Table 3.
Demographic and psychological predictors of dropout from inpatient treatment (N = 421).
| Variable | Crude HR | AdjHR | 95% CI for adjHR | P value for adjHR |
|---|---|---|---|---|
| Education | ||||
| Primary (ref.) | — | — | — | — |
| Middle level | 0.60 | 0.70 | 0.47-1.04 | .080 |
| High | 0.67 | 0.92 | 0.45-1.87 | .818 |
| Age, y | ||||
| <25 (ref.) | — | — | — | — |
| 25-34 | 0.94 | 0.86 | 0.53-1.40 | .544 |
| 35-44 | 0.89 | 1.13 | 0.63-2.00 | .685 |
| >44 | 0.65 | 0.98 | 0.51-1.87 | .950 |
| Alcohol as primary drug | 0.91 | 1.44 | 0.92-2.26 | .110 |
| Polydrug use (yes) | 1.41 | 1.25 | 0.82-1.91 | .306 |
| Ever injected drugs (yes) | 1.40 | 1.52 | 0.99-2.32 | .055 |
| ADHD (yes) | 1.65 | 1.52 | 0.96-2.40 | .073 |
| PTSD (yes) | 1.54 | 1.33 | 0.77-2.29 | .309 |
| Motivation | 0.70 | 0.62 | 0.48-0.79 | .000 |
| Mental distress | 1.35 | 1.48 | 1.11-1.97 | .008 |
Abbreviations: ADHD, attention-deficit hyperactivity disorder; adjHR, adjusted hazard ratio; CI, confidence interval; PTSD, posttraumatic stress disorders.