Table 4.

Regression results from GxE models of harsh discipline (HD), childhood sexual assault (CSA), and MAOA genotype influences on externalizing disorder symptoms.

	Alcohol			Tobacco			Cannabis			Antisocial Behavior			Conduct Disorder
	b	Z	p	b	Z	p	b	Z	p	b	Z	p	b	Z	p
Intercept	0.368	7.842	<0.001	0.473	9.514	<0.001	0.231	4.940	<0.001	0.456	12.509	<0.001	0.120	4.443	<0.001
Sex	0.474	8.373	<0.001	0.168	2.825	0.005	0.132	2.456	0.014	0.333	7.827	<0.001	0.365	10.395	<0.001
HD	0.208	2.189	0.029	0.183	2.087	0.037	0.135	1.400	0.161	0.210	3.208	0.001	0.274	3.718	<0.001
CSA	-0.020	-0.123	0.902	0.238	1.241	0.215	0.136	0.641	0.521	0.020	0.122	0.903	0.055	0.423	0.673
MAOA genotype	0.033	0.526	0.599	-0.108	-1.687	0.092	-0.082	-1.542	0.123	0.056	1.187	0.235	-0.044	-1.087	0.277
HD*CSA	0.232	0.643	0.520	0.423	1.768	0.077	0.586	1.469	0.142	0.194	0.920	0.358	0.011	0.055	0.956
HD*MAOA	-0.036	-0.200	0.842	-0.058	-0.364	0.716	0.156	0.969	0.332	-0.051	-0.391	0.696	0.013	0.106	0.916
CSA*MAOA	0.531	1.551	0.121	0.523	1.936	0.053	0.295	0.715	0.475	0.470	2.467	0.014	0.576	2.697	0.007

Note. Predictor variables are coded 0/1 with the "high risk" group (i.e. males, HD/CSA exposure, low MAOA) coded 1. Significant terms (p < 0.05) are indicated in bold.

Model: DV = b₀ + b₁sex + b₂HD+ b₃CSA + b₄MAOA + b₅HD*CSA+ b₆HD*MAOA + b₇CSA*MAOA