Table 3.

Results from latent growth curve models of percent days drinking and percent days using drugs from Month 6 (End of treatment) to Month 18 for veterans with substance dependence and major depression.

	% Days Drinking		% Days Using Drugs
	Intercept	Slope	Intercept	Slope
Unconditional model
Mean	8.70***	0.99*	3.28***	0.46
Variance	217.67***	20.45***	74.78***	5.61***
Conditional models	b or r (SE)	b or r (SE)	b or r (SE)	b or r (SE)
Treatment group (TSF vs. ICBT)	−.10	.20*	−.002	.09
12-step affiliation model
Treatment group (TSF vs. ICBT)	−.10	−.15	−.003	−.07
12-step affiliation intercept	−.40***	.25	−.09	−.03
12-step affiliation slope	.57*	−.93**	.14	−.43
12-step attendance model
Treatment group (TSF vs. ICBT)	−.10	−.07	−.003	−.08
12-step attendance intercept	−.29**	.10	−.09	−.05
12-step attendance slope	.37*	−.63**	.26	−.42

TSF: Twelve-Step Facilitation; ICBT: Integrated Cognitive-Behavioral Therapy

^*p < .05,

^**p < .01,

^***p < .001.