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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Maximum flow rate (mL per second) at 1 month after operation | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
| 2 Maximum flow rate (mL per second) at 6‐12 months after operation | 3 | 131 | Mean Difference (IV, Random, 95% CI) | 6.39 [4.68, 8.11] |
