Table 1.

Results for attention-deficit/hyperactivity disorder candidate single nucleotide polymorphisms in Parkinson’s disease meta-analysis

Gene	SNP	Effect allele/other allele	Allele frequency	P value	Effect	Het p
CDH13	rs6565113	T/G	0.53	0.20	0.032	0.76
CDH13	rs11646411	C/G	0.88	0.92	0.004	0.73
CDH13	rs7187223	A/G	0.96	0.65	−0.028	0.58
DRD4	rs1800955	T/C	0.65	0.70	−0.0115	0.63
HTR1B	rs6296	C/G	0.74	0.16	0.0405	0.45
SLC6A2 (NET1)	rs3785143	T/C	0.091	0.958	0.0023	0.075
SLC6A3 (DAT1)	rs27072	T/C	0.17	0.35	−0.031	0.33
SNAP25	rs3746544	T/G	0.65	0.97	9.00E-04	0.17
TPH2	rs1843809	T/G	0.85	0.037*	−0.071	0.77

^*Nominal significant; the shown p values are not corrected for multiple testing; Het p = heterogeneity p value; data derived from the PD meta-analysis (Nalls et al. 2011)