. Author manuscript; available in PMC: 2015 Aug 1.

Published in final edited form as: Addict Behav. 2014 Apr 13;39(8):1265–1271. doi: 10.1016/j.addbeh.2014.04.012

Table 4.

Direct, indirect, and total effects of demographics on internal barriers to drug treatment

Variable	Effect	Meth Use	Trt History	Absence of Problem	Negative Social Support	Fear of Treatment	Privacy Concerns
Meth Use¹	Direct Effect			−0.25^*	−0.30^*	−0.10	0.09
Trt History²	Direct Effect			−0.68^*	−0.65^*	0.08	−0.01
	Direct Effect	0.05	0.28^*	0.14	0.06	−0.26	−0.14
	Indirect Effect via Meth Use			−0.01	−0.02	−0.01	0.01
Age	Indirect Effect via Trt History			−0.19^*	−0.18^*	0.02	−0.00
	Total Indirect Effect			−0.20^*	−0.20^*	0.01	0.01
	Total Effect			−0.07	−0.14	−0.25	−0.13
	Direct Effect	−0.18^*	−0.194^*	0.02	0.04	−0.00	−0.02
	Indirect Effect via Meth Use			0.04	0.05	0.02	−0.02
Employment	Indirect Effect via Trt History			0.13^*	0.12^*	−0.02	0.00
	Total Indirect Effect			0.17^*	0.17^*	0.00	−0.02
	Total Effect			0.19^*	0.22^*	0.00	−0.40
	Direct Effect	0.08	0.07	−0.06	0.11	−0.08	0.02
	Indirect Effect via Meth Use			−0.02	−0.02	−0.01	0.01
Marital Status	Indirect Effect via Trt History			−0.05	−0.05	0.01	−0.00
	Total Indirect Effect			−0.07	−0.07	0.00	0.01
	Total Effect			−0.13	0.04	−0.8	0.02
R²				0.59	0.63	0.12	0.05

Note.

: Statistically significant at 0.05 level

: Used methamphetamine more than 30 times in the past 30 days.

: Ever being in drug treatment program.