TABLE 2.
Individual patient data group characteristics
| Characteristic | Total population |
|---|---|
| Sex (n = 75) | |
| Men | 35/75 (46%) |
| Women | 18/75 (24%) |
| Unknown | 22/75 (30%) |
| Mean age at surgery ± SD (y), n = 70 | 20 ± 13.9 |
| Type of dystonia (n = 72) | |
| Generalized | 49/72 (68%) |
| Status dystonicus | 16/72 (22%) |
| Focal | 6/72 (8%) |
| Camptocormia | 1/72 (1%) |
| Mean duration of follow‐up ± SD (mo), n = 67 | 19.7 ± 27.7 |
| Diagnosis (n = 55) | |
| Idiopathic | 9/56 (16%) |
| Acquired | 17/56 (30%) |
| Inherited | 30/56 (54%) |
| BFMDRS improvement (n = 53) | |
| >40% | 34/53 (64%) |
| 20–40% | 8/53 (15%) |
| <20% | 9/53 (17%) |
| Worsening | 2/53 (4%) |
| UDRS (n = 17) | |
| Improvement ≥20% | 11/17 (65%) |
| Score decrease <20% | 4/17 (24%) |
| No change or worsening | 2/17 (12%) |
| Side effects (n = 75) | |
| Transient | 6/75 (8%) |
| Permanent | 8/75 (11%) |
Abbreviations: BFMDRS, Burke‐Fahn‐Marsden Dystonia Rating Scale; UDRS, Unified Dystonia Rating Scale.