Table 3.

Comparison to the levels of inflammatory factors between the two groups before and after treatment ($\overline{X}$$\pm$ s, pg/mL)

Groups	MMP-3		TIMP-1		TNF-$\alpha$		IL-1
	Before	After	Before	After	Before	After	Before	After
Observation group ($n=$ 152)	233.27 $\pm$ 25.43	120.64 $\pm$ 17.12	734.52 $\pm$ 54.08	658.53 $\pm$ 48.32	69.09 $\pm$ 18.65	35.14 $\pm$ 7.87	187.65 $\pm$ 35.87	83.09 $\pm$ 10.07
Control group ($n=$ 144)	229.51 $\pm$ 26.44	146.39 $\pm$ 26.77	730.73 $\pm$ 58.35	686.09 $\pm$ 37.54	68.54 $\pm$ 20.71	42.09 $\pm$ 9.09	179.61 $\pm$ 45.98	94.76 $\pm$ 10.53
$T$ value	1.247	9.912	0.580	5.459	0.240	7.043	1.682	9.746
$P$ value	0.213	0.000	0.562	0.000	0.810	0.000	0.094	0.000