Reduction in pain scores and differences between groups at 15 and 30 min time intervals
| Variable | Paracetamol group | Morphine group | Paracetamol vs morphine groups |
| Difference between baseline and 15 min | 33.8±22.5 (26 to 41) | 39.4±27.2 (30 to 49) | 5.6 (−6 to 17) |
| Difference between 15 and 30 min | 29.8±21.5 (23 to 37) | 17.1±25.6 (8 to 26) | 12.7 (2 to 24) |
| Difference between baseline and 30 min | 63.7 (57 to 71) | 56.6 (48 to 65) | 7.1 (−18 to 4) |
Values shown are mean±SD (95% CI).