Table 2. Clock drawing test performances of the CN, mild cognitive impairment, and mild dementia patient groups.
| Variable | CN (n=45) | aMCI (n=42) | VaMCI (n=41) | AD (n=40) | VaD (n=40) | F | Post-hoc* (Bonferroni) |
|---|---|---|---|---|---|---|---|
| 3-point | 2.87 (0.40) | 2.55 (0.67) | 2.38 (0.71) | 2.15 (0.83) | 1.93 (0.83) | 9.53† | a=b>e, a>c=d=e, b=c=d |
| 5-point | 4.89 (0.32) | 3.76 (0.98) | 4.27 (0.95) | 3.70 (1.07) | 3.20 (1.29) | 17.45† | a>c=b=d, a>c=d>e, e=b |
| 15-point | 14.87 (0.34) | 13.40 (2.21) | 13.68 (2.07) | 12.40 (2.53) | 11.93 (2.81) | 11.60† | a>c=d=e, a>b>e, b=c=d |
CN: cognitively normal older adults, aMCI: amnestic mild cognitive impairment, VaMCI: vascular mild cognitive impairment, AD: Alzheimer's disease, VaD: vascular dementia.
*a: CN, b: aMCI, c: VaMCI, d: AD, e: VaD; †p<0.001.