Table 3 Retention rates by substitution medication at 6 months, 1 year, and 2 years
From: Retention in the Austrian opioid agonist treatment system: a national prospective cohort study
| Substitution medication | 6 months (%) | 1 year (%) | 2 years (%) |
|---|---|---|---|
| Methadone | 71 | 59 | 47 |
| Levo-methadone | 82 | 67 | 50 |
| Buprenorphine | 78 | 68 | 59 |
| Buprenorphine/naloxone | 68 | 59 | 48 |
| Slow-release morphine | 86 | 79 | 71 |
| All medications | 80 | 70 | 61 |