|
| Frequency | Percent | Valid Percent | Cumulative Percent |
| nil | 10 | 27.8 | 27.8 | 27.8 |
| non-opioid | 21 | 58.3 | 58.3 | 86.1 |
| opioid | 5 | 13.9 | 13.9 | 100.0 |
| Total | 36 | 100.0 | 100.0 |
|