Table 3.

Comparison of negative emotions between the two groups (score, x̅ ± sd)

Index		Observation group	Control group	t	P
Case (n)		55	55
SDS score	Before treatment	59.80±4.57	60.71±5.62	0.829	0.481
	After treatment	39.25±5.00	45.68±4.47	7.280	<0.001
SAS score	Before treatment	61.45±4.23	61.79±3.91	0.751	0.562
	After treatment	44.16±4.02	54.28±3.89	7.994	<0.001

Note: SDS: Self-Rating Depression Scale. SAS: Self-Rating Anxiety Scale.