. Author manuscript; available in PMC: 2012 Apr 1.

Published in final edited form as: J Subst Abuse Treat. 2011 Jan 20;40(3):265–271. doi: 10.1016/j.jsat.2010.11.011

Table 2.

Treatment Enrolled Versus No Treatment Comparisons Across 4-month Outcomes

Outcome Measures (# days per month)	Adjusted Means (S.E.) ¹		T-tests
Outcome Measures (# days per month)	Treatment Enrolled (n=113)	No Treatment (n=127)	t value	df	p-value
Opioid use	18.06 (1.61)	22.78 (1.57)	4.27	230	<.001
Cocaine use	8.23 (2.03)	11.89 (1.97)	2.63	230	<.01
Injection drug use	17.50 (1.74)	22.58 (1.69)	4.27	230	<.001
Equipment sharing	1.02 (1.38)	2.37 (1.34)	1.43	230	ns
Incarceration	1.58 (0.72)	2.80 (0.70)	2.47	230	<.05
Illegal activities	1.76 (1.65)	5.29 (1.60)	3.11	230	<.01
Employment	2.28 (0.97)	2.47 (0.94)	0.29	230	ns
Emergency room visits	0.11 (0.06)	0.06 (0.06)	1.14	230	ns
Syringe exchange use	1.21 (0.61)	2.58 (0.59)	3.24	230	.001

Adjusted for: race, study condition, number of follow-ups, SEP site, treatment history, and ASI Family/Social and Psychiatric composite scores