Methadone and buprenorphine-related death rate per 1000 prescriptions issued
| Buprenorphine | Methadone | |||||
|---|---|---|---|---|---|---|
| Year | Deaths | per 1000 ℞ | Deaths | per 1000 ℞ | Relative risk | CI (95%) |
| 2007 | 8 | 0.022 | 325 | 0.129 | 5.77 | 2.86 to 11.64 |
| 2008 | 9 | 0.023 | 378 | 0.136 | 5.85 | 3.02 to 11.33 |
| 2009 | 9 | 0.021 | 408 | 0.135 | 6.55 | 3.38 to 12.68 |
| 2010 | 7 | 0.015 | 355 | 0.113 | 7.28 | 3.44 to 15.38 |
| 2011 | 14 | 0.030 | 486 | 0.161 | 5.35 | 3.15 to 9.11 |
| 2012 | 10 | 0.020 | 414 | 0.146 | 7.32 | 3.91 to 13.71 |
| Total | 57 | 0.022 | 2366 | 0.137 | 6.23 | 4.79 to 8.10 |
℞=prescriptions.