Significance of vascular endothelial growth factor expression and its correlation with inducible nitric oxide synthase in gastric cancer

Table 2 Relationship between expression of VEGF₁₆₅mRNA and clinical pathological features in gastric cancer tissue

Variable	No.	Expression of VEGF (mean ± SD)
Age (yr)			NS
< 55	16	1.139 ± 0.393
> 55	15	1.139 ± 0.393
Sizes of tumor			NS
2 cm	2	0.993 ± 0.271
2-3 cm	6
> 3 cm	23	1.171 ± 0.375
Histological type			NS
Well differentiated	10	0.979 ± 0.339
Moderate or poorly differentiated	21	1.1937 ± 0.350
Lymph node metastasis			0.03
Positive	21	1.219 ± 0.377
Negative	10	0.927 ± 0.205
Stage of UICC			0.009
I	8	0.934 ± 0.194
II	5
III	13	1.262 ± 0.386
IV	5

NS: Not significant.