Comparison 2. Immediate repair (open surgery) versus ultrasound surveillance at one year.
| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Mortality | 2 | 2226 | Peto Odds Ratio (Peto, Fixed, 95% CI) | 1.60 [1.10, 2.32] |