TABLE 1.

Clinical and demographic data of CD patients.

Number of patients	Age range (y)	Disease duration (y)	TWSRS total score	Dystonic pattern	Head tremor
7	30–45	9.1 ± 7.5	15.4 ± 9.7	1 L/R; 2L; 3 L/T; 1 T	2/7
14	46–61	14.5 ± 9.8	19.2 ± 11.4	3 L; 4L/T; 2 L/R; 4 T; 1 T/L	6/14
4	62–76	10.2 ± 6.9	12.5 ± 4.0	2 L; 1 L/T; 1 T/R	1/4

Data are expressed as mean ± standard deviation and as number of CD patients. Y: years; TWSTRS: Toronto Western Spasmodic Torticollis Rating Scale; L: laterocollis; T: torticollis; R: retrocollis.