Table 1.

Subjects' information.

	Group
	Depression patients
	Healthy	Non-De	Mil-De	Con-De
No.	14	15	34	20
Age (years)	45 ± 15	47 ± 16	42 ± 16	44 ± 15
Education, ≤12 years/≥13 years	3/11	13/2	30/4	14/6
Occupation, yes/no	12/2	12/3	22/12	12/8
Right handedness, yes/no	13/1	14/1	34/0	17/3
Smoking, yes/no	3/11	3/12	3/31	3/17
Depression type, MDD/bipolar disorder	—	13/2	31/3	16/4
HDRS score	—	3.93 ± 2.52	13.17 ± 3.00	20.85 ± 2.20

Data are expressed as number or mean ± standard deviation (std).