Table 1 Demographic and neuropsychological data between aMCI group and healthy control group

Gender (male: female)

28:19

18:15

0.654○

Age (years)

71.957 ± 4.777

72.848 ± 3.392

0.662△

Education levels (years)

15.894 ± 11.429

14.742 ± 2.889

0.124△

Clinical dementia rating (CDR)

0.5

0

—

Mini mental state exam (MMSE)

26.979 ± 1.525

28.182 ± 1.334

0.001*△

Auditory verbal learning test delayed recall

2.894 ± 1.747

7.970 ± 1.845

0.000*△

Rey-Osterrieth complex figure test delayed recall

10.787 ± 7.395

16.578 ± 7.009

0.002*△

Trail making test A (seconds)

94.404 ± 34.518

73.818 ± 29.591

0.006*△

Trail making test B (seconds)

189.447 ± 77.565

139.849 ± 43.953

0.003*△

Symbol digit modalities test

26.575 ± 9.930

34.000 ± 10.161

0.003*△

Clock drawing test

8.192 ± 1.676

9.000 ± 1.047

0.011*△

Digit span test

12.106 ± 2.119

13.091 ± 2.127

0.027*△