Table 2.

Demographic and clinical data (mean ± SD)

	study group	control group	t/χ2value	P
	(n = 39)	(n = 41)
Demographics
Gender (M/F)	13/26	12/29	0.15	0.70
Age (year)	15.3 ± 2.5	14.9 ± 2.4	0.73	0.47
Education (year)	7.2 ± 2.3	7.1 ± 2.2	0.20	0.84
Clinical characteristics
Mean episode duration(year)	0.7 ± 1.8	0.6 ± 2.0	0.23	0.82
ASLEC	41.5 ± 10.3	39.9 ± 11.2	0.66	0.51
IES-R	19.6 ± 3.6	18.9 ± 4.4	0.78	0.44
HAMD-17	22.3 ± 3.9	21.8 ± 3.6	0.60	0.55
HAMA	18.8 ± 3.4	19.7 ± 4.3	1.04	0.30
Medication
Escitalopram (mg/qd)	13.4 ± 3.5	14.1 ± 3.7	0.87	0.39

Note ASLEC: Adolescent Self-Rating Life Events Checklist; IES-R: Impact of Event Scale-Revised; HAMD-17: 17-item Hamilton Depression Scale; HAMA: Hamilton Scale