Table 1.
Demographics of participants and clinical evaluation of patients.
| Characteristics | TD (N = 207) | GTS (N = 111) | HC (N = 489) |
|---|---|---|---|
| Age (years: mean ± SD) | 10.6 (3.6) | 11.4 (3.2) | 16.0 (9.7) |
| Male gender (n, %) | 170 (82.1) | 91 (81.9) | 296 (60.5) |
| YGTSS score | |||
| Motor tic severity | 14.2 (4.7)a | 11.1 (7.5)b | / |
| Vocal tic severity | 8.4 (7.0)a | 10.2 (6.7)b | / |
| Total tic severity score | 22.6 (9.5)a | 25.1 (9.1)b | / |
| Functional impairment | 24.1 (12.7)a | 27.0 (13.5)b | / |
| Total YGTSS score | 46.4 (19.3)a | 51.8 (19.1)b | / |
TD, tic disorder; GTS, Gilles de la Tourette Syndrome; HC, healthy controls; YGTSS, Yale Global Tic Severity Scale.
a
Data available for 147 TD subjects.
b
Data available for 83 GTS subjects.