Demographics and clinical characteristics of sample (n=98)
| Mean (SD) | % | n | |
| Age (y) | 67.5 (9.1) | ||
| Sex: | |||
| Male | 60.2 | 59 | |
| Female | 39.8 | 39 | |
| Race: | |||
| White | 96.9 | 95 | |
| African-American | 2 | 2 | |
| Other | 1 | 1 | |
| Level of education (y) | 14.7 (3.8) | ||
| Living situation: | |||
| Alone | 15.3 | 15 | |
| Spouse/caregiver | 81.6 | 80 | |
| Nursing home | 3.1 | 3 | |
| Age of onset (PD) | 59.4 (10.3) | ||
| Duration of disease (y) | 9.7 (5.3) | ||
| Current use of: | |||
| Levodopa | 83.7 | 82 | |
| Anticholinergic drugs | 15.3 | 15 | |
| Amantadine | 9.2 | 9 | |
| Dopamine agonists | 27.6 | 27 | |
| Selegilene | 52.0 | 51 | |