Table 1.

Demographic characteristics and values of serum cortisol of participants.

	Healthy subjects	MDD patients	p-value
	(n = 39)	(n = 42)
Age, years; mean ± SD	43.3 ± 11.6	48.1 ± 14.3	0.1
Male/female	26/13	21/21	0.2
Cortisol level, mean ± SD (nmol/L)	9.6 ± 3.6	12.3 ± 5.1	0.03*

SD, standard deviation, MDD, major depression disorders.

*Significant difference.