Table 1.

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

Group	Genotype	Practical value	Expected value	χ2	P
Control	C/C	12	8.40	3.195	0.074
	C/T	31	38.19
	T/T	47	43.40
TS patients	C/C	17	18.56	0.302	0.582
	C/T	75	71.87
	T/T	68	69.56

DRD3: Dopamine D3 receptor; TS: Tourette syndrome.