Comparison 1. Nitrous oxide ‐free vs Nitrous oxide‐based.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 Accidental awareness | 14 | Peto Odds Ratio (Peto, Fixed, 95% CI) | Totals not selected | |
1.1 Overall | 14 | Peto Odds Ratio (Peto, Fixed, 95% CI) | 0.0 [0.0, 0.0] | |
1.2 In recovery | 5 | Peto Odds Ratio (Peto, Fixed, 95% CI) | 0.0 [0.0, 0.0] | |
1.3 24 hours | 7 | Peto Odds Ratio (Peto, Fixed, 95% CI) | 0.0 [0.0, 0.0] |