| Opioid strength | Total | ||||
| Sex | Age range (mean) years | Weak | Intermediate | Strong | |
| Male | 55–83 (68.75) | 1 | 1 | 2 | 4 |
| Female | 54–87 (70.73) | 2 | 4 | 5 | 11 |
| All | 54–87 (70.20) | 3 | 5 | 7 | 15 |
Opioid strength based on published categorisation for prescribed analgesics in primary care.23