Table 7.

Correlation of EGFR and COX-2 protein expression

		EGFR		Total
		negative	positive
COX-2	negative	3	2	5
	positive	25	23	48
Total		28	25	53

There was no significant relationship between COX-2 and EGFR. Χ2 = 0.112, P = 0.555.