TABLE 3.
General characteristics.
| NC (N = 20) | MCI (N = 21) | AD (N = 20) | χ2/t/F | p | ||
| Age (years) | 73.30 ± 9.02 | 71.67 ± 6.65 | 75.35 ± 8.80 | 1.036 | 0.361 | |
| Duration of disease | – | 1.74 ± 0.44 | 2.78 ± 0.60# | 6.382 | <0.001 | |
| Sex [n (%)] | Male | 4 (20) | 9 (42.9) | 6 (30) | 2.514 | 0.285 |
| Female | 16 (80) | 12 (57.1) | 14 (70) | |||
| Duration of education [n (%)] | Primary school | 5 (25) | 2 (9.5) | 1 (5) | 4.097 | 0.664 |
| Junior high | 9 (45) | 13 (61.9) | 13 (65) | |||
| Senior high | 4 (20) | 4 (19) | 4 (20) | |||
| University | 2 (10) | 2 (9.5) | 2 (10) | |||
| Hypertension [n (%)] | Yes | 11 (55) | 12 (57.1) | 11 (55) | 0.026 | 0.987 |
| No | 9 (45) | 9 (42.9) | 9 (45) | |||
| Diabetes Mellitus [n (%)] | Yes | 11 (55) | 7 (33.3) | 8 (40) | 2.050 | 0.359 |
| No | 9 (45) | 14 (66.7) | 12 (60) | |||
| History of smoking [n (%)] | Yes | 7 (35) | 5 (23.8) | 5 (25) | 0.760 | 0.684 |
| No | 13 (65) | 16 (76.2) | 15 (75) |
NC, normal cognition; MCI, mild cognitive impairment; AD, Alzheimer’s disease. #p < 0.05 vs. MCI group.