Table A1.

Univariate associations (t-tests) of tagging SNPSs and UPDRS scores.

Gene	SNP	Comparison groups (genotypes)	t, df	P-value
TH	Rs6356	GG/AA+GA	2.94, 26	0.007
	Rs10840489	CC/TT+CT	(−1.95), 25	0.06
	Rs10770141	GG/AA+GA	0.71, 26	0.48
COMT	Rs933271	TT/CC+TC	(−0.38), 26	0.7
	Rs740603	GG/AA+GA	(−0.95), 26	0.34
	Rs16982844*	NA	NA	NA
	Rs4646312	TT/CC+TC	0.81, 26	0.42
	Rs4680†	AA/GG+AG	0.78, 26	0.44
		GG/AA+AG	(−0.27), 26	0.78
	Rs4646316	CC/TT+CT	0.23, 26	0.81
	Rs165774	GG/AA+GA	0.15, 26	0.87
	Rs174696	TT/CC+TC	(−0.03), 26	0.97
	rs9332377	CC/TT+CT	0.60, 26	0.55
	rs737866	TT/CC+TC	(−1.32), 26	0.13
	rs5993883	GG/TT+GT	(−0.16), 26	0.77
MAO-A	rs2235185	CC/TT+CT	0.27, 26	0.78
	rs3027392	GG/AA+AG	(−0.16), 26	0.87
	rs3027399**	GG/CC+CG	0.24, 26	0.81
	rs5906957	GG/AA+AG	0.91, 26	0.37
	rs909525	AA/GG+AG	0.7, 26	0.49
MAO-B	rs10521432	GG/AA+AG	1, 26	0.32
	rs1799836	AA/GG+AG	0.82, 25	0.42
	rs2311013*	NA	NA	NA
	rs3027448	TT/CC+CT	(−1), 26	0.327
	rs4824562*	NA	NA	NA
	rs5905449	GG/AA+AG	1.07, 26	0.29
	rs5905512	AA/GG+AG	0.89, 25	0.38

^*MAF < 0.05.

^**MAF < 0.1.

^†The two alleles had equal frequencies (0.5).

Bold value indicates p < 0.05.