Table 2.
Yale Global Tic Severity Scale (YGTSS) outcome (values are expressed as absolute scores).
| YGTSS | Time | BT (n = 25) Mean (SD) | PT (n = 47) Mean (SD) | PE (n = 24) Mean (SD) | Treatment F (df1, df2) p | Treatment × time F (df1, df2) p# |
|---|---|---|---|---|---|---|
| Motor | 0 1 2 |
13.00 (4.03) 7.72 (3.74)* 8.52 (3.85)* |
14.04 (4.07) 9.58 (3.94)* 9.09 (2.93)* |
13.00 (4.46) 13.04 (4.45) 12.54 (3.90) |
F(2.99) = 5.03 p = 0.0083 |
F(4,198) = 15.63 p < 0.0001 |
| Phonic | 0 1 2 |
7.08 (5.74) 3.8 (4.09)* 3.84 (4.91)* |
10.28 (4.46) 6.13 (3.46)* 5.66 (3.23)* |
8.92 (4.05) 8.67 (4.04) 8.54 (3.80) |
F(2.99) = 7.23 p = 0.0012 |
F(4.198) = 9.60 p < 0.0001 |
| Severity score | 012 | 19.76 (8.49)11.44 (6.87)*12.36 (6.49)* | 24.13 (7.50)15.70 (6.59)*14.72 (5.10)* | 21.96 (7.62)21.66 (7.55)20.67 (7.38) |
F(2.99) = 7.37 p = 0.0010 |
F(4.198) = 15.88 p < 0.0001 |
| Global impairment | 0 1 2 |
15.48 (11.06) 8.4 (8.43)* 7.6 (8.79)* |
12.64 (11.46) 7.73 (7.76)* 7.36 (7.88)* |
12.91 (10.82) 12.91 (10.83) 12.45 (10.70) |
F(2.99) = 1.22 p = 0.2999 |
F(4.198) = 7.06 p = 0.0002 |
| Total | 0 1 2 |
35.4 (17.78) 19.84 (14.38)* 19.96 (13.68)* |
36.38 (16.70) 23.47 (12.64)* 22.26 (11.23)* |
34.25 (14.34) 35.00 (14.89) 33.12 (13.88) |
F(2,99) = 3.22 p = 0.0442 |
F(4.198) = 13.51 p < 0.0001 |
*p < 0.05, time 1 or time 2 vs time 0, within each treatment group.
#Greenhouse–Geisser correction for the sphericity assumption.