Table-II.

Relationships between COX-2, GLUT-1 and VEGF expressions and clinical characteristics(n).

Variable	Case No.	COX-2 positive rate (n=33)	GLUT-1 positive rate (n=42)	VEGF positive rate (n=38)
Staging
Stage I	34	16 (47.1%)	22 (64.7%)	16 (47.1%)
Stage II	20	12 (60.0%)	14 (70.0%)	16 (80.0%)
Stage III	6	5 (83.3%)	6 (100.0%)	6 (100.0%)
Degree of differentiation
High	21	8 (38.1%)	12 (57.1%)	10 (47.6%)
Moderate	19	10 (52.6%)	11 (57.9%)	12 (63.2%)
Low	20	15 (75.0%)	19 (95.0%)	16 (80.0%)
Lymphatic metastasis
Without	45	20 (44.4%)	28 (62.2%)	26 (57.8%)
With	15	13 (86.7%)	14 (93.3%)	12 (80.0%)