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

Published in final edited form as: Psychopharmacology (Berl). 2015 Sep 23;233(1):39–48. doi: 10.1007/s00213-015-4074-z

Table 4.

Zero order relationships among delay discounting, personal substance use, and family history (FH) of substance misuse

	2.	3.	4.^a	5.	6.	7.	8.	9.	10.
1. PCAk	.20^***	.08^*	.11^**	.12^**	.14^***	.08^*	.04	.14^***	-.19^***
2. Smoking		.23^***	.31^***	.37^***	.26^***	.09^*	.10^**	.23^***	-.06
3. Alcohol Use			.21^***	.25^***	-.00	.08^*	.04	.05	.07^*
4. Marijuana Use a				.46^***	.08^*	.07	.14^***	.12^**	-.13^***
5. Drug Experimentation					.23^***	.19^***	.19^***	.28^***	-.08^*
6. FH of Smoking						.34^***	.20^***	.82^***	-.10^**
7. FH of Alcohol Misuse							.41^***	.75^***	-.01
8. FH of Illicit Drug Misuse								.59^***	-.11^**
9. Overall FH of Substance Misuse									-.10^**
10. Pretax Income

Note. FH = family history; PCAk = delay discounting factor score from principal components analysis.

n = 730.

^***

p < 0.001;

^**

p < 0.01;

p < 0.05.