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.
Every five days for last 30 days.
Every five points.
Every five years of age.
Effects used in interaction do not have odds ratios. Instead simple odds ratios are shown for the interaction.
p < .01,
p = .0001.