Patients ≥70 years
| Drug | Mean | Range | Stand Dev | Total (% of 419) |
|---|---|---|---|---|
| Midazolam (mg) | 5 | 10–1 | 2 | 55 (13%) |
| Diazepam (mg) | 8 | 20–2 | 3.5 | 329 (79%) |
| Midazolam and Diazepam | 3.8 7.8 | 10–2 17–2 | 2 3.6 | 35 (8.4%) |
| Fentanyl (mcg) | 75 | 100–25 | 24 | 384 (92%) |
| Pethidine (mg) | 50 | 50 | 1 (0.2%) | |
| Fentanyl and Pethidine | 87 42.6 | 25–100 25–50 | 24 11.6 | 27 (6.5%) |