Demographics and rating scale scores
| All subjects | Cervical | Laryngeal | Limb | Lower cranial | Upper cranial | ||
| Total (n) | 478 | 255 | 33 | 60 | 39 | 91 | |
| Gender (F/M) | 317 (66%)/161 (34%) | 171 (67%)/84 (33%) | 23 (70%)/10 (30%) | 37 (62%)/23 (38%) | 25 (64%)/14 (36%) | 61 (67%)/30 (33%) | |
| Age (years) | 55.1±12.7 | 53.5±12.9 | 57.7±12.8 | 51.7±13.7 | 57.4±10.6 | 59.8±10.5 | |
| Age of onset (years) | 52.2±12.6 | 50.8±12.8 | 55.1±12.3 | 48.8±13.3 | 55.1±10.9 | 56.2±11.0 | |
| GDRS | n | 474 | 253 | 33 | 59 | 38 | 91 |
| Mean ± SD | 7.7±5.4 | 7.2±4.0 | 6.4±4.2 | 5.9±6.1 | 8.8±5.7 | 10.3±7.4 | |
| BFMDRS | n | 443 | 243 | 29 | 54 | 35 | 82 |
| Mean ± SD | 6.4±4.7 | 6.1±3.9 | 4.8±3.6 | 4.8±5.1 | 6.7±4.8 | 8.7±6.1 | |
| BDI | n | 444 | 238 | 33 | 54 | 38 | 81 |
| Mean ± SD | 9.9±8.8 | 10.9±9.2 | 7.4±7.0 | 8.9±9.3 | 9.3±8.4 | 9.0±8.3 | |
| HADS-D | n | 470 | 249 | 33 | 59 | 39 | 90 |
| Mean ± SD | 4.8±4.1 | 5.0±4.1 | 3.3±3.3 | 3.8±3.7 | 4.8±4.1 | 5.3±4.4 | |
| HADS-A | n | 470 | 249 | 33 | 59 | 39 | 90 |
| Mean ± SD | 6.5±4.1 | 6.9±4.1 | 7.6±3.9 | 6.0±3.9 | 6.3±4.1 | 5.4±4.1 | |
| LSAS | n | 471 | 249 | 33 | 60 | 39 | 90 |
| Mean ± SD | 33.0±26.5 | 33.5±26.5 | 47.6±26.8 | 24.7±24.2 | 33.9±25.5 | 31.3±26.7 | |
| SF-36 (Pain) | n | 470 | 247 | 33 | 60 | 39 | 91 |
| Mean ± SD | 5.4±2.5 | 6.1±2.4 | 3.9±2.0 | 4.4±2.5 | 5.2±2.3 | 4.9±2.6 | |
BDI, Beck Depression Inventory (2nd edition); BFMDRS, Burke-Fahn-Marsden Dystonia Rating Scale; GDRS, Global Dystonia Rating Scale; HADS-D/A, Hospital Anxiety and Depression Scale–Depression/Anxiety; LSAS, Liebowitz Social Anxiety Scale, SF-36, 36-Item Short Form Survey.