Table 2.
Associations between baseline characteristics, retention and abstinence.
| Retention | Opioid Use | |||||||
|---|---|---|---|---|---|---|---|---|
| Completed 4-Week Stabilization Phase | Weeks in Treatment | Opiate Negative Urinalysis | Treatment Effectiveness Score (TES) ≥ 50% | |||||
| Equality of Means | T | p-value | F | p-value | T | p-value | F | p-value |
| Age | 2.11 | 0.04* | 1.05 | 0.38 | 2.07 | 0.04* | 2.37 | 0.10 |
| Education | 0.31 | 0.76 | 0.64 | 0.64 | 1.21 | 0.23 | 0.15 | 0.86 |
| Days employed | −3.45 | 0.00* | 2.02 | 0.09 | −0.68 | 0.50 | 3.92 | 0.02 |
| COWS | −0.93 | 0.35 | 0.21 | 0.93 | −0.75 | 0.46 | 0.34 | 0.71 |
| ARSW | −0.33 | 0.74 | 0.37 | 0.83 | 1.55 | 0.12 | 3.05 | 0.05 |
| VAS | −0.51 | 0.61 | 0.35 | 0.84 | −0.27 | 0.79 | 0.55 | 0.58 |
| Opioid lifetime use, years | −1.67 | 0.06 | −1.51 | 0.13 | 0.15 | 0.88 | 0.90 | 0.57 |
| Test for Association | Unadjusted Odds Ratio | p-value | Unadjusted Odds Ratio | p-value | Unadjusted Odds Ratio | p-value | Unadjusted Odds Ratio | p-value |
| Gender, Female=1, male =0 | 1.00 | 0.83 | 5.65 | 0.23 | 0.15 | 0.7.0 | 0.84 | 0.66 |
| Race | 4.27 | 0.23 | 12.04 | 0.44 | 4.87 | 0.18 | 7.17 | 0.31 |
| Marital Status, married vs never married | 4.42 | 0.11 | 3.17 | 0.92 | 7.45 | 0.02* | 10.58 | 0.03* |
| Route of Administration, non-IV vs IV | 7.03 | 0.01* | 2.40 | 0.66 | 1.11 | 0.29 | 15.56 | 0.00* |
| Arrested for Criminal Activity | 0.53 | <0.00* | 0.21 | <0.00 | 0.78 | 0.08 | 0.52 | <0.00* |
| On Probation/Parole | 0.41 | 0.52 | 0.32 | 0.01* | 1.16 | 0.28 | 0.48 | 0.79 |
| Depressed, past 30 days | 0.67 | 0.41 | 4.26 | 0.37 | 1.38 | 0.24 | 6.30 | 0.04* |
| Previous drug treatment | 3.97 | 0.05* | 8.94 | 0.06 | 3.53 | 0.06 | 16.63 | 0.00* |
| Opiate use, non-daily vs daily, past 30 days | 1.49 | 0.01* | 1.31 | 0.21 | 1.61 | 0.02* | 1.94 | 0.00* |
| Cannabis use, past 30 days | 0.22 | 0.64 | 1.30 | 0.86 | 0.11 | 0.74 | 2.44 | 0.30 |
| Methamphetamine use, past 30 days | 0.99 | 0.62 | 0.98 | 0.47 | 0.99 | 0.95 | 1.12 | 0.57 |
| Nicotine use, past 30 days | 0.07 | 0.79 | 2.11 | 0.72 | 2.64 | 0.10 | 0.15 | 0.93 |
| Alcohol use, past 30 days | 1.05 | 0.31 | 1.32 | 0.25 | 0.58 | 0.45 | 4.47 | 0.03* |
| Other drug use, past 30 days | 3.02 | 0.08 | 1.20 | 0.27 | 1.27 | 0.24 | 2.33 | 0.13 |
| Polydrug use, past 30 days | 0.78 | 0.38 | 0.37 | .054 | 0.38 | 0.54 | 0.31 | 0.01* |
| Baseline UA negative | 1.28 | 0.26 | 1.05 | 0.31 | 81.12 | <.00* | 86.93 | <.00* |
| Currently living with other drug abuser | 0.39 | 0.53 | 1.34 | 0.25 | 0.47 | 0.49 | 0.18 | 0.67 |
| Dose | NA | NA | NA | NA | 4.06 | 0.03* | 18.90 | 0.00* |
*
Significantly associated with outcome at α=0.05