TABLE 3.
Neuropsychological performance in the NC and AD groups.
| NC | AD | p-value | |
| Attention | |||
| Digit span forward | –0.41 (0.82) | –0.41 (1.06) | 0.995 |
| Digit span backward | –0.35 (0.96) | –0.91 (1.01) | 0.067 |
| Language | |||
| K-BNT | –0.66 (1.36) | –2.66 (2.55) | 0.002 |
| Visuospatial function | |||
| RCFT copy | 0.03 (1.08) | –3.36 (6.03) | 0.028 |
| Verbal memory | |||
| SVLT immediate recall | –0.86 (0.82) | –2.05 (1.16) | <0.001 |
| SVLT delayed recall | –0.86 (0.72) | –2.34 (0.96) | <0.001 |
| SVLT recognition | –0.16 (1.10) | –2.61 (2.23) | <0.001 |
| Visual memory | |||
| RCFT immediate recall | –0.40 (0.92) | –1.71 (0.95) | <0.001 |
| RCFT delayed recall | –0.48 (0.96) | –1.92 (0.89) | <0.001 |
| RCFT recognition | –0.37 (0.86) | –2.14 (1.96) | 0.001 |
| Frontal/executive function | |||
| COWAT phonemic total | –0.58 (1.00) | –1.43 (1.26) | 0.030 |
| Stroop color reading | –0.22 (1.12) | –2.68 (2.97) | 0.012 |
Age- and education-specific Z-scores were used to compare neuropsychological performance between the NC and AD groups.
NC, normal controls; AD, Alzheimer’s disease; K-BNT, Korean version of the Boston Naming Test; RCFT, Rey-Osterrieth Complex Figure Test; SVLT, Seoul Verbal Learning Test; COWAT, Controlled Oral Word Association Test.