Table 1. Demographic and neuropsychological data between the aMCI subjects and the controls.

Item	aMCI (n= 43)	Controls (n= 30)	P
Age (years)	72.00±4.88	72.93±3.93	0.661†
Education level (years)	13.58±3.10	14.98±2.67	0.045†
Gender (male:female)	27:16	17:13	0.601†
Clinical dementia rating (CDR)	0.5	0	-
Mini mental state exam (MMSE)	27.05±1.53	28.2±1.37	0.002*†
Auditory verbal memory test-delayed recall	−0.64±0.57	0.99±0.62	0.000*
Rey-Osterrieth complex figure test-delayed recall	−0.26±0.96	0.44±0.91	0.003*
Trail making test (TMT)-A	0.25±1.03	−0.37±0.85	0.009*
TMT-B	0.22±1.11	−0.41±0.60	0.006*
Symbol digit modalities test	−0.24±0.94	0.39±0.96	0.007*
Clock drawing test	−0.23±1.14	0.29±0.70	0.032*
Digit span test	−0.13±0.93	0.23±0.99	0.119

Values are the mean ± (SD);

^†Notes: P-values were obtained using Mann-Whitney U-tests because the neuropsychological data were not normally distributed. Other P-values were obtained using independent-samples T-tests

^*indicates significant differences between groups, P < 0.05.