Table II.
Performance of cognitive function tests
| Tests | CS | MCI | AD |
|---|---|---|---|
| VF | 39.8 (6.8) | 22.8 (6.6)** | 19.8 (4.5)** |
| WCST‐c | 5.8 (1.1) | 2.7 (2.3)** | 1.3 (0.5)** |
| WCST‐p | 2.3 (1.6) | 20.2 (15.6)** | 19.2 (14.4)* |
| TMT‐A (s) | 49.3 (11.6) | 89.0 (43.1)* | 110.2 (36.7)** |
| TMT‐B (s) | 129.9 (46.0) | 250.7 (85.6)** | 278.5 (33.4)** |
| FBI‐n | 0.0 (0.0) | 5.2 (3.3)**† | 10.5 (5.1)** |
| FBI‐d | 0.0 (0.0) | 1.2 (1.2)†† | 7.2 (5.0)** |
| I‐recall | 57.8 (12.7) | 26.2 (15.8)** | 23.7 (12.6)** |
| D‐recall | 35.8 (8.5) | 11.5 (10.4)** | 4.2 (6.5)** |
| Recognition | 25.8 (2.9) | 17.2 (2.5)** | 11.2 (8.2)** |
Mean (standard deviation); VF, Verbal Fluency Test; WCST, Wisconsin Card Sorting Test; c, number of completed categories; p, number of perseverative errors; TMT, trail making, A, part A; B, part B; FBI, frontal behavioral inventory; n, negative behavioral score; d, disinhibition score; I‐recall, immediate recall of logical memory; D‐recall, delayed recall of logical memory of Wechsler Memory Scare 3rd Version; *P < 0.05; **P < 0.01 multiple variates analysis of variance with post hoc between AD and CS; †P < 0.05, ††P < 0.01 with post hoc between MCI and AD.