Immunohistochemical expression of matrix metalloproteinase-9 and 13 in oral squamous cell carcinoma and their role in predicting lymph node metastasis

Table 6 Comparison of matrix metalloproteinase-9 and matrix metalloproteinase-13 expression

Metastasis	MMP-9			MMP-13			Intense
	Mild	Moderate	Intense	Nil	Mild	Moderate
Absent	1	5	12	2	2	6	8
	5.6%	27.8%	66.7%	11.1%	11.1%	33.3%	44.4%
Present	0	6	16	1	7	5	9
	0.0%	27.3%	72.7%	4.5%	31.8%	22.7%	40.9%
Total	1	11	28	3	9	11	17
	2.5%	27.5%	70.0%	7.5%	22.5%	27.5%	42.5%

MMP: Matrix metalloproteinase.