Spasmodic torticollis patient characteristics
| Type of ST | n | Sex (M:F) |
Median age (y (range)) | Median duration (y (range)) | Severity1-150 (mean (SD)) | Primary failure |
| R Torticollis | 5 | 3:2 | 54 (32–57) | 12 (9–18) | 20.2 (5) | |
| L Torticollis | 11 | 4:7 | 49 (30–60) | 11 (2–26) | 20 (4.2) | 3 |
| R Laterocollis | 6 | 3:3 | 52 (44–59) | 12 (7–22) | 19.5 (6) | |
| L Laterocollis | 6 | 1:5 | 50 (38–66) | 16 (4–21) | 22.3 (1.6) | 1 |
| Anterocollis | 1 | 1:0 | 53 | 17 | 16 | 1 |
| Retrocollis | 5 | 4:1 | 56 (23–59) | 10 (3–37) | 21 (4.1) | 1 |
| Total | 34 | 16:18 | 53.5 (23–66) | 11.5 (2–37) | 20.4 (4) | 6 |
↵1-150 As determined by the TWSTRS. R=right, L=left.