Table 3. Comparison of WHOQOL-BREF scale scores (Mean scores±S).

	Psychological function		Physiological function		Social function		Daily activities
Group	Before treatment	After 6 months of treatment	Before treatment	After 6 months of treatment	Before treatment	After 6 months of treatment	Before treatment	After 6 months of treatment
Control group (n=51)	57.76±8.67	69.26±11.24***	59.34±9.37	70.26±10.49***	61.51±10.65	72.36±12.26***	54.32±9.16	66.37±13.34***
Study group (n=51)	58.86±9.31	76.37±12.27***	60.08±10.05	78.85±11.37***	62.37±11.29	81.36±13.37***	56.29±10.87	73.64±14.29***
t	0.617	3.051	0.385	3.965	0.396	3.543	0.990	2.656
p	0.539	0.003	0.701	0.000	0.693	0.001	0.325	0.009

^***indicates p<0.001 compared with the scores before treatment within the same group.