. Author manuscript; available in PMC: 2018 Dec 5.

Published in final edited form as: Subst Use Misuse. 2012 May 24;47(10):1159–1171. doi: 10.3109/10826084.2012.686142

TABLE 4.

Intercorrelation variables included in the structural equation model

	1	2	3	4
(1) Alcohol initiation age	-
(2) Frequency of recent heroin use	−0.14^*	-
(3) School problems	−0.23^*	0.07	-
(4) Academic failure	−0.10	0.16^*	0.31^**	-

p < .01;

^**

p < .001.