Relationship between co-stimulatory molecule B7-H3 expression and gastric carcinoma histology and prognosis

Table 1 Correlation between tumor B7-H3 expression and pathologic features of gastric carcinoma patients

Features	Total cases (n)	Positive cases (n)	Positive rate (%)
Tumor location
Top 1/3 layer of stomach	31	19	61.2
Middle 1/3 layer of stomach	30	17	56.7
Bottom 1/3 layer of stomach	41	24	58.5
Degree of differentiation
Well-differentiated	72	48	66.7
Poorly-differentiated	30	12	40.0
Infiltration depth without
Infiltration at deep muscular layer	30	23	76.7
With infiltration at deep muscular layer	72	37	51.3
Lymph node metastasis
Negative	54	33	61.1
Positive	48	27	56.3
Survival time
<2 years	51	22	43.1
>5 years	51	38	74.5
Primary tumor size
<5 cm	55	35	63.6
>5 cm	47	25	53.2