Table 1.
Patient demographic, olfactory performance, and motor scores
| Variable | Mean ± SD | P valuea | |
|---|---|---|---|
| PD patients, n = 157 | Non‐PD patients, n = 53 | ||
| Men, no. (%) | 94 (60) | 28 (53) | 0.1 |
| Age, y | 64.4 ± 9.5 | 67.8 ± 8.69 | 0.019 |
| SST | |||
| Threshold | 2.3 ± 2.4 | 3.7 ± 2.8 | <0.001 |
| Discrimination | 8.8 ± 3.1 | 9.6 ± 3.4 | 0.08 |
| Identification | 7.5 ± 3.4 | 10.2 ± 3.8 | <0.001 |
| Total | 18.7 ± 7.3 | 23.6 ± 8.3 | <0.001 |
| MDS‐UPDRS‐III | |||
| Off | 23.3 ± 11.1 | 19.9 ± 16.9 | 0.09 |
| On | 15.7 ± 8.8 | 18.0 ± 15.2 | 0.2 |
| Percentage improvement on acute levodopa challenge | 32.5 ± 15.1 | 7.9 ± 9.6 | <0.001 |
SD, standard deviation; PD, Parkinson's disease; SST, Sniffin’ Sticks Test; MDS‐UPDRS: Movement Disorders Society‐Unified Parkinson's Disease Rating Scale.
a
Significant differences are indicated in bold.