Table 3.

Mean values of QOL for the intervention and control groups

Variable	Baseline	3 months	P-value**	6 months	P-value**	9 months	P-value**	P-value*
QOL (Quality of Life): self-rated health (the five methods)
Intervention (n = 42)	3.14 ± 0.78	3.81 ± 0.80	0.001*	3.50 ± 0.74	0.078	3.36 ± 0.66	0.415	0.022*
Control (n = 47)	3.23 ± 0.84	3.30 ± 0.81	0.970	3.23 ± 0.91	1.000	3.23 ± 0.91	1.000

NOTE: Values expressed as number of health improvement points

*P-values describe the time × group interaction effect

**P-values describe Dunnett’s multiple comparison test