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Result of subgroup analysis
| Subgroup | Pooled survival (%) | 95% CI (%) | |
|---|---|---|---|
| Geographical region (p = 0.991) | Asia | 66.1 | 58.0 to 74.2 |
| Europe | 65.1 | 52.6 to 77.5 | |
| North America | 65.7 | 59.5 to 71.9 | |
| Type of trauma (p = 0.623) | TBI | 66.1 | 55.4 to 76.2 |
| Non-TBI | 68.1 | 56.9 to 78.5 | |
| Type of initial ECMO(p < 0.001) | VA | 39.0 | 23.3 to 55.6 |
| VV | 72.3 | 63.2 to 80.7 |
