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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Average improvement >= 10 dB in pure‐tone audiogram (250 Hz to 2000 Hz) | 2 | Relative Risk (Random, 95% CI) | 0.80 [0.22, 2.88] | |
| 2 Pure‐tone threshold | 2 | Mean difference (Random, 95% CI) | 7.02 [‐6.92, 20.96] |
