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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: J Subst Abuse Treat. 2016 Nov 16;73:55–62. doi: 10.1016/j.jsat.2016.11.004

Table 5.

Logistic Regression of Factors Associated with Inability to Access Treatment for Group without Those Who Never Were In or Tried to Get In to Treatment (n=1206)

Variable Estimate Standard Error Odds Ratio Confidence Interval
Days used amphetaminesad 0.03* 0.009
Consider self to be homeless 0.44** 0.15 1.55 1.14 – 2.12
Age at interviewc −0.03* 0.007 0.85 0.79 – 0.91
Bisexual vs Heterosexual 0.52* 0.17 1.69 1.20 – 2.36
Gay vs Heterosexual 0.65* 0.25 1.91 1.16 – 3.11
Lesbian vs Heterosexual 0.12 0.52 1.12 0.36 – 2.91
Other vs Heterosexual 0.72 0.71 2.06 0.43 – 7.65
Days used cocainead 0.06* 0.02
Interaction of amphetamine x cocained −0.002 0.001
Cocainea at amphetamine=5 days 1.31 1.09 – 1.56
Cocainea at amphetamine=10 days 1.24 1.05 – 1.47
Cocainea at amphetamine=15 days 1.18 0.97 – 1.43
Cocainea at amphetamine=20 days 1.12 0.88 – 1.42
Cocainea at amphetamine=25 days 1.07 0.79 – 1.43
Cocainea at amphetamine=30 days 1.01 0.69 – 1.46

Note. Hosmer-Lemeshow goodness of fit χ2(8) = 7.4273, p = .4913. AUC = .683. Odds ratio confidence intervals that do not include 1 are significant at p<.05.

a

Every five days for last 30 days.

b

Every five points.

c

Every five years of age.

d

Effects used in interaction do not have odds ratios. Instead simple odds ratios are shown for the interaction.

*

p < .01,

**

p = .0001.