Table. 6. Improvement of KWOMAC in each group and comparison of KWOMAC among groups.

	Experimental group			Control groupⅠ			Control groupⅡ			Among Groups
	MEAN ± SD	t	p*	MEAN ± SD	t	p*	MEAN ± SD	t	p*	f	p**
△W1 - 2	16.63 ± 13.24	5.022	0.000*	10.59 ± 14.65	2.980	0.000*	10.94 ± 14.52	3.013	0.009*	0.927	0.403**
△W1 - 3	24.56 ± 15.74	6.242	0.000*	25.47 ± 15.25	6.887	0.009*	17.56 ± 9.62	7.303	0.000*	1.678	0.198**
△W1 - 4	36.44 ± 13.84	10.53	0.000*	32.24 ± 16.88	7.875	0.000*	35.25 ± 15.14	9.312	0.000*	0.298	0.744**

Values are numbers or means ± SDs.

*using paired t-test, p< 0.05

**using Repeated ANOVA test, p< 0.05

△W1-2:KWOMAC at Basement-KWOMAC at before 5th treatment

△W1-3:KWOMAC at Basement-KWOMAC at before 9th treatment

△W1-4 :KWOMAC at Basement- KWOMAC at 4 weeks after 9th treatment