Table 3.
Cox Regression to predict quicker time from first quarter in need to treatment re-entry
| Odds Ratio (OR)\a |
|||||||
|---|---|---|---|---|---|---|---|
| Bivariate | Multivariate | ||||||
| 95% CI |
95% CI |
||||||
| Predictor | Frequency | OR | Lower | Upper | OR | Lower | Upper |
| Female (vs. Male) | 176 | 1.06 | 0.82 | 1.37 | 1.00 | 0.75 | 1.32 |
| Age: 18–38 | 192 | 1.00 | 1.00 | ||||
| 39+ | 201 | 1.18 | 0.91 | 1.53 | 0.86 | 0.58 | 1.28 |
| Criminal Justice Sys. Involvement | 152 | 1.04 | 0.80 | 1.35 | 1.20 | 0.88 | 1.64 |
| Prime Severity Drug: Alcohol | 73 | 1.39 | 0.73 | 2.67 | 0.78 | 0.36 | 1.68 |
| Cocaine | 201 | 1.76 | 0.97 | 3.19 | 0.92 | 0.43 | 2.00 |
| Opiate | 89 | 2.12 | 1.14 | 3.95 | 1.14 | 0.51 | 2.53 |
| Other\b | 30 | 1.00 | 1.00 | ||||
| Substance Frequency Scale | 393 | 1.10 | 0.97 | 1.25 | 0.97 | 0.83 | 1.14 |
| Substance Problem Scale | 393 | 1.19 | 1.04 | 1.36 | 1.13 | 0.92 | 1.38 |
| Internal Mental Distress Scale | 393 | 1.11 | 0.98 | 1.26 | 1.08 | 0.89 | 1.33 |
| Behavior Complexity Scale | 393 | 1.11 | 0.98 | 1.26 | 0.99 | 0.82 | 1.20 |
| Crime/Violence Scale | 393 | 1.09 | 0.96 | 1.23 | 1.09 | 0.93 | 1.27 |
| First used: under age 15 | 144 | 1.20 | 0.78 | 1.84 | 1.12 | 0.60 | 2.09 |
| 15 to 20 | 196 | 1.16 | 0.76 | 1.76 | 1.21 | 0.70 | 2.11 |
| 21+ | 52 | 1.00 | 1.00 | ||||
| First treatment: 36+ | 159 | 1.19 | 0.82 | 1.74 | 1.23 | 0.51 | 2.94 |
| 25–35 | 144 | 1.07 | 0.73 | 1.58 | 0.88 | 0.49 | 1.56 |
| under age 25 | 62 | 1.00 | 1.00 | ||||
| Time to 1st Tx: less than 10 years | 105 | 0.55 | 0.39 | 0.78 | 1.11 | 0.51 | 2.83 |
| 10–19 years | 125 | 0.91 | 0.68 | 1.22 | 1.05 | 0.61 | 1.79 |
| 20+ years | 163 | 1.00 | 1.00 | ||||
| RMC after: 15 + years since 1st | 35 | 1.08 | 0.66 | 1.78 | 0.88 | 0.42 | 1.82 |
| 1–14 years since 1st | 177 | 1.61 | 1.22 | 2.11 | 1.26 | 0.85 | 1.85 |
| 1st treatment episode | 181 | 1.00 | 1.00 | ||||
| Prior Treatment: 3+ prior episodes | 108 | 1.71 | 1.24 | 2.36 | 1.44 | 0.91 | 2.29 |
| 1 to 2 prior episodes | 137 | 1.32 | 0.97 | 1.82 | 1.20 | 0.81 | 1.79 |
| None | 148 | 1.00 | 1.00 | ||||
| Initial Residential Tx (vs. OP) | 319 | 1.39 | 0.98 | 1.98 | 0.79 | 0.49 | 1.26 |
| Initial Length of Stay in Weeks | 379 | 1.01 | 1.00 | 1.02 | 1.00 | 0.98 | 1.01 |
| Satisfaction with Initial Treatment | 382 | 1.02 | 0.89 | 1.17 | 0.93 | 0.80 | 1.08 |
|
| |||||||
| RMC (vs. Control) | 198 | 2.05 | 1.57 | 2.67 | 2.47 | 1.84 | 3.32 |
\a
Where above 1 is sooner and below 1 is later; Continuous Variables are transformed to z-scores (i.e., OR per standard deviation), length of stay in weeks.
\b
Other drug consists of 24 with marijuana, 3 with amphetamines and 3 with other psychotropic drugs.
Bold indicates p<.05