Table 1.
Demographical and clinical data
| Index | PDD | PDnD | P value |
|---|---|---|---|
| N | 31 | 37 | ‐ |
| Age (years±SD) | 58.8 ± 8.67 | 59.1 ± 11.4 | 0.902 |
| Age of onset (years±SD) | 55.3 ± 8.26 | 56.7 ± 10.7 | 0.547 |
| Duration (years±SD) | 3.23 ± 3.04 | 2.40 ± 2.53 | 0.229 |
| Male/Female | 18/13 | 23/14 | 0.731 |
| UPDRS‐III | 20.6 ± 11.8 | 17.8 ± 12.8 | 0.355 |
| H‐Y scale | 2.16 ± 1.02 | 1.84 ± 1.00 | 0.216 |
| MMSE | 27.6 ± 1.87 | 27.7 ± 1.80 | 0.937 |
| HDRS | 25.2 ± 3.96 | 5.43 ± 3.99 | <0.001a |
a
Indicates statistical significant difference (P < 0.01).
PDD, PD with depression; PDnD, PD with no depression; UPDRS‐III, Unified Parkinson's Disease Rating Scale scores‐III; H‐Y scale, Hoehn‐Yahr scale; MMSE, Mini‐Mental State Examination scores; HDRS, Hamilton Depression Rating Scale.