Table 1.
Patient characteristics.
| Number of patients | 89 |
| Male | 59 |
| Female | 30 |
| Age at onset (year) | 40.4 ± 15.2 |
| Age at surgery (year) | 48.1 ± 14.1 |
| Mean follow‐up period (month) | 17.2 ± 11.6 |
| BFMDRS | 13.8 ± 1.5 |
| Distribution of dystonia | |
| Generalized dystonia | 11 |
| Segmental dystonia | |
| Meige syndrome | 17 |
| Other segmental dystonia | 7 |
| Focal dystonia | |
| Cervical dystonia | 33 |
| Focal arm/hand dystonia | 8 |
| Mouth dystonia | 7 |
| Tongue dystonia | 3 |
| Blepharospasm | 2 |
| Spasmodic dysphonia | 1 |
| Unilateral pallidotomy | 69 |
| Rt | 29 |
| Lt | 40 |
| Bilateral pallidotomy | 20 |
| Simultaneous | 2 |
| Staged | 18 |
Data are presented as mean ± standard deviation.
BFMDRS, Burke‐Fahn‐Marsden Dyatonia Rating Scale.