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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Total crying time | 1 | 30 | Mean Difference (IV, Fixed, 95% CI) | ‐33.90 [‐76.22, 8.42] |
| 2 Oxygen saturation (%) during examination | 1 | 30 | Mean Difference (IV, Fixed, 95% CI) | ‐1.71 [‐5.85, 2.43] |
