	3.035-5.249	<0.001
Mitotic count			<0.001
≤5/50 HPF	Reference		1.000
>5/50 HPF	1.554	1.207-2.000	0.001
NOS	1.788	1.348-2.372	<0.001

NOS: not otherwise specified.