Table 3. Comparison of SPQ scores in patients with uncomplicated GTS (‘GTS only’, n = 20) and patients with GTS and associated psychopathology (‘GTS plus’, n = 82).

SPQ	GTS only (mean, SD)	GTS plus (mean, SD)	t	P	95% CI
Total	17.8 (6.3)	32.1 (14.3)	3.98	0.007**	4.37–20.14
CP	6.8 (4.5)	10.8 (4.8)	2.83	0.026*	1.74–9.72
I	9.1 (5.8)	18.5 (7.1)	4.35	0.003**	5.33–11.82
D	4.9 (3.2)	7.3 (4.7)	2.11	0.048*	0.02–4.37

GTS, Gilles de la Tourette syndrome; SPQ, Schizotypal Personality Questionnaire; CP, Cognitive-Perceptual dimension; I, Interpersonal dimension; D, Disorganized dimension.

^*P < 0.05

^**P < 0.01.