Skip to main content
. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: J Obsessive Compuls Relat Disord. 2014 Oct 1;3(4):394–400. doi: 10.1016/j.jocrd.2014.06.002

Table 2.

Prevalence of Transient, Chronic Motor and Chronic Vocal Tic Disorder

Author/Year Transient Tic Disorder Chronic Motor Tic Disorder Chronic Vocal Tic Disorder
# of
cases		 Prevalence
(per 1000)		 95% CI
(per
1000)		 # of
cases		 Prevalence
(per 1000)		 95% CI
(per
1,000)		 # of
cases		 Prevalence
(per 1000)		 95% CI
(per
1,000)
Kurlan et al., 2001 25a 20 12.3-27.7 a 4a 3 0-6.3 6a 5 1.1-8.9
Khalifa and von Knorring, 2003 214 47.7 41.5-53.9 34 7.6 5.1-10.1 24 5.3 3.3-7.5
Scahill et al., 2006 7 7.7 2.0-13.4 7 7.7 2.0-13.4 4 4.4 0.1-8.7
Stefanoff et al., 2008 29 18.4 11.8-25.0 35 22.2 14.9-29.5 4 2.5 0-5.0
Cubo et al., 2011 20 27 15.3-38.7 37 50 34.3-66.0 7 9.4 2.5-16.3b
Tabori-Kraft et al., 2012 16 3 1.6-4.4 37 6 4.0-8.0 NR NR NR
a

=estimated from Table 4 in the original report; NR= not reported. A similar table appeared in Tourette Syndrome, D. Martino and JF Leckman (eds); Oxford, New York, 2013