Table 1.
Mean demographic and clinical measures (standard deviations) and group differences
| Measures | Patienta | Control | Group differenceb |
|---|---|---|---|
| Sex ratio (male:female) | 21:13 | 23:19 | ns |
| Age (years) | 66.5 (7.0) | 66.6 (6.9) | ns |
| Education (years) | 12.5 (5.7) | 14.7 (2.8) | ns |
| Mini mental state examination | 28.6 (1.6) | 29.3 (1.0) | ns |
| Duration of symptoms (years) | 8.9 (6.3) | – | – |
| Unified Parkinson's Disease Rating Scale (section III motor subscale) | 22.5 (7.8) | – | – |
| Hoehn and Yahr | 2.0 (0.6) | – | – |
| Schwab and England activities of daily living scale | 81.2 (18.5) | – | – |
| Levodopa actual dose (mg/day) | 547.1 (304.0) | – | – |
| Levodopa equivalent dose (mg/day) | 913.7 (522.3) | – | – |
a
Patients with Parkinson's disease were tested on their regular dopaminergic antiparkinsonian medications.
b
P‐values of chi‐squared or unpaired t‐tests as appropriate, corrected for multiple comparisons; ns, not significant.