Table 2.
Demographic and clinical characteristics.
| Variable | N | Mean (SD) or Percentage |
|---|---|---|
| Demographic characteristics | 193 | |
| Age | 65.8 (10.7) | |
| Sex (% males) | 79.3% | |
| Marital status (% married) | 77.2% | |
| Education (# years) | 15.4 (3.3) | |
| Parkinson’s disease variables | 193 | |
| Disease duration (# years) | 7.3 (5.5) | |
| Levodopa dosage (mg/day) | 538.9 (381.1) | |
| Dopamine agonist use (% yes) | 50.8% | |
| Sidedness of PD symptoms | ||
| Right sided predominant | 39.4% | |
| Left sided predominant | 37.8% | |
| Mixed | 22.8% | |
| UPDRS motor subscore | 21.9 (10.8) | |
| Hoehn and Yahr stage | 2.3 (0.7) | |
| Schwab and England score | 88.5 (12.7) | |
| Psychiatric and cognitive variables | 193 | |
| GDS-15 score | 4.4 (4.0) | |
| Any depression (% yes) | 33.2% | |
| Major depression (% yes) | 23.3% | |
| Minor depression (% yes) | 9.8% | |
| Antidepressant use (% yes) | 28.0% | |
| MMSE score | 28.0 (2.6) | |
| IEED variables | ||
| CNS-LS score | 193 | 12.4 (4.5) |
| CNS-LS positive-13 cutoff (% yes) | 42.5% | |
| CNS-LS positive-17 cutoff (% yes) | 16.6% | |
| IEED diagnosis (% yes) | 100 | 7.0% |
| IEED symptoms or diagnosis (% yes) | 14.0% | |