Table I.
Demographic and clinical data.
| ET (20 pts) | DT (20 pts) | PD-T (20 pts) | p value (Kruskal-Wallis test) | ET vs DT (p value) | ET vs PD-T (p value) | DT vs PD-T (p value) | |
|---|---|---|---|---|---|---|---|
| Sex (M/F) | 14/6 | 13/7 | 9/11 | 0.233 | 0.736 | 0.11 | 0.2 |
| Age (years) | 72.6 ± 6.9 | 53.6 ± 22.2 | 71.6 ± 9.2 | 0.001 | 0.001 | 0.925 | 0.001 |
| Age at onset (years) | 55.1 ± 14.1 | 44.2 ± 22.9 | 64.7 ± 8.3 | 0.001 | 0.114 | 0.007 | 0.001 |
| Disease duration (years) | 17.5 ± 14.0 | 9.3 ± 7.4 | 6.9 ± 3.5 | 0.003 | 0.03 | <0.001 | 0.445 |
Legend: pts=patients; ET=essential tremor; DT=dystonic tremor; PD-T= parkinsonian tremor