| Group | Mean | SD |
| Attention | ||
| HC | 1.358 | 0.683 |
| MCI | 0.208 | 0.744 |
| VD | −0.774 | 0.650 |
| p value | <0.0001 | 0.781 |
| Processing speed | ||
| HC | 1.248 | 0.676 |
| MCI | 0.230 | 0.775 |
| VD | −0.748 | 0.714 |
| p value | <0.0001 | 0.875 |
| Memory | ||
| HC | 1.410 | 0.781 |
| MCI | 0.109 | 0.663 |
| VD | −0.672 | 0.808 |
| p value | <0.0001 | 0.737 |
| Language | ||
| HC | 0.749 | 0.171 |
| MCI | 0.235 | 0.666 |
| VD | −0.577 | 1.220 |
| p value | <0.0001 | <0.001 |
| Visuoconstruction | ||
| HC | 1.204 | 0.629 |
| MCI | 0.363 | 0.725 |
| VD | −0.909 | 0.534 |
| p value | <0.0001 | 0.160 |
| Executive function | ||
| HC | −1.510 | 0.353 |
| MCI | −0.114 | 0.719 |
| VD | 0.716 | 0.737 |
| p value | <0.0001 | 0.344 |
| Fluency | ||
| HC | 1.396 | 0.952 |
| MCI | 0.071 | 0.626 |
| VD | −0.619 | 0.840 |
| p value | <0.001 | 0.368 |
| Across Domains | ||
| HC | 1.268 | 0.660 |
| MCI | 0.190 | 0.699 |
| VD | −0.716 | 0.801 |
| p value | <0.0001 | 0.112 |