| |
Dropout - not completing detoxification |
| Wald (df) |
p |
Cox & Snell |
| Predictors |
|
|
R2 |
| Step 1: demographics |
|
|
0.060 |
| Age |
10.55(1) |
< .01 |
|
| Sex |
0.79 (1) |
ns |
|
| |
Step:χ2 = 11.41, df = 1;p < .01 |
| Step 2: drug use characteristics |
0.104 |
| Primary substance of abuse |
8.58 (1) |
<.01 |
|
| Age of first use |
0.50 (1) |
ns |
|
| Duration of drug problems |
0.01 (1) |
ns |
|
| More than one substance of abuse |
0.86 (1) |
ns |
|
| Route of drug administration |
2.08 (1) |
ns |
|
| Frequency of use |
0.45 (1) |
ns |
|
| |
Step:χ2=8.88,df = 1;p < .01 |
|
| Step 3: psychological characteristics |
0.136 |
| Cluster B PD |
6.63 (1) |
0.01 |
|
| Non-Cluster B PD |
0.62 (1) |
ns |
|
| Axis I disorders |
0.29 (1) |
ns |
|
| Chronic pain condition |
1.93 (1) |
ns |
|
| |
Step:χ2=6.58,df = 1;p =.01 |
| |
Model:χ2 = 26.86,df = 3; p <.01 |
