Table 2.

Comparison of PLI and GI between the two groups of patients (mean ± standard deviation).

Items	Groups	Before intervention	3 months after intervention	6 months after intervention
PLI (points)	Control (n = 68)	2.41 ± 0.43	1.89 ± 0.31*	2.10 ± 0.35*
	Intervention (n = 68)	2.38 ± 0.51	1.68 ± 0.32*	1.81 ± 0.37*
t		0.370	3.886	4.695
p		0.711	0.000	<0.001
GI (points)	Control (n = 68)	2.01 ± 0.46	1.56 ± 0.36*	1.79 ± 0.41*
	Intervention (n = 68)	1.98 ± 0.44	1.29 ± 0.41*	1.41 ± 0.37*
t		0.388	4.080	5.674
p		0.698	0.000	<0.001

* meant compared with before intervention, p < 0.05.