All (n=487) | Cervical (n=286, 58.7%) | Blepharospasm (n=116, 30.8%) | Hand (n=47, 9.7%) | Laryngeal (n=38, 7.8%) | |
Age, mean (SD), years | 55.6 (12.2) | 54.2 (12.4) | 59.2 (10.4) | 52.9 (12.8) | 58.3 (12.9) |
Age at onset, mean (SD), years | 53.0 (12.0) | 51.6 (12.2) | 56.5 (10.3) | 50.1 (12.5) | 55.9 (12.5) |
Sex, F : M, n (%) | 332 (68.3):154 (31.7) | 192 (67.1):94 (32.9) | 81 (70.4):34 (29.6) | 32 (68.1):15 (31.9) | 27 (71.1):11 (28.9) |
Race, n (%) | |||||
White | 428 (87.9) | 267 (93.4) | 94 (81.0) | 39 (83.0) | 28 (73.7) |
Black | 29 (6.0) | 6 (2.1) | 12 (10.3) | 5 (10.6) | 6 (15.8) |
Asian | 13 (2.7) | 6 (2.1) | 5 (4.3) | 1 (2.1) | 1 (2.6) |
American Indian | 2 (0.4) | 1 (0.4) | 0 (0) | 0 (0) | 1 (2.6) |
Unknown/other | 15 (3.1) | 6 (2.1) | 5 (4.3) | 2 (4.3) | 2 (5.3) |
Ethnicity, n (%) | |||||
Non-Hispanic/Latino | 392 (80.5) | 232 (81.1) | 92 (79.3) | 34 (72.3) | 34 (89.5) |
Hispanic or Latino | 22 (4.6) | 11 (3.9) | 7 (6.0) | 2 (4.3) | 2 (5.3) |
Unknown/other | 73 (15.0) | 43 (15.0) | 17 (14.7) | 11 (23.4) | 2 (5.3) |
Disease duration, years | 2.7±1.5 | 2.6±1.5 | 2.8±1.4 | 2.8±1.5 | 2.4±1.5 |
GDRS, mean (SD) | 7.8 (5.5) | 7.2 (4.2) | 10.6 (7.5) | 6.1 (6.1) | 6.2 (3.2) |
BFMS, mean (SD) | 6.7 (4.8) | 6.1 (3.5) | 9.4 (6.5) | 5.6 (5.9) | 4.6 (3.4) |
Family history, n (%) | |||||
Negative | 399 (81.9) | 232 (81.1) | 98 (84.5) | 39 (83.0) | 30 (79.0) |
Positive | 59 (12.1) | 38 (13.3) | 12 (10.3) | 5 (10.6) | 4 (10.5) |
Unknown | 29 (6.0) | 16 (5.6) | 6 (5.2) | 3 (6.4) | 4 (10.5) |
Tremor dominant, n (%) | 56 (11.6) | 41 (14.4) | 1 (0.9) | 8 (17.0) | 6 (15.8) |
Effective sensory trick, n (%) | 288 (59.1) | 199 (69.6) | 64 (55.2) | 19 (40.4) | 6 (15.8) |
EtOH responsive, n (%) | |||||
No | 212 (43.5) | 115 (40.2) | 60 (51.7) | 16 (34.0) | 21 (55.3) |
Yes | 67 (13.8) | 51 (17.8) | 7 (6.0) | 3 (6.4) | 6 (15.8) |
Unknown | 208 (42.7) | 120 (42.0) | 49 (42.2) | 28 (59.6) | 11 (29.0) |
BFMS, Burke-Fahn-Marsden Scale; EtOH, ethyl alcohol; GDRS, Global Dystonia Rating Scale.