Table 1.
Demographic and clinical characteristics of Parkinson’s disease groups
| PD-PNP (n = 40) | PD-noPNP (n = 59) | P-value | |
|---|---|---|---|
| Sex, n (%) | 18F (45%) | 21F (36%) | 0.350 |
| Age, years | 66.1 (10) | 67.9 (9) | 0.630 |
| Age at disease onset, years | 59.2 (12) | 61.4 (9) | 0.737 |
| Disease duration, years | 7.1 (6) | 6.1 (4) | 0.738 |
| H&Y Stage | 2 | 2 | 0.344 |
| LEDD, mg | 738 (362) | 706.1 (413) | 0.431 |
| UPDRS II ON | 7.3 (4) | 5.2 (4) | 0.004** |
| UPDRS II OFF | 8.8 (4) | 7.5 (5) | 0.095 |
| UPDRS III ON | 15 (9) | 14.9 (8) | 0.849 |
| UPDRS III OFF | 24.1 (11) | 24.7 (10) | 0.754 |
| UPDRS IV | 2.7 (2) | 2.3 (2) | 0.188 |
| NMSS | 29 (21) | 33.2 (27) | 0.638 |
| DRS | 122.4 (15) | 123.2 (16) | 0.603 |
Main demographic and clinical characteristics between PD-PNP and PD-noPNP patients. Values are expressed in mean (standard deviation). Mean comparison (t-test or Mann–Whitney U-test, where appropriate). F = female; H&Y = Hoehn and Yahr stage. **P < 0.01.