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Cumulative morphine consumption (mg) within the first 24 h after surgery.
| Analysis mehtod | Acetaminophen (n = 116) | Placebo (n = 119) | p |
|---|---|---|---|
| Modified intention-to-treat, mean (SD) | 8.7 (7.7) | 11.2 (9.2) | 0.03 |
| Per-protocol, mean (SD) | 8.3 (7.0) | 11.7 (9.9) | 0.005 |
SD, standard deviation.
