Table 3.

Mean ± standard deviation of C-ERRI scores in the intervention and control groups at pre-intervention and 6 wk post-intervention.

	Group	Samples	Before intervention	After intervention	t	P
Intrusive rumination	Intervention group	45	14.53 ± 2.12	8.16 ± 2.35	21.36	<.001
	Control group	45	15.04 ± 2.11	14.42 ± 2.04	1.80	.079
	t		−1.15	−13.50
	P		.25	<.001
Purposeful rumination	Intervention group	45	10.78 ± 2.32	24.60 ± 2.16	−43.21	<.001
	Control group	45	11.00 ± 2.48	13.02 ± 2.46	−6.08	<.001
	T		−0.44	23.72
	P		.66	<.001
Total rumination score	Intervention group	45	25.31 ± 2.24	32.76 ± 3.01	−16.22	<.001
	Control group	45	26.04 ± 2.42	27.44 ± 2.32	−3.02	.004
	t		−1.50	9.38
	P		.14	<.001

C-ERRI = Chinese Version of the Event-Related Rumination Inventory