Table 1: Demographic characteristics of the study subjects
| Control n (%) | aMCI n (%) | |
| Total | 179 | 63 |
| Female | 96 (53.6) | 35 (55.6) |
| Male | 83 (46.4) | 28 (44.4) |
| Age (years) | 78.2 ± 8.7 | 77.4 ± 9.3 |
| Education (years) | 13.2 ± 3.6 | 12.8 ± 5.1 |
| Clinical dementia rating (CDR) | 0 | 0.5 |
| Mini mental state exam (MMSE) | 28.2 ± 2.5 | 25.6 ± 1.4* |
| Activities of daily living (ADL) | 15.1 ± 0.5 | 15.3 ± 0.8 |
| Auditory verbal learning test delayed recall | 8.01 ± 1.42 | 3.14 ± 1.85* |
| Rey-Osterrieth complex figure test delayed recall | 17.9 ± 6.1 | 10.4 ± 7.8* |
| Trail making test A (seconds) | 70.6 ± 25.7 | 90.8 ± 29.4* |
| Trail making test B (seconds) | 140.2 ± 40.1 | 181.6 ± 63.7* |
| Clock drawing test | 9.6 ± 0.9 | 8.1 ± 1.5* |
Note: data are presented as mean ± SD. *indicates had statistical difference between aMCI and control group, P value < 0.05, Mann-Whitney U test.