Table 4.

Expression of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) by tumor type and pathologic grade

	Tumor	Type		Pathologic	Grade
	Clear cell	Non-clear cell	P value	High	Low	P value
MMP-2	0.741 ± 0.064	0.699 ± 0.078	NS	0.722 ± 0.056	0.796 ± 0.095	NS
MMP-9	0.730 ± 0.086	0.623 ± 0.069	NS	0.685 ± 0.062	0.749 ± 0.090	NS
MT1-MMP	0.478 ± 0.036	0.393 ± 0.029	NS	0.451 ± 0.042	0.485 ± 0.031	NS
TIMP-1	0.369 ± 0.051	0.390 ± 0.034	NS	0.394 ± 0.046	0.319 ± 0.040	NS
TIMP-2	0.388 ± 0.029	0.379 ± 0.023	NS	0.383 ± 0.014	0.395 ± 0.017	NS

NS, not significant.