Table 1.

Group comparison of demographic, clinical, and neuropsychological variables.

Variables	HC (n = 15)	MDD (n = 12)	P-value
	Mean ± SD	Mean ± SD
Age	25.80 ± 5.89	29.50 ± 8.46	0.088
Education (years)	14.80 ± 2.83	14.00 ± 3.77	0.094
Gender ratio (M: F)	7/8	5/7	0.841
BDI	4.27 ± 4.23	26.17 ± 12.65	<0.001**
SDS	36.54 ± 5.74	64.08 ± 12.60	<0.001**
HAMD-24	NA	25.17 ± 5.18
Number of previous episodes	NA	1 in 9/12 patients 2 in 2/12 patients 3 in 1/12 patients
BIS	14.87 ± 2.13	16.67 ± 2.39	0.049*
BASD	12.53 ± 2.59	10.42 ± 2.31	0.036*
BASR	14.53 ± 1.19	12.50 ± 1.93	0.002**
BASF	14.80 ± 2.18	14.08 ± 1.62	0.352

^*P < 0.05.

^**P < 0.01; NA, not applicable.