. Author manuscript; available in PMC: 2017 Jun 1.

Published in final edited form as: Drug Alcohol Depend. 2016 Jun 1;163(Suppl 1):S29–S36. doi: 10.1016/j.drugalcdep.2016.01.034

Table 3.

Relations between study variables (N = 95).

	PEP Reward	PEP Extinction	EDR Extinction	Y1 Alcohol	Y3 Alcohol	Y1 Marijuana	Y3 Marijuana	Y1 Cigarettes
PEP Extinction	.71^***	--
EDR Extinction	−.21	−.21	--
Year 1 Alcohol Use	−.10	−.15	−.06	--
Year 3 Alcohol Use	−.18	−.15	−.06	.52^***	--
Year 1 Marijuana Use	−.16	−.28^**	−.01	.34^**	.17	--
Year 3 Marijuana Use	−.20	−.34^**	.11	.24^**	.20	.64^***	--
Year 1 Cigarette Use	−.21	−.21	.13	.23	.11	.36^***	.21	--
Year 3 Cigarette Use	−.26	−.26	.12	.20	.18	.45^***	.42^***	.85^***

Note. PEP = Cardiac pre-ejection period response (change from baseline scores), reverse-coded such that higher numbers indicate greater sympathetic activity. EDR = Electrodermal response (change from baseline scores). Substance use variables represent average frequency of use. Bivariate correlations.

^**

p < .01,

^***

p < .001.