Table 2.

Generalized estimating equation (GEE) predicting overt antisocial behavior (ASB)

Variables	β	z	p < value
Model 1
Age	−0.19	−3.28	0.001
Wave	−0.06	−1.90	0.05
Deviant peer affiliation (DPA)	2.28	7.58	0.0001
MAOA genotype	−0.03	−0.13	0.89
Model 2
Age	−0.19	−3.46	0.0001
Wave	−0.06	−1.91	0.05
Deviant peer affiliation (DPA)	1.26	2.28	0.05
MAOA genotype	−0.56	−2.19	0.05
Deviant peer × MAOA interaction	1.57	2.67	0.01