Table 4.

Correlations between NAcc activation, drinks per week, lifetime drinking volume, and externalizing problems for total group, control, and COA groups separately

	NAcc activation to
	Total		Control		COA		Control versus COAa
	Reward	Loss	Reward	Loss	Reward	Loss	Reward	Loss
Drinks per week	0.33, 0.04	0.31, 0.06	−0.05, 0.84	−0.04, 0.87	0.71, <0.001b	0.61, 0.004b	−2.7, 0.007	−2.2, 0.03
Lifetime drink volume	0.17, 0.29	0.22, 0.17	−0.15, 0.53	−0.24, 0.31	0.48, 0.04	0.60, 0.007	−1.9, 0.05	−2.7, 0.008
Externalizing T scores ages 12–14 years	−0.09, 0.58	−0.01, 0.97	−0.62, 0.004b	−0.44, 0.05	0.60, 0.005b	0.63, 0.003b	−4.2, <0.001b	−3.5, <0.001b
Externalizing T scores ages 12–14 years
Drinks per week	0.49, 0.001b		0.42, 0.07		0.60, 0.005b		−0.76, 0.45
Lifetime drink volume	0.55, <0.001b		0.18, 0.46		0.77, <0.001b		−2.4, 0.02

^aResults of Fisher's Z transformation for testing differences between correlation coefficients.

^bSurvives correction for multiple comparisons (0.05/8 = p < 0.0063).