TABLE 2.

Results of Logistic Regression Analyses

Variables	Entered prison Txa		Completed prison Txb
	OR	95% CI	OR	95% CI
Condition
CO (referent group)
C+T	2.19	.86–5.58	3.59**	1.54–8.37
C+M	10.61c,***	2.63–42.80	3.53**	1.51–8.27
Age	1.05	.99–1.12	1.07*	1.01–1.12
Age at first crime	1.02	.92–1.13	1.04	.96–1.13
Cocaine 30	1.01	.98–1.04	1.00	.97–1.02
Incarceration length	1.00	.99–1.00	1.00*	1.00–1.00
Drug treatment episodes	1.00	.89–1.13	.97	.87–1.09
Motivation scales
Problem Recognition	93	.81–1.08	.97	.87–1.08
Desire for Help	.96	.76–1.22	1.08	.89–1.29
Treatment Readiness	.94	.81–1.08	.93	.83–1.04
External Pressure	.92	.79–1.07	.88*	.78–.99

Note. OR=odds ratio; CO=counseling only; C+T=counseling plus transfer; C+M=counseling plus methadone.

^aχ²=24.25; df=11; p=.009.

^bχ²=26.30; df=11; p=.0001.

^cEntered prison treatment: **C+M vs. C+T.

^*p<.05.

^**p<.01.

^***p<.001.