Table IV.

Relationship between MMP-2 expression and MRI features of the patients.

			MMP-2 expression
Items	Indexes	n (104)	Negative (n=28)	Positive (n=76)	χ2	P-value
Tumor signal					4.76	0.026
	Uniform	36	10	26
	Non-uniform	68	18	50
Tumor diameter					5.25	0.017
	≤3 cm	37	9	28
	>3 cm	67	19	48
Peritumoral edema					8.35	0.023
	Mild	44	13	31
	Moderate to severe	60	15	45
Degree of enhancement					5.04	0.008
	Mild	38	12	26
	Moderate to severe	66	16	50
Pathological grade					11.42	0.015
	I–II	26	4	22
	III	46	16	30
	IV	32	8	24

MMP-2, matrix metalloproteinase-2.