Table 5.
Results of neuropsychological tests in patients with RBD and controls at follow-up
| RBD group (n = 24) | Controls (n = 12) | P | |
|---|---|---|---|
| MMSE§ | 28.0 ± 1.9 | 28.3 ± 2.3 | 0.44 |
| Memory | |||
| Digit span forward§ | 5.4 ± 0.8 | 5.7 ± 1.4 | 0.89 |
| Digit span backward§ | 4.0 ± 0.7 | 4.2 ± 0.8 | 0.24 |
| Corsi supraspan | 8.3 ± 2.8 | 18.3 ± 4.2 | < 0.0001* |
| Story recall | 7.9 ± 3.6 | 14.2 ± 2.3 | 0.0001* |
| Rey-Osterrieth complex figure delayed recall | 14.8 ± 7.0 | 20.2 ± 4.4 | 0.02 |
| Executive functions | |||
| Raven's progressive matrices | 30.7 ± 6.0 | 33.1 ± 2.2 | 0.23 |
| Attentional matrices | 46.6 ± 6.7 | 50.9 ± 5.3 | 0.07 |
| Corsi block tapping task | 4.7 ± 0.9 | 5.1 ± 0.7 | 0.21 |
| Stroop color word interference test§ | 35.1 ± 25.4 | 35.3 ± 23.7 | 0.91 |
| Trail Making Test A§ | 27.2 ± 15.8 | 17.8 ± 10.4 | 0.07 |
| Trail Making Test B§ | 26.3 ± 46.9 | 24.9 ± 31.2 | 0.42 |
| Trail Making Test B/A | 0.6 ± 1.4 | 1.8 ± 2.2 | 0.09 |
| Phonemic fluency | 34.6 ± 11.3 | 36.4 ± 8.4 | 0.74 |
| Semantic fluency | 40.0 ± 6.5 | 43.7 ± 8.2 | 0.16 |
| Visuo-spatial abilities | |||
| Rey-Osterrieth complex figure copy | 28.5 ± 5.3 | 34.9 ± 1.9 | 0.0004* |
§
Nonparametric test (Mann-Whitney U)
*
Significant P-values after adjusting for multiple testing (α < 0.0031).