Prevalence rate ratio of trends in prescribed methadone, buprenorphine/naloxone or either in Ontario, Canada, 2015–2018
| Provincial prison population* | Whole population | Are PRRs different? | |||||||
| PRR | 95% CI | P value for trend | PRR | 95% CI | P value for trend | ||||
| Methadone | 1.01 | 0.94 | 1.09 | 0.77 | 0.99 | 0.99 | 0.999 | 0.034 | p=0.078 |
| Buprenorphine/naloxone | 1.70 | 1.47 | 1.96 | 0.000 | 1.20 | 1.19 | 1.21 | 0.000 | p<0.001 |
| Any OAT | 1.12 | 1.04 | 1.21 | 0.003 | 1.04 | 1.04 | 1.04 | 0.000 | p<0.001 |
*26 provincial prisons in Ontario.
OAT, opioid agonist treatment; PRR, prevalence rate ratio.