Table 1.

Demographic and clinical characteristic of the samples.

	PSD (n = 26)	Stroke (n = 24)	NC (n = 24)
Age	56.4 ± 10.2	60.2 ± 9.8	57.1 ± 9.5
Gender
Male	20	19	18
Female	6	5	6
HDRS score	12.5 ± 3.87	—	—
Disease period (day)	9.92 ± 2.77	9.62 ± 2.72	—

HDRS: Hamilton Depression Rating Scale. Unless otherwise indicated, data are expressed as the mean ± SD. NC: normal control.