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| Outcomes | Number of studies | Number of participants | Relative effect (95%CI) | Quality of the evidence |
|---|---|---|---|---|
| Post surgical pain | 7 | 942 | MD =−1.25 (−1.64, −0.86) | Moderate |
| Post surgical anxiety | 6 | 979 | MD =−2.79 (−3.93, −1.65) | Moderate |
| Operating time | 3 | 611 | MD =−6.30 (−15.38, 2.78) | Moderate |
| Post nausea rate | 4 | 774 | OR =0.68 (0.22, 2.07) | Moderate |
MD, mean difference; CI, confidence interval.
