Table 1.

Comparison of PTSD scores between treatment group and control group before and after treatment (x ± s).

	treatment group (n = 30)	control group (n = 30)	t	P
Before treatment	49.67 ± 9.46	50.37 ± 8.48	0.273	0.787
1 month	46.33 ± 8.84	51.03 ± 7.67	1.939	0.062
2 months	42.30 ± 8.12	49.83 ± 7.42	3.248	0.003**
3 months	37.43 ± 7.27	48.2 ± 6.65	5.45	0.000**

**P < 0.01.