Demographic data of the control group and patients
| Control group, n:20 range | Patients, n:24 range | |
| Age | 56.45±8.07 (43–72) | 58.42±13.09 (34–84) |
| Gender (F/M) | 11/9 | 13/11 |
| Age at disease onset | – | 49.12±14.36 (18–70) |
| Disease duration (year) | – | 7.24±4.76 (2–22) |
| Treatment duration (year) | – | 5.10±3.08 (1–12) |
| BoNT-A dose (units) | – | 45.40±14.60 (20–88) |
BoNT-A, botulinium toxin-A; F/M, female and male.