Table 1.
Demographic data for depressed, non-depressed and extreme depressed, extreme non-depressed Parkinson's disease groups.
| Demographics | Depressed PD | Non-depressed PD | p-value | Extreme depressed PD | Extreme non-depressed PD | p-value |
|---|---|---|---|---|---|---|
| (n = 18) | (n = 19) | (n = 10) | (n = 10) | |||
| Age | 61.94 ± 8.48 | 62.00 ± 8.54 | 0.98 | 62.40 ± 12.57 | 61.40 ± 11.77 | 0.86 |
| Education | 15.22 ± 2.92 | 14.63 ± 3.22 | 0.56 | 15.40 ± 2.84 | 14.30 ± 2.71 | 0.39 |
| Ethnicity | 1 Hispanic; 1 African American; 2 Asians; 14 Caucasians |
1 not specified; 18 Caucasians |
1 African American; 9 Caucasians |
10 Caucasians | ||
| Males: females | 11:7 | 11:8 | 0.85 | 6:4 | 6:4 | 1.00 |
| MoCA | 27.28 ± 1.81 | 27.73 ± 1.97 | 0.47 | 27.40 ± 2.17 | 28.2 ± 1.93 | 0.40 |
| MDS UPDRS–III | 27.78 ± 14.55 | 23.11 ± 10.25 | 0.26 | 22.20 ± 5.96 | 20.30 ± 7.85 | 0.55 |
| Freezing of gait | 0.06 ± 0.24 | 0.05 ± 0.23 | 0.97 | 0 | 0 | – |
| Hoehn and Yahr | 1.89 ± 0.47 | 1.74 ± 0.45 | 0.32 | 2.10 ± 0.32 | 1.70 ± 0.48 | 0.40* |
| PD duration | 6.89 ± 0.96 | 6.74 ± 0.93 | 0.63 | 6.90 ± 0.99 | 6.30 ± 0.82 | 0.16 |
| GDS-15 | 7.0 ± 2.45 | 1.95 ± 1.18 | 0.00* | 11.13 ± 2.31 | 0.0 ± 0.0 | 0.00* |
| Anti-depressant medication | 17 no, 1 yes | 17 no, 2 yes | 10 no, 0 yes | 9 no, 1 yes |
Means and standard deviations or raw numbers shown.
*
p < 0.05.
MoCA, Montreal Cognitive Assessment; MDS UPDRS, Movement Disorder Society Unified Parkinson's Disease Rating Scale Part III (movement index); GDS-15, Geriatric Depression Scale short form. Colour to highlight and distinguish the 4 study groups.