Table 1.

Expression of HGF and c-Met protein detected by immunohistochemistry in nasopharyngeal carcinoma (NPC) and control tissues

Group	c-Met expression				Percentage of positive samples	HGF expression				Percentage of positive samples
	-	+	++	+++		-	+	++	+++
Control (n = 115)	92	23	0	0	20.00	45	39	31	0	60.9
NPC (n = 106)	32	12	29	33	69.8	11	35	23	37	89.6
χ2					53.00					63.00
P					< 0.001					< 0.001