Demographic and clinical characteristics of patients with Parkinson’s disease (PD) and the orthopaedic controls (OC)
| Group | |||||||
|---|---|---|---|---|---|---|---|
| PD (17/15*) | OC (17/14*) | ||||||
| Mean | SD | Mean | SD | t | df | Effect size (d) | |
| *male/female. | |||||||
| SD, standard deviation; df, degrees of freedom; t, independent t test. | |||||||
| Age (years) | 57.8 | 5.2 | 56.7 | 7.2 | 0.72 | 61 | 0.18 |
| Education (years) | 10.8 | 1.7 | 10.2 | 1.5 | 1.41 | 61 | 0.37 |
| Laterality quotient | 74.5 | 29.1 | 86.5 | 31.5 | −1.57 | 61 | −0.40 |
| Time since onset of illness (weeks) | 470 | 282 | |||||