Secondary outcomes
| Intravenous paracetamol (n=47) | Oral paracetamol (n=40) | Difference (95% CI) | P value | |
| Adverse events (%) | 0 | 0 | 0 | na |
| ED length of stay (min) | 195 (153–232) | 203 (63–227) | −8 (−24 to 24) | 0.95* |
| Rescue analgesia† (%) | 86.2% | 84.1% | −2.1%, OR 1.2 (0.4 to 3.8) | 0.74‡ |
| Rescue analgesia§, n | 106 | 122 | ||
| Rescue analgesia (mg) morphine equivalents | 5 (2.5–5.0) | 5 (2.5–5.0) | 0 (0 to 1) | 0.503* |
| Patient satisfaction (%) | 100 (80.0–100.0) | 90.0 (75.0–98.0) | 10% (0 to 20) | 0.10* |
*Mann-Whitney U test.
†Proportion of participants that received any rescue opioid analgesia during the follow-up period.
‡χ2 test, OR.
§Number of administrations.