Table 1. Demographic and clinical characteristics (MMSE: Mini Mental Status Examination; HAM-D: Hamilton Rating Scale for Depression; GDS: Geriatric Depression Scale).

	HC (n = 15)	LLD (n = 10)	P values
Age	71.2±6.8	62.9±2.5	0.001a
Sex (M/F)	7/8	4/6	0.11b
Education	4.3±2.1	14.5±2.6	0.81a
MMSE	29.0± 1.1	28.9 ±1.2	0.83
HAM-D	1.6±1.6	19.6±3.5	<0.001 a
GDS	2.6±3.1	22.2±4.6	<0.001a

^aThe P values were obtained by sample t-test.

^bThe P value was obtained by chi-square test.