| PD组 | PDD组 | n-PDD组 | 对照组 |
| (n = 230) | (n = 116) | (n = 114) | (n = 250) |
年龄(岁) | 64.9 ± 9.51 | 63.3 ± 9.96* | 66.5 ± 8.78 | 66.8 ± 9.81 |
性别(男,%) | 116 (50.4) | 58 (50.0) | 58 (50.9) | 134 (53.6) |
病程(年) | 5.07 | 5.72* | 4.40 | --------- |
UPDRS-Ⅲ(分) | 28.3 ± 12.61 | 32.4 ± 12.38* | 24.2 ± 11.51 | --------- |