Table 3.

Comparison of variable with statistically significant interaction effects between the groups during treatment.

Variable	Groups	Number of cases	Before treatment	6 months after treatment	12 months after treatment	F value	P value
BMI/(kg·m-2)	Experimental group	32	27.77 ± 3.25	26.17 ± 2.60*	25.54 ± 2.22*,†	42.011	<.001
	Control group	35	27.74 ± 2.33	27.65 ± 2.33	27.63 ± 2.21	0.129	.813
	t value		0.002	6.026	14.844
	P value		0.966	0.017	<0.001

Note: After correction by Bonferroni method, compare and check the level α′=0.017. BMI = body mass index.

^*Indicates that compared with that before treatment P < .017.

^†Indicates that compared with 6 months after treatment P < .017.