Table 3.
Baseline differences in cognition between poor and good sleepers.
| Cognitive tests | Good sleepers | Poor sleepers | p-value* |
|---|---|---|---|
| n = 50 | n = 59 | ||
| PD-MCI, n (%) | 20 (40.0) | 21 (35.6) | 0.421 |
| Global: | |||
| MOCA | 26.41 (25.68, 27.14) | 26.03 (25.38, 26.68) | 0.444 |
| Attention: | |||
| WAIS-IV forward digit span | 10.96 (10.25, 11.67) | 10.27 (9.64, 10.90) | 0.155 |
| WAIS-IV backward digit span | 8.57 (7.97, 9.16) | 7.72 (7.19, 8.25) | 0.038 |
| WMS-IV symbol span | 18.16 (15.65, 20.68) | 16.11 (13.86, 18.35) | 0.232 |
| Executive function: | |||
| Fruit fluency | 13.98 (13.13, 14.84) | 14.66 (13.89, 15.42) | 0.251 |
| FAB | 16.41 (15.96, 16.86) | 16.51 (16.11, 16.91) | 0.749 |
| Language: | |||
| BNT total score | 25.76 (24.87, 26.64) | 26.42 (25.63, 27.20) | 0.274 |
| WAIS-IV similarities | 20.72 (19.09, 22.34) | 21.24 (19.79, 22.69) | 0.637 |
| Memory: | |||
| ROCF copy | 32.34 (31.18, 33.30) | 32.15 (31.20, 33.09) | 0.897 |
| ROCF delayed recall | 15.23 (13.11, 17.34) | 15.14 (13.26, 17.02) | 0.955 |
| ADAS-Cog immediate recall | 3.15 (2.78, 3.51) | 2.87 (2.54, 3.19) | 0.264 |
| ADAS-Cog delayed recall | 2.93 (2.41, 3.45) | 2.62 (2.15, 3.08) | 0.381 |
| Visuospatial: | |||
| RBANS line judgement | 15.68 (14.82, 16.55) | 15.39 (14.62, 16.16) | 0.617 |
| ADAS-Cog constructional praxis | 3.63 (3.46, 3.79) | 3.60 (3.46, 3.75) | 0.840 |
| CLOX-2 | 14.71 (14.52, 14.90) | 14.62 (14.45, 14.79) | 0.511 |
Adjusted for age, gender, disease duration, LEDD, Levodopa equivalent daily dosage, MDS-UPDRS, Movement Disorders Society Unified Parkinson's Disease Rating Scale, Years of education.
Least-square means (95% confidence interval) using multivariable linear regression analysis.
PD-MCI, Parkinson Disease- Mild Cognitive Impairment; MOCA, Montreal Cognitive Assessment; WAIS-IV, Weschler Adult Intelligence Scale 4th Edition; FAB, Frontal Assessment Battery; ROCF, Rey-Osterrieth Complex Figure; ADAS-Cog, Alzheimer's Disease Assessment Scale- Cognitive; RBANS, Repeatable Battery for Assessment of Neuropsychological Status; CLOX-2, Clock Drawing Test.
The bold values indicate statistical significance.