Table 3.

DRD3 rs6280 Hardy-Weinberg equilibrium test in the TS patient and parents groups

Group	Genotype	Practical value	Expected value	χ2	P
TS patients	C/C	11	10.46	0.237	0.805
	C/T	43	44.08
	T/T	47	46.46
Parents	C/C	22	20.92	0.122	0.727
	C/T	86	88.17
	T/T	94	92.92

TS: Tourette syndrome.