TABLE 3.

Mean differences of the pre- and post-test in Visual Analogue Scale and Western Ontario and McMaster Universities Osteoarthritis Index scores.

Variable	Mean differences
	Mean	SD	SEM	95% confidence interval of the difference		p	Effect size
				Lower	Upper
VAS pre-intervention	3.722	2.445	0.576	2.506	4.938	0.042	0.71
VAS_post-intervention
WOMAC_pre-intervention	29.500	15.508	3.655	21.788	37.212	0.591	0.79
WOMAC_post-intervention
Subscales of WOMAC
Pain pre-intervention	6.333	3.742	0.882	4.473	8.194	0.159	0.75
Pain post-intervention
Stiff pre-intervention	2.667	1.372	0.323	1.984	3.349	0.093	0.8
Stiff post-intervention
ADL_pre-intervention	20.500	11.597	2.734	14.733	26.267	0.052	0.77
ADL_post-intervention

SD, standard deviation; SEM, standard error of the mean; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.