Table 1.
Participant demographics of those included in final DTI analysis.
| Participants |
Group comparisons (p Values) |
|||||
|---|---|---|---|---|---|---|
| HC (n = 30) | BSP (n = 12) | CD (n = 18) | BSP vs HC | CD vs HC | BSP vs CD | |
| Age, y | 62.6 ± 7.0 | 62.7 ± 8.4 | 62.6 ± 8.2 | 0.981 | 0.996 | 0.986 |
| Sex, F | 21 (70%) | 14 (78%) | 8 (67%) | 1.000 | 0.740 | 0.678 |
| Scanner, GE | 17 (67%) | 8 (67%) | 10 (56%) | 0.731 | 0.940 | 0.709 |
| Disease duration, y | – | 8.1 ± 7.3 | 17.6 ± 15.3 | – | – | 0.032 |
| JRS | – | 10.7 ± 4.8 | – | – | – | – |
| TWSTRS | – | – | 21.3 ± 8.4 | – | – | – |
Values shown as mean ± sd, except for sex and scanner where the frequency and percentage are presented. p values calculated using two-tailed independent sample t-tests with Satterthwaite method for unequal variances, except for sex and scanner differences tested using chi-square test or Fisher's exact test. Abbreviations: BSP = blepharospasm; CD = cervical dystonia; HC = healthy control; JRS = Jankovic Rating Scale; TWSTRS = Toronto Western Spasmodic Torticollis Scale.