Prognostic angiogenic markers (endoglin, VEGF, CD31) and tumor cell proliferation (Ki67) for gastrointestinal stromal tumors

Table 1 Association among vascular endothelial growth factor, Ki67 and survival status

Immunomarkers	Alive without recurrence	Recurrence/death	P value
VEGF
Null/weakly1	18	3
Moderate/strongly1	15	18	0.0022
Ki67
< 5%	29	2
≥ 5%	4	19	< 0.0013

¹Positive;

²Fisher exact test,

³Student’s t-test. VEGF: Vascular endothelial growth factor.