Table 1.

Maternal allelic transmission to male ADHD probands

Genes	Variants	Alleles	Transmitted	Non-transmitted	Chi-square (p-value)	Relative risk (95% confidence interval)
MAOA	30 bp-uVNTR	3R	0.68	0.65	0.37 (0.54)	–
		4R	0.32	0.35
	rs5906883	A	0.67	0.64	0.36 (0.55)	–
		C	0.33	0.36
	rs1465107	G	0.31	0.39	2.44 (0.12)	–
		A	0.69	0.61
	rs1465108	A	0.69	0.61	2.44 (0.12)	–
		G	0.31	0.39
	rs5905809	C	0.33	0.44	4.03 (0.04)	1.20 (1.00 – 1.44)
		G	0.67	0.56
	rs5906957	A	0.67	0.56	4.03 (0.04)	1.20 (1.00 – 1.44)
		G	0.33	0.44
	rs6323	T	0.24	0.45	15.15 (0.0001)	1.38 (1.17 – 1.63)
		G	0.76	0.55
	rs1137070	C	0.32	0.41	2.40 (0.12)	–
		T	0.68	0.59
MAOB	rs4824562	A	0.80	0.73	2.23 (0.14)	–
		G	0.20	0.27
	rs56220155	G	0.26	0.43	9.16 (0.002)	1.29 (1.09 – 1.52)
		A	0.74	0.57
	rs2283728	T	0.19	0.36	11.26 (0.0008)	1.27 (1.10 – 1.46)
		C	0.81	0.64
	rs2283727	C	0.81	0.64	11.26 (0.0008)	1.27 (1.10 – 1.46)
		A	0.19	0.36
	rs3027441	C	0.20	0.35	8.86 (0.003)	1.23 (1.07 – 1.42)
		T	0.80	0.65
	rs6324	C	0.80	0.65	8.86 (0.003)	1.23 (1.07 – 1.42)
		T	0.20	0.35
	rs3027440	T	0.86	0.68	13.67 (0.0002)	1.26 (1.11 – 1.43)
		C	0.14	0.32

Statistically significant differences are presented in bold