. Author manuscript; available in PMC: 2011 Sep 1.

Published in final edited form as: J Subst Abuse Treat. 2010 Dec 3;40(2):183–188. doi: 10.1016/j.jsat.2010.10.002

Table 1.

Logistic regression analysis of pretreatment substance use, depression, age, and purpose in life predicting 6 month post-treatment use of cocaine, and alcohol.

Variable	B	Odds Ratio	Model χ²	df
Cocaine use
Step 1: Covariates			3.38	3
Age	.01	1.01
BDI total score	−.03	.97
Number of pretreatment cocaine use days	.01	1.01
Step 2: Purpose in life			6.53^*	1
PIL-R	−.04^*	.96

Alcohol use
Step 1: Covariates			5.74	3
Age	.01	1.00
BDI total score	−.09	.92
Number of pretreatment cocaine use days	.01	1.01
Step 2: Purpose in life			8.72^**	1
PIL-R	−.05^**	.96

p < .05

^**

p ≤ .01