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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Hearing loss at six weeks (hearing not improved by at least 10 dB in either ear) | 1 | Risk Ratio (M‐H, Fixed, 95% CI) | Subtotals only | |
| 2 OME resolution (two weeks) | 3 | 108 | Risk Ratio (M‐H, Random, 95% CI) | 3.80 [0.93, 15.52] |
| 3 OME resolution (four to six weeks) | 3 | 106 | Risk Ratio (M‐H, Random, 95% CI) | 1.54 [0.76, 3.14] |
