Skip to main content

View full-text article in PMC

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

Published in final edited form as: J Subst Abuse Treat. 2010 Mar 29;38(4):356–365. doi: 10.1016/j.jsat.2010.02.003

Table 3.

Outcome measures over time using generalized estimating equation (GEE) models

	Continuous measures					Dichotomous measures

Demographic	ASI alcohol	ASI drug	ASI employment	GSI	Peak density	Abstinence	Arrests

	Coef (s.e.)	Coef (s.e.)	Coef (s.e.)	Coef (s.e.)	Coef. (s.e.)	OR_adj (95% CI)	OR_adj(95%CI)

Interview
Baseline (ref)	---	---	---	---		---	---
6-month	−0.04 (0.01)^b	−0.03 (0.01)^b	−0.15 (0.01)^c	−0.16 (0.05)^b	−8.6 (1.l)^c	2.9 (1.9–4.3)^c	0.5 (0.3–0.7)^c
12-month	−0.04 (0.01)^b	−0.02 (0.01)^b	−0.14(0.01)^c	−0.13 (0.05)^b	−8.9 (1.1)^c	3.8 (2.5–5.7)^c	0.4 (0.2–0.6)^c
18-month	−0.04 (0.01)^b	−0.02 (0.01)^a	−0.12 (0.01)^c	ns	−7.0 (l.l)^c	3.3 (2.2–5.0)^c	0.5 (0.3–0.7)^c
Age
18–28 (ref)	---	---	---	---		---	---
29–37	−0.05 (0.01)^a	ns	ns	ns	ns	2.3 (1.3–4.1)^b	ns
38–44	ns	ns	ns	ns	ns	2.2 (1.2–4.0)^a	ns
45–71	ns	ns	ns	ns	ns	2.5(1.4–4.7)^b	ns
Race
Other (ref)	---	---	---	---	---	---	---
White	0.04 (0.02)^a	ns	−0.05 (0.02)^a	ns	ns	ns	0.6 (0.4–0.9)^a
Education
No HS diploma (ref)	---	---	---	---	---	---	---
HS diploma+	ns	ns	−0.14 (0.03)^c	ns	ns	1.8(1.1,3.0)^a	0.6 (0.4–0.9)^a
Marital Status
Married/div/sep (ref)	---	---	---	---	---	---	---
Never married	ns	ns	ns	ns	ns	ns	1.5 (1.0–2.3) ^c
Sex
Female (ref)	---	---	---	---	---	---	---
Male	ns	ns	ns	ns	ns	ns	1.6(1.0, 2.6)^a

^a

p<.05;

^b

p<.01;

^c

p<.001