Table 4.
Correlation between NMSS domains and PDQ-39 scores.
| NMSS domains | Median (IQR) | r s | P |
|---|---|---|---|
| Cardiovascular | 0.0 (0.0–2.0) | 0.563 | <0.001 |
| Sleep/fatigue | 2.0 (0.0–3.0) | 0.469 | <0.001 |
| Mood/cognition | 1.0 (0.0–3.0) | 0.588 | <0.001 |
| Perceptual problems | 0.0 (0.0-0.0) | 0.336 | <0.001 |
| Attention/memory | 1.0 (0.0–3.0) | 0.281 | 0.003 |
| Gastrointestinal | 2.0 (0.0–3.0) | 0.412 | <0.001 |
| Urinary | 0.0 (0.0–1.0) | 0.154 | 0.104 |
| Sexual function | 0.0 (0.0-0.0) | 0.173 | 0.067 |
| Miscellaneous | 1.0 (0.0–2.0) | 0.258 | 0.006 |
| NMSS total | 9.0 (6.0–15.0) | 0.727 | <0.001 |
r s: Spearman's rank correlation coefficient; NMSS: nonmotor symptoms scale for Parkinson's disease; PDQ-39: the 39-item Parkinson's disease questionnaire.